AURLTE102 Task 1

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RTO No: 91223 Assessment Task 1 AURLTE102 Diagnose and Repair Light Vehicle Engines

AURLTE102 Diagnose and Repair Light Vehicle Engines Assessment 1 – Questioning – Written Assessment Student Name Syed Muhammad Mohsan Raza Hamdani Student ID Number SCM3793 Unit Start Date 17/07/2023 Unit End Date 13/08/2023 Assessment Due Date 13/08/2023 Date Submitted 13/08/2023 This cover sheet is to be completed by the student and assessor and used as a record to determine student competency in this assessment task The assessment process and tasks were fully explained. Yes I am aware of which evidence will be collected and how. Yes I am aware of my right to appeal an assessment decision. Yes I am aware of the Complaints and Appeals Policy and Procedure Yes I have discussed any additional educational support or reasonable adjustments I require in order to undertake this assessment with the Student Support Services Officer and Trainer / Assessor Yes I have access to all required resources? Yes Cheating & Plagiarism Declaration Student Declaration: I hereby acknowledge by signing this declaration that I have not cheated or plagiarised any work regarding the assessment tasks undertaken in this unit of competency except where the work has been correctly acknowledged. NOTE: Student MUST sign this prior to submitting their assessments to the assessor Signature HAMDANI Date : __13____ / __08____ / 20__23____ Assessment Results Satisfactory or Not YetSatisfactory (Please circle the assessment result for this task) Feedback to Student - Please provide general feedback on the Student’s performance Student Declaration: - I verify that the work completed is my own and that I was adequately informed of the assessment process prior to commencing this assessment task. Assessor Declaration: - I verify that I have adequately explained and negotiated the assessment tasks with the student prior to commencing assessment. Student Name: Syed Muhammad Mohsan Raza Hamdani Assessor’s Name: Student Signature: HAMDANI Date:13/08/2023 Assessor Signature Date Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 2 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines Student Guide for Written Knowledge Assessment Overview of Assessment This is a written assessment task you will be assess on your knowledge of diagnosing and repairing light vehicle engines. The topics that will be covered in the assessment are: 1.Prepare to diagnose and repair engine 2.Diagnose engine 3. Dismantle engine 4.Repair and re-assemble engine 5.Complete work processes This assessment will ensure that the elements, performance criteria, performance evidence and knowledge evidence required, and conditions are adhered to demonstrate competency in this unit assessment task. 1. Read the assessment carefully before commencing. 2. Your Assessor will use the assessment criteria in this document and will provide feedback / comment. 3. You MUST answer all the questions in the assessment tasks in your own words and own handwriting. 4. This is an “Open Book” assessment, and students can use the resources listed in the “Resources Required” section below. Task/s to be assessed To complete this written assessment, you will need to answer the 101 questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions. Time allowed On average, the Assessment should take 4 – 6 hours to complete. Location This theory assessment will be completed in a classroom under the supervision of a trainer/assessor. Decision making rules The candidate MUST be able to demonstrate knowledge to complete the tasks outlined in the elements, performance criteria and foundation skills of this unit, including knowledge of:  Methods to locate and interpret information required to diagnose and repair light vehicle engines, including: o Information provided by customers and supervisors o Manufacturer specifications and procedures or equivalent documentation  Workplace procedures required to diagnose and repair light vehicle engines, including: o Establishing serviceability of tools and equipment o Documentation procedures o Housekeeping procedures, including:  Examination of tools and equipment  Storage of equipment  Identification, tagging and isolation of faulty equipment  Disposal of excess materials  Recycling procedures  Workplace health and safety (WHS) requirements relating to diagnosing and repairing light vehicle engines, including procedures for lifting and supporting light vehicle engines  Environmental requirements relating to diagnosing and repairing light vehicle engines, including procedures for trapping, storing and disposing of fluids released from engines  Operating principles of light vehicle engines, including: o Combustion, including: Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 3 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines  Air-fuel ratios and combustion cycles  Direct injection  Detonation o Engine design, including:  Swept volume and engine volume  Compression ratio  Engine efficiency, including volumetric efficiency, thermal efficiency and mechanical efficiency  Torque and horsepower, including brake horsepower  Diagnostic testing procedures for light vehicle engines, including: o Wet and dry compression tests o Cylinder leakage tests o Oil pressure tests o Checking sources of fluid leaks o Exhaust smoke diagnosis o Checking abnormal engine noises  Dismantling procedures for light vehicle engines, including procedures for: o Measuring clearances and tolerances o Inspecting components  Repair procedures for light vehicle engines, including procedures for removing, replacing and adjusting them  Assembly procedures for light vehicle engines, including procedures for removing, replacing and adjusting them  Post-repair testing procedures for light vehicle engines, including: o Checking oil pressure o Road testing under load o Checking for fluid leaks Assessment conditions Competency is to be assessed in the simulated environment that accurately reflects performance in a real workplace setting. Assessment MUST include direct observation of tasks. Where assessment of competency includes third-party evidence, individuals MUST provide evidence that links them to the light vehicle engines that they have worked on, e.g., Repair orders. Assessors MUST verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application. The following resources MUST be made available:  Automotive repair workplace or simulated workplace  Workplace instructions  Manufacturer engine specifications  Three different light vehicle engines with faults specified in the performance evidence  Diagnostic equipment for light vehicle engines  Tools, equipment and materials appropriate for repairing light vehicle engines. Assessors of this unit MUST satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards. Resources required Learning Resources available to students include:  Automotive Technology (A System Approach) 7 th Edition – Chapters 2, 5, 6, 7, 9, 10, 11, 12, 13, 14  Websites–  Trainer Handouts Results/Re- assessment  The Assessor will grade the assessment and record the result on the front page of this document (S) – Satisfactory if all observable behaviours are correct and (NS) Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 4 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines not satisfactory if any areas are left incorrect  Feedback will be provided on either result  Where a student receives a ‘NS – Not Satisfactory’ result, the assessor will discuss the area of the non-compliant observable behaviour and an opportunity given for re- assessment. This may be through direct observation or a different method of assessment e.g. verbal/oral questioning, problem solving exercise.  