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All Textbook Solutions for Automotive Technology: A Systems Approach (MindTap Course List)

1RQ Explain the basic requirements for becoming a successful automotive technician.List at least five different types of businesses that hire technicians. Describe the types of work these businesses handle and the advantages and disadvantages of working for them.Name the different ways that you can gain work experience while you are a student.Explain the implied difference between someone who is called a mechanic and one who is called an automotive technician.Individuals often begin a career as an automotive technician in a new car dealership by, which is a good way for a new technician to become familiar with the vehicles sold at the dealership. working at the parts counter performing new car prep being a service advisor serving as the lead tech 7RQ 8RQ Which of the following is typically included in a scheduled preventive maintenance program? oil and filter changes coolant and lubrication services replacement of filters all of the above 10RQ Repair work performed on vehicles still under tire manufacturers warranty is usually performed by independent service shops dealerships specialty shops either a or b 12RQ Normally, whose job is it to greet the customer and complete the repair or work order? service manager parts manager automotive technician service advisor Technician A says that all an individual needs to do in order to become certified by ASE in a particular area is to pass the certification exam in that area. Technician B says that the questions on an ASE exam often force the test taker to choose between two distinct repair methods. Who is correct? Technician A Technician B Both A and B Neither A nor B To be successful, todays automotive technician must have an understanding of electronics the ability to repair and service mechanical systems the dedication to always be learning something new all of the above A technician must have a minimum of year(s) of hands-on work experience to get ASE certification. 1 2 3 4 An experienced technician who passes all eight basic ASE automotive certification tests is certified as a(n). automotive technician master automotive technician service manager parts manager Technician A says battery warranties are often prorated. Technician B says most prorated warranties have a deductible. Who is correct? Technician A Technician B Both A and B Neither A nor B 19RQ Ongoing technical training and support is available from aftermarket parts manufacturers auto manufacturers jobbers all of the above Which of the following is not a recommended step for accurate diagnosis of a problem? Gather as much information as you can about the problem. Thoroughly define the problem. Replace system components and identify' the cause of a problem through the process of elimination. Research all available information and knowledge to determine the possible causes of the problem.What type of information should go into your employment plan?Explain three types of pay systems used for technicians.What should be included in the three main para graphs of a cover letter?True or False? When you feel stress from your job and also feel that the situation will not change, you should seek employment elsewhere.List the characteristics of a good resume.Which of the following behaviors does not show that you are a responsible person? Having set goals and priorities in your work and personal life. Showing a willingness to follow rules, regulations, and policies. Showing a willingness to share the consequences of your mistakes with others. Using ethical reasoning when making decisions.If you decide that leaving your job is the best way to relieve stress at work, describe the steps you should take to end your employment.True or False? When you are filling out an application, you should make it clear how much you expect to be paid.Which of the following is not the right thing to do when you are being interviewed for a job? Show up looking neat and in the clothing more formal than what you would wear on the job. Think carefully about your responses before answering questions. c. To avoid saying too much or offending the interviewer, answer as many questions as you can with a simple yes or no. d. Listen closely to the interviewer and look at the interviewer while he or she talks.Which of the following is not a characteristic of a good employee? Reliable Responsible Overly sociable c. Loyal Applicant A goes to a quiet place immediately after an interview and reflects on what just took place. Applicant B sends a letter of thanks to the interviewer if he has not heard back from the employer within 2 weeks. Who is doing the right thing? A only B only Both A and B Neither A nor B 13RQ 14RQ Which of the following would not be considered a soft skill? Enjoying solving puzzles or problems Caring for or helping people The ability to work independently