If the outcome is again not satisfactory the student result will be deemed (NYC) not yet competent. Additional feedback will be given, and a time agreed upon for further assessment after additional training and skills practice has taken place, this information will be recorded, dated and signed in the re-assessment area on the last page of this document  Where all the assessment tasks have been graded (S) Satisfactory, the student will be deemed C – Competent for the practical component and the result recorded and signed in the area indicated on the last page of this document Reasonable Adjustment If the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 5 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines Assessment 1 – Questioning Written Assessment 1. Identify some important items of personal safety or PPE when diagnosing and repairingengines? Safety glasses or googles to protect the eyes. Protective gloves to safeguard hands from cuts and chemicals. Respiratory protection, such as masks, if exposure to harmful substances is likely. Fill in the Missing Words 2. Place the missing words to complete the following statement about safely removing an engine using the following words? Missing Words: engine, equipment, hoist, precautions, procedure Before removing the __ engine_____________, clean it and the area around it. Also, check the service information for the correct ______ procedure_________ for removing the engine from a particular vehicle. Make sure you adhere to all ____ precautions___________. Make sure you have the tools and ____ equipment___________ required for the job. In addition to hand tools and some special tools, you will need an engine ______hoist_________ or crane and a jack. Multiple Choice question. Selected the correct answer. 3. Which of the following statements about safety glasses is true? A. They should offer side protection. B. The lenses should be made of a shatterproof material. C. Some service operations require additional eye protection to be worn with safety glasses. D. All answers are correct. True or False question 4. Be careful around belts, pulleys, wheels, chains, or any other rotating part. When working around these, make sure your hands, shop towels, or loose clothing do not come in contact with the moving parts. Hands and fingers can be quickly pulled into a revolving belt or pulley even at engine idle speed. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 5. When using lifting equipment, what does SWL stand for? A. Safe weight lift. B. Safe working load. C. Safe working limit. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 6 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines D. Secure working load. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 7 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines 6. What precautions do you need to remember when inspecting or working on or near hot engine and exhaust components? Use appropriate PPE to protect against burns. Allow sufficient cooling time before starting work. Be cautious of hot surfaces and use insulated tools to prevent injuries. 7. How can you controlling hazardous substances, like engine oil and coolant that drip off engine components when diagnosing engines? Use drip pans or absorbent mats to catch leaks. Promptly clean up spills and dispose of contaminated materials properly. Minimize leaks by maintaining engine components and following environmental regulations. Multiple Choice question. Selected the correct answer. 8. When working on light vehicle engines, which document should you use to find how to handle, trap, store and dispose of new or waste oils and coolants? A. Safety Data Sheet (SDS) . B. Technical Service Bulletin (TSB). C. Product Information Letter (PIL). D. All answers are correct. 9. Referring to the VACC Automotive Environmental Guide, explain the four [4] step procedure for trapping, storing and disposing of oils released from engines. 1 Trapping: Use drip pans, absorbent materials, or containment systems to trap and collect the oil that is released from the engine. This helps prevent it from spreading and contaminating the environment. 2 Storing: Transfer the collected oil into suitable and labeled containers that are designed for storing hazardous liquids. Ensure the containers are properly sealed to prevent leaks Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 8 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines or spills during storage. 3 Disposing: Follow local regulations and guidelines for the proper disposal of waste oils. This may involve taking the collected oil to an authorized recycling facility or waste management center. It is important to adhere to the recommended disposal methods to minimize environmental impact. 4 Documenting: Maintain records of the trapping, storage, and disposal process as required by local regulations. This documentation helps demonstrate compliance with environmental guidelines and can be useful for future reference or inspections. True or False question 10. Gasoline (petrol) and diesel engines are classified as external combustion engines. ☐ True or ☐ False 11. Describe the process of combustion. Combustion is a chemical process where fuel reacts with oxygen, releasing heat and light. It involves ignition, fuel and oxygen oxidation, and sustained burning as long as there is fuel, oxygen, and heat. . 12. Name the four (4) strokes of a four (4) stroke engine below. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 9 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines A. Intake Stroke B. Compression Stroke C. Power Stroke D. Exhaust Stroke 13. Describe the four (4) stroke cycle. Intake Stroke: The intake valve opens, and the piston moves downward, creating a vacuum in the cylinder. This allows the air-fuel mixture to enter the combustion chamber from the intake manifold. Compression Stroke: Both the intake and exhaust valves are closed, and the piston moves upward, compressing the air-fuel mixture. This increases the pressure and temperature inside the cylinder. Power Stroke: When the piston reaches the top of the compression stroke, the spark plug ignites the compressed air-fuel mixture. The resulting explosion forces the piston back down, generating power that drives the crankshaft . Exhaust Stroke: As the piston moves upward again, the exhaust valve opens, and the remaining combustion gases are expelled from the cylinder into the exhaust manifold. This prepares the cylinder for the next intake stroke. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 10 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 14. Detonation occurs when part of the air/fuel mixture begins to ignite on its own.This results in the collision of two flame fronts. ☐ True or ☐ False True or False question 15. Detonation is caused by excessively advanced ignition timing, engine overheating, excessively lean mixtures, or the use of gasoline with too low of an octane rating. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 16. To complete a four-stroke cycle in one cylinder, the crankshaft must rotate _____ degrees. A. 180. B. 360. C. 540. D. 720. True or False question 17. The ideal, or stoichiometric mixture of air and fuel for a gasoline (petrol) engine is 14.7. ☐ True or ☐ False True or False question 18. GDI systems inject gasoline directly into the combustion chamber and produces a stratified air-fuel charge that allows for complete combustion with lean air/fuel ratios. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 19. In a GDI [gasoline direct injection] system, the tip of the injector is located ______. A. Inside the combustion chamber. B. On the throttle body. C. In the intake port. D. In the intake manifold plenum. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 11 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines Multiple Choice question. Select the correct answer. 20. The volume of the combustion chamber when the piston is at BDC divided by the volume of the chamber when the piston is at TDC is called _____. A. Displacement. B. Compression ratio. C. Volumetric efficiency. D. Mechanical efficiency. Multiple Choice question. Select the correct answer. 21. What is compression ratio? A. The diameter of the cylinder. B. Cylinder arrangement. C. The ratio of the air to fuel mixture. D. None of these answers is correct. Fill in the Missing Words 22. Place the missing words to complete the following statement about engine displacement using the following words. Missing Words : changed, cylinders, displacement, maintains, sum, superchargers, torque A cylinder’s _____ displacement__________ is the volume of the cylinder when the piston is at BDC. The trend in recent years has been toward smaller displacement engines fitted with turbo- or ____ superchargers___________ . Many manufacturers have moved from 8-cylinder to 6-cylinder or 6-cylinder to 4-cylinder engines to improve fuel economy. Using a turbo- or supercharger ___ maintains__________ high levels of performance while the smaller engine improves economy. As an example, Ford recently announced it will be offering its 1.0 litre turbocharged 3-cylinder Eco Boost engine. An engine’s displacement is the _____ sum__________ of the displacements of each of the engine’s ______ cylinders_________ . Typically, an engine with a larger displacement produces more _____ torque__________ than a smaller displacement engine; however, many other factors influence an engine’s power output. Engine displacement can be _____ changed__________ by changing the size of the bore and/or stroke of an engine. True or False question 23. Engine displacement is commonly measured in cubic inches. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 12 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines 24. Describe what volumetric efficiency is? Volumetric efficiency is a measure of how well an engine intakes air. It compares the actual amount of air drawn into the cylinders to the maximum possible amount. Factors like valve timing and intake design affect volumetric efficiency and influence engine performance. True or False question 25. Thermal efficiency is a measure of how much of the heat formed during combustion is available as power from the engine. ☐ True or ☐ False 26. Explain Mechanical Efficiency. Mechanical efficiency measures how effectively an engine converts input power to output power. It considers losses due to friction, cooling, and exhaust systems. Higher mechanical efficiency means more power is efficiently converted into useful work 27. Describe the difference between torque and horsepower. Torque is the twisting force an engine produces, determining its strength. Horsepower combines torque and speed, representing overall power output. Torque affects acceleration and towing, while horsepower reflects overall performance. Multiple Choice question. Select the correct answer. 28. _____ is a force that does work and tends to turn things. A. Inertia. B. Momentum. C. Torque. D. All answers are correct. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 13 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines 29. How much horsepower is generated by an engine running at 5800 rpm while producing 265 lbs./ft. of torque. Horsepower =( Torque x RPM ) /5252 Using this formula, we can calculate the horsepower as follows: Horsepower = (265 lbs./ft. × 5800 rpm) / 5252 Horsepower ≈ 292.78 Therefore, approximately 292.78 horsepower is generated by the engine running at 5800 rpm while producing 265 lbs./ft. of torque. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 14 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines 30. What is horsepower? Horsepower is a unit of power that measures how quickly work is done. It represents the engine's performance by considering both torque and speed. It's commonly used to compare and evaluate the power of different engines. True or False question 31. Brake horsepower (BHP) is the usable horsepower at the crankshaft. ☐ True or ☐ False Fill in the Missing Words 32. Place the missing words to complete the following statement about compression testing using the following words. Missing Words: Accurate, All, Battery, Button, Comparison, Compression, Consistent, Cylinders, Four, Fuel, Gauges, Hole, Increase, Install, Observe, Reading, Recorded, Remote, Revolution, Screw-in, Spark, Starter, Test, Warm, Wide-open 1 Before conducting a ____ compression___________test, disable the ignition and the ____ fuel___________injection system. Most manufacturers recommend that the engine be ______ warm_________ when testing. 2 Prop the throttle plate into a _____ wide-open__________ position to allow an unrestricted amount of air to enter the _____ cylinders__________ during the test. 3 Remove ______ all_________ of the engine’s ______ spark_________ plugs. 4 Connect a _____ remote__________ starter button to the _____ battery__________ system. 