Taking care to follow orders or instructions Describe the seven basic steps for logical diagnosis.True or False? Critical thinking is the art of being able to judge or evaluate something with bias or prejudice.True or False? The business you decide to work for will pay for all of the benefits you receive.Define the terra diagnosis* as it applies to the duties of an automotive technician.When identifying individuals to use as references while seeking employment, consider all of the following except: Someone who knows and whose opinion is respected, such as a priest, a minister, or an elder in your church. A family member or close friend. Past and present teachers, coaches, and school administrators. People you have worked for or have helped.Describe Newtons first law of motion and give an application of this law in automotive theory.In what four states does matter exist? Cite examples of each.Explain Newtons second law of motion and give an example of how this law is used in automotive theory.Describe five different forms of energy.Describe four different types of energy conversion.Explain why a rotating, tilted wheel moves in the direction of the tilt.Why are gases and liquids considered fluids?Describe how out-of-balance forces can affect the automobile.Describe the effect of pressure on an enclosed volume of a gas.The nucleus of an atom contains and Which of the following is the correct formula used to calculate engine displacement? Displacement = R2LN Displacement = 2RLN Displacement = DLN Displacement = DL2N Work is calculated by multiplying by.13RQ Name three types of simple machines.When one object is moved over another object, the resistance to motion is called Weight is the measurement of the earths on an object.Torque is a force that does work with a action.Explain why elastic mounts are used to connect the engine to the frame.Vacuum is defined as the absence of While discussing different types of energy: Technician A says that when energy is released to do work, it is called potential energy. Technician B says that stored energy is referred to as kinetic energy. Who is correct? Technician A only Technician B only Both A and B Neither A nor B While discussing friction in matter: Technician A says that friction creates heat. Technician B says that friction only occurs with solids and is not present with liquids and gases. Who is correct? Technician A only Technician B only Both A and B Neither A nor B While discussing mass and weight: Technician A says that mass is the measurement of an objects inertia. Technician B says that mass and weight may be measured in cubic inches. Who is correct? Technician A only Technician B only c. Both A and B d. Neither A nor B When applying the principles of work and force, work is accomplished when force is applied to an object that does not move in the metric system the measurement for work is cubic centimeters no work is accomplished when an object is stopped by mechanical force if a 50-pound object is moved 10 feet, 500 ft.-lb of work are produced All these statements about energy and energy conversion are true, except thermal energy may be defined as light energy chemical to thermal energy conversion occurs when gasoline burns mechanical energy' is defined as the ability to do work mechanical to electrical energy conversion occurs when the engine drives the generator Which of the following is not a true statement about heat transfer? Whenever the temperature of something changes, a transfer of heat has occurred. Conduction is the transfer of heat by infrared rays. Light bulbs are examples of heat transfer by radiation. Convection occurs when a hot object moves to an area with less heat.1RQ Explain the four strokes of the internal combustion engine.In addition to the battery, what does the charging system include?Which of the following is not a common emission control system? EGR PCV EVAP Air injection Automatic transmissions use a instead of a clutch to transfer power from the flywheel to the transmissions input shaft. differential U-joint torque converter constant velocity joint Which of the following is not one of the strokes of a four-cycle engine? Compression Exhaust Intake Ignition 7RQ Which is not a common automotive fuel? Gasoline Diesel Hydrogen Ethanol What does the valve train do? It delivers fuel to a device that controls the amount of fuel going to the engine. It houses the major parts of the engine. It converts reciprocating motion to rotary motion. It opens and closes the intake and exhaust ports of each cylinder.Technician A says that liquid cooling an engine helps to maintain a consistent operating temperature. Technician B says that oil is circulated through the cooling system to remove heat from the engines parts. Who is correct? Technician A Technician B Both A and B Neither A nor B 11RQ Which emission control system introduces exhaust gases into the intake air to reduce the formation of NOXin the combustion