5 Many types of compression ______ gauges_________ are available. The ______ screw-in_________ type tends to be the most _______ accurate________ and easiest to use. 6 Carefully __ install_____________the gauge into the spark plug ____ hole___________of the first cylinder. 7 Connect a ____ battery___________ charger to the car to allow the engine to crank at _____ consistent__________and normal speeds needed for accurate _______test________results. 8 Depress the remote starter ______ button_________and observe the gauge’s _____ reading__________after the first engine _____ revolution__________. 9 Allow the engine to turn through _____ four__________revolutions and ______ _OBSERVE ________the reading after the fourth. The reading should ____ increase___________with each revolution. 10 Readings observed should be _______RECORDED_______ . After all cylinders have been tested, a _____ comparison__________ of cylinders can be made. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 15 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines Multiple Choice question. Select the correct answer. 33. A wet compression test is performed on an engine after a dry compression test revealed low compression on one cylinder. If the compression on the low cylinder rises, it indicates __________? A. Leaking valves. B. Worn rings. C. Worn camshaft. D. All answers are correct. Multiple Choice question. Select the correct answer. 34. A zero reading means there is no leakage in the cylinder. Readings of __________ indicate that the cylinder will not hold any pressure. A. 10%. B. 20%. C. 50%. D. 100%. Fill in the Missing Words 35. Place the missing words to complete the following statement about cylinder leakage testing using the following words. Missing Words: adaptor, applies, air, crankshaft, compressed, compression, escaping, filler, gauge, leakage, measure, operating, pressure, radiator, source, spark, tdc, test, through If a compression ____test___________ shows that any of the cylinders are leaking, a cylinder ___leakage____________ test can be performed to _____measure__________ the percentage of _____pressure__________ lost and to help locate the ____source___________ of leakage. A cylinder leakage tester ____applies___________ compressed air to a cylinder _____through__________ the spark plug hole. The test normally includes the following steps: 1 Make sure the engine is at _____operating__________condition. 2 Remove the _____radiator__________cap, oil ______filler_________cap, dipstick tube, ____air___________filter cover, and all _____spark__________plugs. 3 Rotate the ____crankshaft___________with a remote starter button so that the piston of the tested cylinder is at ______TDC_________on its compression stroke. This ensures that the valves of that cylinder are closed. 4 Insert the threaded ____adaptor___________on the end of the tester’s air ______hose_________ into the spark plug hole. 5 Allow the ____compressed___________air to enter the cylinder. 6 Observe the _____guage__________reading. 7 Listen and feel to identify the source of any _____escaping__________air. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 16 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 36. An oil pressure test is used to determine the wear of an engine’s parts. ☐ True or ☐ False Fill in the Missing Words 37. Place the missing words to complete the following statement about oil pressure testing using the following words. Missing Words: adapters, clearances, contaminated, faulty, engine, gauge, high-pressure, hose, kpa, low, manufacturer’s, much, oil, operating, pressure, problems, psi, reading, relief, Run, running, screen, sensor, test, viscosity An oil ___pressure____________ tester is a gauge with a ___HIGH PRESSURE____________ hose attached to it. The scale of the ____guage___________ typically reads from 0 to 100 ____psi___________ (0 to 690 ____kPa___________ ). Using the correct fittings and _____adapters__________ , the hose is connected to an ____ _oil__________ passage in the _____engine__________ block. The ____test___________ normally includes the following steps: 1 Remove the oil pressure ____sensor___________and tighten the threaded end of the gauge’s _____hose__________into that bore. 2 __Run_____________the engine until it reaches normal _____operating__________temperature. 3 Observe the gauge ____reading___________while the engine is _____running__________at about 1,000 rpm and at 2,500 rpm (or the specified engine speed). 4 Compare the readings to the ___manufacturer’s____________specifications. Excessive bearing ___clearances____________ are not the only possible causes for ______low_________ oil pressure readings; others are oil pump-related ____problems___________ , a plugged oil pickup _____screen__________ , weak or broken oil pressure _____relief__________ valve, low oil level, ____ contaminated___________ oil, or low oil viscosity. Higher than normal readings can be caused by too ____ much___________ oil, cold oil, high oil ____viscosity___________ , restricted oil passages, and a ___FAULTY____________ pressure regulator. True or False question 38. Engine oil pressure testing should be tested with the engine cold. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 17 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines 39. Identify the following fluid leaks from a vehicle. Description Probable Source Honey or Dark Greasy Fluid Engine oil leak Honey or Dark Thick Fluid with a Chestnut Smell Transmission fluid leak Green, Sticky Fluid Coolant/antifreeze leak Slippery Clear or Yellowish Fluid Brake fluid leak Slippery Red Fluid Power steering fluid leak Bluish Watery Fluid Washer fluid leak 40. On the picture of the engine gaskets and seals below, write down the seven [7] areas where engine oil leaks could occur. 1 Oil filter and oil filter housing 2 Intake manifold end seals 3 Oil pan gasket 4 Cyclinder head gasket 5 Intake manifold gasket 6 Front crank shaft seal 7 Valve cover gasket True or False question 41. Examining and interpreting the vehicle’s exhaust can give clues of potential engine problems. ☐ True or ☐ False True or False question 42. It is normal for white smoke to come out of the tailpipe. This is caused by the water that has condensed in the exhaust system as it becomes steam due to the heat of the exhaust system. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 18 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines 43. The colour of the exhaust is used to diagnose engine concerns. For the engine types below, use the visual signs to help diagnose the problem and possible causes. Engine Type Visible Sign Diagnosis Probable Causes Petrol Grey or Black Smoke Visual Inspection Scan for Codes Inspect the Spark Plugs Test Fuel Pressure Check Fuel Injectors Inspect the PCV System Test Sensors Rich Air-Fuel Mixture: The most common cause of black smoke in petrol engines is a rich air-fuel mixture, meaning there's too much fuel and not enough air in the combustion chamber. Diesel Grey or Black Smoke Visual Inspection Scan for Codes Check Turbocharger Check Fuel Quality Examine Exhaust System: A clogged or malfunctioning exhaust system, especially components like the Diesel Particulate Filter (DPF), can cause issues. Rich Air-Fuel Mixture EGR Valve Issues Incorrect Timing Poor Quality Fuel: Contaminated or low cetane diesel fuel can hinder proper combustion, leading to smoke. Petrol and Diesel Blue Smoke Check Oil Level: Ensure that the oil level is correct, not overfilled. Inspect Turbocharger: Look for signs of wear or damage to the seals. Compression and Leak Down Test: These can help determine if there are issues with the piston rings or cylinder walls. Check Valve Seals and Guides: A specialized leak- down tester for the valves can be used here. Inspect PCV System: Make sure it's functioning correctly and not clogged. Worn Piston Rings/Cylinder Liners Faulty Turbocharger Seals Damaged Valve Seals or Guides Faulty Positive Crankcase Ventilation (PCV) System Overfilled Oil Level Petrol White Smoke Check for Coolant Loss: A decrease in the coolant level without external leaks can hint at internal leakage. Inspect the Radiator: Look for the presence of oil in the coolant, which can indicate a blown head gasket or a Water in Combustion Chamber Engine Running Cold Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 19 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines cracked block/head. Compression Test: This can help diagnose potential internal leaks or issues causing low compression. Diesel White Smoke Check for Coolant Loss: Monitor the coolant level to see if it's decreasing over time. Compression Test: A compression test can reveal if the engine has adequate compression in all cylinders. Coolant System Test: Check for the presence of hydrocarbons in the cooling system, indicating a potential head gasket leak or other internal issues. Water in Combustion Chamber Low Cylinder Compression 44. Give some examples of abnormal engine noises, including a description of the sound, and their likely causes below. Type Sound Mostly Heard During Possible Causes Ring noise A continuous metallic scraping or scuffing noise. Particularly noticeable at higher RPMs, when the engine is under load or during sustained operation. Typically, this is caused by worn piston rings or a damaged cylinder wall. The piston rings may be failing to lubricate or seal correctly, leading to metal-to-metal contact. Piston slap A distinct slapping or tapping noise. Immediately after starting a cold engine and tends to reduce as the engine warms up. Often referred to as "piston slap", this noise is more pronounced when there's significant piston-to-wall clearance, especially when cold. As the piston warms up and expands, the noise diminishes. Piston pin knock The noise is a distinct metallic knocking or tapping sound. It's different from the deeper knocking sound you'd hear from a rod bearing. The sound can sometimes be mistaken for valve Cold Start: The knock might be more noticeable during a cold start when clearances are at their maximum due to lower temperatures. As components warm up and expand, the noise might diminish. Idle and Low RPM: Worn Piston Pin: Over time, the piston pin can wear out, leading to increased clearance. Worn or Damaged Piston Pin Bushings: The bushings are there to reduce friction and prevent wear. If they're damaged or worn out, excessive play can develop. Improper Assembly: If the piston pin hasn't been assembled correctly, or if the retaining clips are missing or damaged, it can lead to Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 20 of 37

AURLTE102 Diagnose and Repair Light Vehicle Engines train noise, but it usually has a sharper tone. Piston pin knock is often more pronounced at idle and low RPMs. It can sometimes be drowned out or less noticeable as engine speed increases. Under Load: When accelerating or when the engine is under load, the stresses on the piston and connecting rod increase, which might amplify the knock. knocking. Insufficient Lubrication: A lack of proper lubrication can lead to premature wear of the pin and its associated components. Thermal Expansion Mismatch: If there's a significant mismatch in the thermal expansion rates between the piston and the pin, it can cause binding or clearance issues when the engine heats up. Main bearing noise The noise from worn or damaged main bearings is typically a deep, rumbling knock. This is a lower frequency sound compared to the sharper noise associated with rod bearings or other components like valve train noises. Idle and Low RPM: Main bearing noise is often most pronounced during idle or low RPMs. It might get drowned out or change in character as engine speed increases. Constant Speed or Under Load: The noise can be noticeable when the engine is held at a constant speed, especially when under load. For instance, maintaining a specific RPM while driving uphill can amplify the knock. Start-up: Sometimes, the noise might be more pronounced right after starting the engine, especially if oil has drained from the bearings and the initial lubrication upon starting isn't optimal. Worn Bearings: Bearings wear out over time, especially if an engine has run for a very long mileage or has been subjected to harsh conditions. Insufficient Lubrication: A lack of proper lubrication can lead to premature bearing wear or damage. This can be caused by low oil levels, poor oil quality, or oil contamination. Oil Clearance Issues: If there's excessive clearance between the bearing and the crankshaft, it can result in knocking. Overloading: Placing excessive loads on the engine, especially if it's not designed for such loads, can strain and wear out the bearings faster. Engine Overheating: Persistent overheating conditions can compromise the lubrication quality and accelerate bearing wear. Debris: Foreign particles in the oil can embed into or score the bearings, leading to noise. Rod bearing noise The noise from worn or damaged rod bearings is usually a sharp, distinctive knock. This "rod knock" is a higher-pitched sound compared to the deeper rumble of main bearing noise. Acceleration: Rod knock is often most pronounced during acceleration, especially under load. Idle: The noise might be noticeable at idle but can change in character or get drowned out as engine speed increases. Specific RPM Range: Worn Bearings: Over time and with extended mileage, bearings can wear down. Insufficient Lubrication: Poor lubrication, whether due to low oil levels, poor oil quality, or blocked oil passages, can lead to premature bearing wear. Oil Contamination: Debris or contaminants in the oil can cause accelerated bearing wear. Detonation or Pre-ignition: Abnormal combustion can place extra stress on the Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 21 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines Sometimes, rod knock might be more pronounced at a specific RPM range. After a Cold Start: Immediately after starting the engine, especially if it's been sitting for a while, the noise might be more evident due to initial lack of lubrication. connecting rods and their bearings. Over-revving: Pushing the engine beyond its designed RPM range can strain the rod bearings. Engine Overheating: Persistent overheating can compromise lubrication and put added stress on bearings. Incorrect Bearing Size: If bearings were replaced previously and the wrong size was used, it could lead to excessive clearance and knock. Thrust bearing noise The noise from worn or damaged thrust bearings often manifests as a low-pitched rumbling or grinding noise. Clutch Engagement and Disengagement: One of the most common times to hear thrust bearing noise is when the clutch is engaged or disengaged. Pressing and releasing the clutch pedal can cause the noise to appear or change in pitch. Idle: The noise might be detectable during idle, especially in neutral with the clutch engaged. Sudden Load Changes: Rapid changes in engine load, such as sudden acceleration or deceleration, can make the noise more evident. Stationary: Sometimes, the noise can be more pronounced when the vehicle is stationary and the engine is running, especially when actions are performed that put axial load on the crankshaft, like engaging the clutch. Worn or Damaged Bearing Surfaces: Like any bearing, thrust bearings can wear out over time. Insufficient Lubrication: Inadequate oil quality or quantity can lead to premature bearing wear. Excessive Axial Load: If there's too much endplay in the crankshaft or excessive force from the clutch assembly, it can put undue pressure on the thrust bearings. Misaligned Components: Misalignment of the engine and transmission or any components related to the clutch and gearbox can put sideways stress on the crankshaft, affecting the thrust bearings. Improper Installation: If the thrust bearing was not installed correctly during a previous repair or engine assembly, it can lead to premature wear or failure. Tappet noise The noise is a rhythmic ticking or Wear and Tear: Tappets, like any mechanical component, can wear out over time, leading to Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 22 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines tapping sound. It usually maintains pace with engine RPM and can vary in loudness. Cold Start: The noise can be more pronounced during a cold start, especially if oil has drained away from the tappets or if the oil is too thick due to cold temperatures. As the engine warms up and oil circulates, the noise might diminish. Idle and Low RPM: Tappet noise is often more noticeable at idle and low RPMs. It can become more rapid as the engine speed increases but might get drowned out or change in character at higher RPMs. Consistent RPM: Sometimes, maintaining a steady RPM, especially in a mid-range, can make tappet noise more apparent. increased clearances and noise. Low Oil Level or Poor Oil Quality: Inadequate lubrication can prevent hydraulic tappets from functioning correctly, leading to the characteristic ticking noise. Oil Contamination: Sludge or contaminants in the oil can block the tiny passages in hydraulic tappets, affecting their operation. Excessive Valve Clearance: If the clearance between the tappet and the valve stem is too large, due to wear or improper adjustment, it can result in tappet noise. Failed or Collapsed Lifter: In engines with hydraulic lifters, a lifter can collapse due to wear or lack of oil pressure, leading to noise. Camshaft Wear: Worn camshaft lobes can result in irregular tappet movement, causing noise. Timing chain noise Timing chain noise often presents as a rattling, grinding, or whining sound. Depending on the specific issue, it can be continuous or intermittent. Startup: The noise can be particularly noticeable when starting the engine, especially if the tensioners are hydraulic and take a moment to build up pressure. Idle and Low RPMs: Often, timing chain noise is more pronounced at idle and low RPMs, where other engine noises are less likely to drown it out. Under Load: Sometimes, the noise might become more apparent when the engine is under load, such as during acceleration. Constant Speed: Maintaining a steady Stretched Timing Chain: Over time, the chain can stretch, leading to slack and resulting in noise. Worn Chain Guides or Tensioners: These parts help maintain proper chain tension and alignment. If they wear out, the chain may become loose and produce noise. Insufficient Lubrication: Inadequate lubrication can cause increased friction and wear, leading to noise. Damaged Sprockets: Wear or damage to the sprockets can lead to misalignment or improper engagement with the chain, causing noise. Incorrect Timing: If the timing chain is improperly aligned, it might cause irregular noise and affect engine performance. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 23 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines RPM, especially in the mid-range, may make the timing chain noise more evident. True or False question 45. The maximum amount of cylinder out-of-roundness allowed in most cases is 0.0015 in. (.038 mm). ☐ True or ☐ False Multiple Choice question. Select the correct answer. 46. The maximum amount of cylinder taper normally allowed is: A. 0.0015 in. (.038 mm). B. 0.006 in. (.15 mm). C. 0.015 in. (.38 mm). D. 0.06 in. (1.5 mm). Multiple Choice question. Select the correct answer. 47. A cylinder bore can be checked for out-of-roundness with a _____. A. Dial bore gauge. B. Telescoping gauge and micrometre. C. Both “dial bore gauge” and “telescoping gauge and micrometre”. D. Neither both “dial bore gauge” nor “telescoping gauge and micrometre. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 24 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 48. A cylinder can have a taper of up to 0.010 in. (.254 mm) and be acceptable. ☐ True or ☐ False True or False question 49. A micrometre is used to measure the connecting rod journal for taper. ☐ True or ☐ False True or False question 50. A micrometre is used to measure the connecting rod journal for out-of-roundness. ☐ True or ☐ False True or False question 51. Crankshaft endplay or end clearance check is carried out with a feeler gauge. ☐ True or ☐ False True or False question 52. Crankshaft endplay or end clearance check is carried out with a dial indicator. ☐ True or ☐ False True or False question 53. Undersized bearings are being discussed. A 0.001 in. or 0.002 in. bearing can be used on a stock crankshaft journal if the oil clearance [difference between the bearing diameter and the journal diameter] is slightly excessive and the journal is not excessively tapered or out of round. ☐ True or ☐ False True or False question 54. Undersized bearings are being discussed. A 0.010 in., 0.020 in., and 0.030 in. undersized bearings are only used when the crankshaft journals have been reground. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 25 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines Multiple Choice question. Select the correct answer. 55. Plastigage is used to check the clearance between _____. A. Connecting rod journal and connecting rod bearing. B. Main bearing journal and main bearing. C. Both “connecting rod journal and connecting rod bearing” and “main bearing journal and main bearing”. D. Neither “connecting rod journal and connecting rod bearing” nor “main bearing journal and main bearing”. True or False question 56. Maximum taper for a rod journal is typically 0.001, 0.04 in (0.04, 0.001 mm) ☐ True or ☐ False 57. Describe how to use Plastigage.  Clean the engine components and cut a piece of Plastigage.  Place the Plastigage on the journal, install the bearing or cap, then remove it.  Compare the flattened Plastigage width to the reference scale to determine the clearance. 58. How is deck warpage checked? Clean the engine block surface. Place a straightedge diagonally across the deck. Measure the gap with a feeler gauge and compare to specifications for warpage . True or False question 59. To prevent cylinder head warpage during disassembly, the head bolts should be randomly. ☐ True or ☐ False True or False question 60. You should rotate the engine by hand until all the cam timing marks align to ensure that the cam timing was set properly before the belt tensioner pulley to remove its tension on the belt before removing the timing belt. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 26 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 27 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 61. While removing the cylinder head, you should keep all rocker arms and pushrods in order. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 62. Extreme care should be used when using a scraper or wire brush on parts made of _____. A. Cast iron. B. Stainless steel. C. Titanium. D. Aluminium. True or False question 63. You should use masking tape and a marking pen to label electrical connectors and vacuum line when disassembling an engine. ☐ True or ☐ False 64. Why would you want to have a digital camera available for an engine R&R job? Document the engine's components and connections before removal. Use the photos as a reference for reassembly, especially for complex wiring. Aid in troubleshooting and communication by sharing the images with others. 65. When disassembling an engine, what should you be looking for? Look for signs of wear, damage, or leaks in engine components. Check for excessive build-up or deposits. Ensure proper assembly and compare measurements to specifications . True or False question 66. The flywheel for a vehicle with a manual transmission should be examined for damage and signs of clutch problems. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 28 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 67. Most cylinder wear occurs at the top of the ring travel. ☐ True or ☐ False True or False question 68. A cylinder wall with too smooth surface will prevent the piston rings from seating properly. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 69. Which operation must be performed before removing the pistons from an engine? A. Install rod bolt protector sleeves. B. Remove the cylinder ridge with a ridge reamer. C. If the connecting rods are not marked from the factory, number the rods with a prick punch or number stamp. D. All answers are correct. True or False question 70. A lifter that has a concave contact surface must be replaced. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 71. Valve springs should be checked for all of the following EXCEPT: A. Freestanding height. B. Squareness. C. Compressed height. D. Open pressure. Multiple Choice question. Select the correct answer. 72. Cylinder head warpage can be measured with _____. A. A straightedge and feeler gauge. B. A dial indicator. C. A surface gauge. D. A ball gauge and outside micrometre. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 29 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines 73. While disassembling a cylinder head, what would indicate that the valve seals are worn or damaged? Look for oil leakage around the valve stems or inside the combustion chamber. Check for excessive oil consumption . Observe for blue smoke from the exhaust . Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 30 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines 74. Name three (3) areas on the cylinder head where cracks are most likely to occur? 1 Combustion chamber: Cracks can develop in the combustion chamber due to the high temperatures and pressures generated during the combustion process. These cracks may be near the spark plug hole or in the areas surrounding the valves . 2 Coolant passages: Coolant passages in the cylinder head can develop cracks, especially if the engine has experienced overheating or coolant-related issues. Cracks in these areas can lead to coolant leaks or mixing of coolant and engine oil. 3 Exhaust ports: The exhaust ports, where the exhaust gases exit the cylinder head, are subjected to high temperatures. Over time, thermal stress and cycling can cause cracks to form in this area, leading to exhaust leaks or other performance issues. 75. What is the most common cause of warpage in an aluminium cylinder head? Overheating is the most common cause of warpage in aluminium cylinder heads. Aluminium has high thermal expansion, leading to uneven expansion and contraction. Maintaining proper cooling and monitoring engine temperatures can help prevent cylinder head warpage. True or False question 76. When installing a segmented oil control ring, the end gaps of the three pieces must line up. ☐ True or ☐ False True or False question 77. Tightening of a bolt should be done with an impact wrench followed by a torque wrench. ☐ True or ☐ False True or False question 78. A torque-to-yield bolt can be reused if it is not damaged. ☐ True or ☐ False True or False question 79. Gasket sealants should be used on all gasket installations. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 31 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 80. A gasket installed upside down or reversed may cause loss of oil pressure, overheating and engine failure. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 32 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines True or False question 81. After the break-in period, the cylinder head and intake manifold bolts may need to be retorqued. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 82. What keeps the cylinder head and block aligned before the head bolts are torqued? A. Head gasket. B. Friction between head gasket and block. C. Gravity. D. Dowel pins. 83. Describe how the rocker arms are adjusted on OHV engines with hydraulic lifters. Start with the engine off and at room temperature. Loosen the rocker arm adjusting nut and rotate the rocker arm while tightening until slight resistance is felt. Tighten the nut an additional 1/2 to 3/4 turn, repeat for other rocker arms, start the engine, and listen for noise. True or False question 84. When installing a piston and connecting rod assembly, various markings can be used to make sure the installation is correct. Always check the service information for exact locations. ☐ True or ☐ False True or False question 85. When changing a timing belt or chain, a camshaft locking tool can be used to hold the camshaft in place. ☐ True or ☐ False 86. Consider the various post repair checks that you would make during a road test on the engine? Monitor engine performance, looking for smoothness, responsiveness, and power. Check for abnormal noises, vibrations, or loss of power. Monitor temperature, fluid levels, brakes, transmission, and exhaust emissions for any abnormalities or Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 33 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines issues. 87. To prevent engine damage after it has been rebuilt and to ensure good initial oil control and long engine life, the proper break-in procedure must be followed. Describe what is the proper break-in procedure? Use recommended break-in oil and avoid excessive idling. Gradually increase RPM and load, but avoid heavy loads and high RPMs. Monitor oil levels and temperature, and follow manufacturer's recommendations for break-in duration and procedures. 88. What the is objective of the break-in procedure? The objective of the break-in procedure is to allow the newly rebuilt engine's components to properly wear in and establish optimal contact and sealing surfaces. This promotes good initial oil control, piston ring seating, and overall longevity of the engine. The break-in procedure helps ensure that the engine operates smoothly, maintains proper lubrication, and minimizes the risk of premature component wear or damage . Fill in the Missing Words 89. Place the missing words to complete the following statement about relearn procedures using the following words. Missing Words: based, computer, condition, engine, reconnected, resets, service, vehicles The computer in most late-model ____ vehicles ___________must undergo a relearn or initialization procedure after the battery has been ____ reconnected_ __________. This procedure allows the computers to learn the condition of the ___ engine____________and make adjustments according to the engine’s restored ____condition___________. The last time the engine was run, the computer made adjustments ______based_________on the engine faults present. This procedure allows the _____computer__________to see that those faults were corrected. Initialization also ___resets____________the reference for the crankshaft position sensor and PCM. Always follow the manufacturer’s procedures as outlined in the ____service___________information. 90. Why is it very important that the Job Card is completed correctly? Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 34 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines Accurate record-keeping for future reference. Clear communication and instructions for the job. Efficient workflow management and customer satisfaction. True and False 91. An automotive technician must adhere to workshop safety guidelines and procedures when using all tools and equipment. ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 35 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines True and False 92. An automotive technician is required to document the work that was performed on a vehicle.Writing or typing in the description of the steps performed during the diagnosis of the vehicle should be worded as if the technician is talking to the customer. ☐ True or ☐ False True and False 93. Inspect your tools for cracks, broken parts, or other dangerous conditions before you use them. Never use broken or damaged tools. ☐ True or ☐ False True and False 94. For best results and long tool life, each tool used must be cleaned and checked before placing it back into the toolbox. ☐ True or ☐ False Multiple Choice question. Select the correct answer. 95. Lockout/tagoutpractices and procedures are intended to reduce the risk of automotive technicians’ inadvertently using tools, equipment or materials that have been determined to? A. Be unsafe or potentially unsafe. B. That are in the process of being serviced. C. Both “ Be unsafe or potentially unsafe” and “That are in the process of being serviced” . D. Neither “Be unsafe or potentially unsafe” and “That are in the process of being serviced”. True and False 96. Disposing of excess engine oil, and coolants, can be dispose into their correct sealed recycling drum. ☐ True or ☐ False True and False 97. Second-hand engine components, blocks, cylinder heads etc that are in good condition can be reused on the other vehicles of the same make and model? ☐ True or ☐ False Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 36 of 37

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AURLTE102 Diagnose and Repair Light Vehicle Engines Multiple Choice question. Selected the correct answer. 98. Which source of information will give you the most detail about diagnosing faults in petrol engine systems on the vehicle you are working on? A. Workshop manual. B. Owner’s manual. C. Google. D. Textbooks. True and False 99. An automotive technician must adhere to workshop safety guidelines and procedures and follow the manufactures procedures in the workshop manual when diagnosing faults in engine. ☐ True or ☐ False 100. You are diagnosing engine mechanical fault 2007Toyota FJCruiser and carrying out a compression test. Referring to the 2007Toyota FJCruiser Engine Mechanical Workshop Manual, locate and interpret the engine compression pressures specification for the following: Compression Pressure: 1300kpa Minimum Compression Pressure: 1000kpa Difference between Cylinder Pressure: 100kpa Recommended Compression Test Engine RPM: 2500rpm Multiple Choice question. Select the correct answer. 101. A work order is selected or assigned to a service technician who then performs the listed tasks. The work order should be written so that the technician knows exactly what needs to be done. However, if there is any doubt, the technician should clarify the needed task with the ________ or the person who spoke to the customer. A. Service advisor . B. Service technician. C. Spare parts manager. D. New car sales manager. Document Name: Student Written Questions – AURLTE102 Version: 2.0 © Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K Page Sequence: Page 37 of 37

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AURLTE102 Task 1

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