chamber? EVAP EGR Air injection PCV 13RQ Technician A says that a transaxle delivers torque to the front and the rear drive axles. Technician B says that a transaxle is most commonly found in 4WD pickups and SUVs. Who is correct? Technician A Technician B Both A and B Neither A nor B Which of the following is not part of the running gear? Differential Steering Suspension Brakes Which of the following statements about unibody construction is not true? A unibody is a stressed hull structure in which each of the body parts supplies structural support and strength to the entire vehicle. Unibody vehicles tend to be tightly constructed because the major parts are all welded together. All unibodies are constructed from steel. Most front-wheel-drive unibody vehicles have a cradle or partial frame.Which type of transmission uses pulleys to change engine speed? Dual-dutch Manual Continuously varaible Automatic 18RQ 19RQ What two major engine components work together to change the reciprocating motion of the pistons into a rotary motion? Crankshaft and connecting rod Camshaft and crankshaft Camshaft and connecting rod Crankshaft and valve train Technician A says that an air-conditioning system removes heat from inside the engine. Technician B says that the heating system removes heat from the inside of the vehicle. Who is correct? Technician A Technician B Both A and B Neither A nor B The boiling point of the coolant in an engines cooling system is raised by the thermostat pressure cap radiator water pump While discussing the operation of air-conditioning systems: Technician A says that in order for the refrigerant to release heat, it must be at a low temperature and pressure. Technician B says that in order for the refrigerant to absorb heat, it must be at a high temperature and pressure. Who is correct? Technician A Technician B Both A and B Neither A nor B 24RQ Which of the following is not accomplished by the fuel and air system of a gasoline engine? Stores the fuel for later use Collects and cleans the outside air Delivers fuel to a device that will control the amount of fuel going to the engine Keeps the fuel and air ratio constant regardless of the conditions under which the engine is operating Explain how to properly use and care for a micrometer.List some common uses ot the dial indicator.Wrenches are available in several styles. List and describe three types of wrenches.True or False? The same information available in service manuals and bulletins may also be available electronically on DVDs and the Internet.How do manufacturers inform technicians about changes in vehicle specifications and repair procedures during the model year?Which of the following wrenches is the best choice for torquing a bolt? Open-end Box-end Combination None of the above Technician A says that a micrometer can be used to measure the outside diameter of something. Technician B says that a vernier caliper can be used to measure the inside diameter of a bore. Who is correct? Technician A Technician B Both A and B Neither A nor B 8RQ Which of the following screwdrivers is like a Phillips but has a flatter and blunter tip? Standard Torx* Pozidriv* Clutch head Technician A says most US bolts have a thread pitch between 1.0 and 2.0 threads per millimeter. Technician B says 1.0 thread pitch is a finer thread than a 2.0 thread pitch. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses a punch to align holes in parts during assembly. Technician B uses a chisel to drive out rivets. Who is correct? Technician A Technician B Both A and B Neither A nor B An extractor is used for removing broken. seals bushings pistons bolts 13RQ Technician A uses a blowgun to blow off parts during cleaning. Technician B uses a blowgun to clean off his uniform after working. Who is correct? Technician A Technician B Both A and B d. Neither A nor B Technician A says that flare nut or line wrenches should be used to loosen or tighten brake line or tubing fittings. Technician B says that open-end wrenches will surround the fittings nut and provide a positive grip on the fitting. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses a dial indicator to take inside and outside measurements. Technician B uses a dial caliper to take inside, outside, and depth measurements. Who is correct? Technician A Technician B Both A and B Neither A nor B For a measurement that must be made within one ten-thousandth of an inch. Technician A uses a machinists rule. For the same accuracy. Technician B uses a standard micrometer. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that portable floor jacks may be operated by hydraulics. Technician B says that portable floor jacks may be operated by compressed air. Who is correct? Technician A Technician B Both A and B Neither A nor B When using an air impact wrench. Technician A uses impact sockets and adapters. Technician B uses chrome-plated sockets. Who is correct? Technician A Technician B Both A and B Neither A nor B While discussing thread sealants and lubricants: Technician A says that antiseize compound is used where a bolt might become difficult to remove after a period of time. Technician B says that thread sealants are used on bolts that are tightened into an oil cavity or coolant passage. Who is correct? Technician A Technician B Both A and B Neither A nor B The metric equivalent to 10 miles is. 0.06895 bar 10.6895 bars 1.6093 kilometers 16.093 kilometers 22RQ 23RQ Which of the following thread designs typically has tapered threads to provide for sealing at a joint? UNC NPT UNF UNEF Which of the following is not measured with a feeler gauge set? Piston ring side clearance Flywheel runout Crankshaft end play Spark plug gap Explain why testlights are not recommended for test ing computer circuits.True or False? A compression gauge will show the amount of air leaking through a cylinder as a percentage.Name the two basic types of compression gauges.What tool is used to test engine manifold vacuum.5RQ Technician A says that a brake drum micrometer has pointed anvils. Technician B says that a brake drum micrometer is a large inside micrometer that is read like any other micrometer. Who is correct? Technician A Technician B Both A and B d. Neither A nor B Technician A says that a pyrometer measures temperature. Technician B says that a thermometer measures temperature. Who is correct? Technician A Both A and B Technician B Neither A nor B True or False? A lab scope is a visual voltmeter that shows voltage over a period of time.9RQ Technician A uses a digital volt/ohmmeter to test amperage. Technician B uses the same tool to test resistance. Who is correct? Technician A Both A and B Technician B Neither A nor B Technician A says that a charging station removes old refrigerant and recharges an A/C system. Technician B says that a charging station can remove, filter, and clean refrigerant. Who is correct? Technician A Both A and B Technician B Neither A nor B Which of the following statements about manifold gauge sets is not true? An adapter is required for using R-12 gauges on an R-134a system. A manifold gauge set is used when discharging, charging, and evacuating and for diagnosing trouble in an A/C system. The gauge manifold is designed to control refrigerant flow. When the manifold test set is connected into the system, pressure is registered on both gauges at all times. R-134a service hoses have a black stripe along their length, the low-pressure hose is blue, and the high-pressure hose is red.True or False? A brake shoe adjusting gauge is an inside-outside measuring device used to initially adjust the expanse of brake shoes before the brake drum is installed.When conducting an oil pressure test: Technician A says that lower than normal pressure can be caused by faulty piston oil rings. Technician B says that lower than normal oil pressure can be caused by excessive engine bearing clearances. Who is correct? Technician A Both A and B Technician B Neither A nor B Which of the following conditions can be revealed by fuel pressure readings? Faulty fuel pump Faulty fuel pressure regulator Restricted fuel delivery system All of the above Technician A uses a high-impedance testlight on the high-voltage systems in hybrid vehicles. Technician B uses only CAT-III test instruments to check high- voltage systems. Who is correct? Technician A Both A and B Technician B Neither A nor B Technician A says that a sulfated and plugged fuel injector is caused by electrical problems. Technician B says that a sulfated and plugged fuel injector can be cleaned. Who is correct? Technician A Both A and B Technician B Neither A nor B The tests conducted by a scan tool can also be done by some. fuel injector pulse testers exhaust analyzers engine analyzers digital volt/ohmmeters When using a fuel injector pulse tester. Technician A says that little or no pressure drop indicates a plugged or defective injector. Technician B says that no pressure drop indicates an overly rich condition. Who is correct? Technician A Both A and B Technician B Neither A nor B To measure engine cranking current, a DNIM (digital multimeter) can be used with a(n): continuity tester inductive pickup carbon pile tachometer While discussing a clutch alignment tool. Technician A says that the part of the tool that fits into the clutch plate must have a slightly larger OD (outside diameter) than the bore in the disc. Technician B says that the OD of the part of the tool that goes into the pilot must be slightly smaller than the ID (inside diameter) of the pilot bushing. Who is correct? Technician A Both A and B Technician B Neither A nor B True or False? The angle of the drive shaft at the transmission should equal its angle at the drive axle.Technician A says that ball joints may be pressed into the control arm. Technician B says that ball joints may be riveted to the control arm. Who is correct? Technician A Both A and B Technician B Neither A nor B Which of the following is not a suitable way to bleed an entire hydraulic brake system? Manual bleeding Bench bleeding Pressure bleeding Vacuum bleeding 25RQ What is the correct way to dispose of used oil filters?Where in the shop should a list of emergency telephone numbers be posted?Which of the following offer(s) the least protection for your eyes? Face shield Safety glasses Splash goggles Prescription glasses Which of the following statements about latex and nitrile gloves is not true? The gloves offer protection against cuts. The gloves offer protection against disease and grease buildup under and around your fingernails. Latex gloves are more comfortable but weaken when they are exposed to gas, oil, and solvents. Nitrile gloves are not as comfortable but they are not affected by gas, oil, and solvents.Describe the correct process for lifting a heavy object.What are bloodborne pathogens and why should technicians be concerned about them?List at least five things you should remember when using hand tools.List at least five precautions that must be adhered to while working with or around a vehicles battery.How should a class B fire be extinguished?Where can complete EPA lists of hazardous wastes be found?Which of the following statements about safety glasses is true? They should offer side protection. The lenses should be made of a shatterproof material. Some service operations require that additional eye protection be worn with safety glasses. All of the above statements are true.Gasoline is highly volatile highly flammable dangerous, especially in vapor form all of the above Technician A says that it is recommended that you wear shoes with nonslip soles in the shop. Technician B says that steel-toed shoes offer the best foot protection. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that used engine coolant should be collected and recycled. Technician B says that all oil- based waste materials can be collected in the same container if an approved waste disposal company is hired to rid the shop of the oil. Who is correct? Technician A Technician B Both A and B Neither A nor B There are many ways to clean parts while they are being serviced. These methods can be grouped into three separate categories. What are they?Federal Right-To-Know Laws concern. auto emission standards hazards associated with chemicals used in the workplace employee benefits hiring practices Which of the following is/are important when work ing in an automotive shop? Using the proper tool for the job Avoiding loose-fitting clothes Wearing steel-toed shoes All of the above Technician A says that the volatility of a substance is a statement of how easily the substance vaporizes or explodes. Technician B says that the flammability of a substance is a statement of how well the substance supports combustion. Who is correct? Technician A Technician B Both A and B Neither A nor B Which of the following is not recommended for use when trying to extinguish flammable liquid fires? Foam Carbon dioxide Water Dry chemical List at least five precautions that must be adhered to while working on a vehicle with a high-voltage system.What is the correct procedure for using a fire extin guisher to put out a fire?Technician A ties his long hair behind his head while working in the shop. Technician B covers her long hair with a briraless cap. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses compressed air to blow dirt from his clothes and hair. Technician B uses compressed air to clean off the top of a workbench. Who is correct? Technician A Technician B Both A and B Neither A nor B Heavy protective gloves should be worn when. welding grinding metal working with caustic cleaning solutions all of the above Proper disposal of oil filters includes. recycling used filters draining them for at least 24 hours crushing them all of the above Describe the information found in a VIN.Technician A stresses the need to follow the manufacturer s recommendations for preventive maintenance to his customers. Technician B says that the proper PM service intervals depends on the customers driving habits and typical driving conditions. Who is correct? Technician A Technician B Both A and B Neither A nor B 3RQ 4RQ True or False? Legally, an RO protects the shop and the customer.While examining the color of an engines coolant: Technician A says that because it is orange, the cooling system should be flushed and new coolant put into the system. Technician B says that if the coolant looks rusty, the cooling system should be flushed and new coolant put into the system. Who is correct? Technician A Technician B Both A and B Neither A nor B While checking the condition of a vehicles ATF: Technician A says that if the fluid has a burnt color or odor, the fluid has been overheated. Technician B says that a milky color indicates that engine coolant has been leaking into the transmissions cooler in the radiator. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that if a drive belt does not have the proper tension, it may produce squealing and chirping noises. Technician B says belt tension should be checked even if the engine has an automatic belt tensioner. Who is correct? Technician A Technician B Both A and B Neither A nor B List five different types of oil rating systems.Technician A says that to accurately check brake fluid level, the master cylinder cap must be removed. Technician B says not to remove the master cylinder cap unless absolutely necessary to stop air from entering the reservoir. Who is correct? Technician A Technician B Both A and B Neither A nor B Why should you wipe off the outside of a zerk fitting before injecting grease into it?True or False? All engine coolants contain some phosphates, which make them unfriendly to the environment.List at least five things that should be checked while inspecting a vehicles battery.True or False? If brake fluid is dark or brown colored. the system must be flushed and the fluid replaced.Which of the following statements about drive belt slippage is not true? Excessive heat normally comes from slippage. As a V-belt slips, it begins to ride deeper in the pulley groove. Slippage can be caused by improper belt tension or oily conditions. When there is slippage, heat travels through the drive pulley and down the shaft to the support bearing of the component it is driving.16RQ Which of the following statements about an oils viscosity is not true? The ability of oil to resist flow is its viscosity. Viscosity is affected by temperature; hot oil flows faster than cold oiL Oil flow is important to the life of an engine. In the API system of oil viscosity classification, the lighter oils receive a higher number. Heavyweight oils are best suited for use in high- temperature regions. Low-weight oils work best in low temperature operations.While discussing a vehicles maintenance program: Technician A says most vehicles can safely follow the normal" service schedule in the vehicles owners manual. Technician B says common driving conditions often require a vehicle to use the severe maintenance schedule. Who is correct? Technician A Technician B Both A and B Neither A nor B Which of the following is not a true statement about a mechanics hen? a. This lien states that the shop may gain possession of the vehicle if the customer does not pay for the agreed-upon services. c. The right to impose a mechanics lien can be exercised by a shop within 30 days after the services have been completed. In most cases, the shops right to impose a lien on the vehicle being serviced must be acknowledged by the customer prior to beginning any services to the vehicle. This clause ensures that the shop will receive some compensation for the work performed, whether or not the customer pays the bill.True or False? An oil with the classification of 5W-30 has the viscosity of both a 5- and 30-weight oil. The 5W means the oil has a viscosity of 5 when warm and a 30 rating when it is cold.While discussing the effects of overtorquing wheel lugs: Technician A says that this can cause the threads of the lugs and/or studs to distort. Technician B says that this can cause disc brake rotor distortion. Who is correct? Technician A Technician B Both A and B Neither A nor B The most commonly used brake fluid in domestic vehicles is: DOT 2 DOT 3 DOT 4 DOT 5 Which of the following greases are best suited for lubricating automotive wheel bearings? LA LB GA GC While discussing the special preventive maintenance items for a hybrid vehicle: Technician A says that special coolants are required in most hybrids because the coolant not only cools the engine, but also the inverter assembly. Technician B says that the battery cooling system may have a filter in the ductwork from the outside of the vehicle to the battery box and that this filter needs to be periodically changed. Who is correct? Technician A Technician B Both A and B Neither A nor B How does a technician determine the proper inflation for a vehicle's tires?1RQ Describe what takes place during the four strokes of a four-stroke cycle engine.As an engines compression ratio increases, what should happen to the octane rating of the gasoline?What test can be performed to check the efficiency of individual cylinders?Describe tappet noise.Which of the following statements about engines is not true? The engine provides the rotating power to drive the wheels through the transmission and driving axle. Only gasoline engines are classified as internal combustion. The combustion chamber is the space between the top of the piston and the cylinder head. For the combustion in the cylinder to take place completely and efficiently, air and fuel must be combined in the right proportions.Which stroke in the four-stroke cycle begins as the piston reaches BDC after combustion takes place? Power stroke Exhaust stroke Intake stroke Compression stroke True or False? In an HCCI engine, combustion immediately and simultaneously produces a steady flame across the mixture.Which of the following is not a true statement about diesel engines? The operation and main components of a diesel engine are comparable to those of a gasoline engine. Diesel and gasoline engines are available as four- stroke combustion cycle engines. Diesel engines rely on glow plugs instead of spark plugs to initiate ignition. The compression ratio of diesel engines is typically three times that of a gasoline engine.True or False? SAE mandates that engine, when viewed from the front, will be rotating in a counterclockwise direction.Technician A says head gasket thickness has an effect on compression ratio. Technician B says connecting rod length has an effect on compression ratio. Who is correct? Technician A Technician B Both A and B Neither A nor B 12RQ The stroke of an engine is the crank throw half twice four times equal to True or False? The camshaft is always located in the engine block.Which of the following is an expression of how much of the heat formed during the combustion process is available as power from the engine? Mechanical efficiency Engine efficiency Volumetric efficiency Thermal efficiency While diagnosing the cause for blue smoke from the tailpipe of a gasoline engine; Technician A says that a faulty fuel injection system is a likely cause. Technician B says that it is most likely caused by coolant leaking into the combustion chamber. Who is correct? Technician A Technician B Both A and B Neither A nor B 2ASRQ While determining the cause for air leaking out of the oil throttle body during a cylinder leakage test: Technician A says that a burnt intake valve is indicated. Technician B says that a warped cylinder head or bad head gasket is indicated. Who is correct? Technician A Technician B Both A and B d. Neither A nor B While diagnosing the cause for an engine having good results from a compression test and cylinder leakage test but poor results from a cylinder power balance test: Technician A says that incorrect valve timing is the most likely cause. Technician B says that a severely worn cam lobe is a likely cause. Who is correct? Technician A Technician B Both A and B Neither A nor B While looking at the results of an oil pressure test: Technician A says that higher than normal readings can be caused by using oil that is too thin. Technician B says that higher than normal readings can be expected on a cold engine. Who is correct? Technician A Technician Both A and B Neither A nor B A vehicle is producing a sharp, metallic rapping sound originating in the upper portion of the engine. It is most noticeable during idle. Technician A diagnoses the problem as piston pin knock Technician B says that the problem is most likely a loose crankshaft thrust bearing. Who is correct? Technician A Technician B Both A and B Neither A nor B While conducting an engine vacuum test; Technician A says that a steady low vacuum reading can be caused by a burned intake valve. Technician B says that an overall low vacuum reading is caused by something that affects all of the engines cylinders. Who is correct? Technician A Technician B Both A and B Neither A nor B While determining the most likely problem of an engine with poor compression test results but acceptable cylinder leakage readings: Technician A says that the problem may be incorrect valve timing. Technician B says that the problem is worn valve seats. Who is correct? Technician A Technician B Both A and B Neither A nor B When a customer states that black exhaust smoke is coming from the exhaust: Technician A says faulty oil rings may be the cause. Technician B says a faulty' head gasket may be the cause. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that if an engine had good results from a compression test, it will have good results from a cylinder leakage test Technician B says that if an engine had good results from a cylinder leakage test, it will have good results from a running compression test Who is correct? Technician A Technician B Both A and B Neither A nor B WHat should be worn when working with any type of cleaning solvent or chemical?2RQ What is the best way to lift a vehicle when preparing to remove an engine? Frame contact hoist Drive on lift Hydraulic jack and safety stands Engine hoist True or False? The first step in removing an engine is usually the removal of the intake and exhaust manifolds.5RQ The buildup of minerals and deposits inside the cooling system is called. organic soil scale rust grime Hydrocarbon solvents are. flammable toxic both a and b neither a nor b 8RQ Which cleaning method uses high-frequency sound waves to create microscopic bubbles that loosen dirt from parts? Ultrasonic Salt bath Thermal Caustic Parts must be when they go into an abrasive blast machine. wet dry grease-free both b and c 11RQ Which of the following is not considered part of the organic soil grouping? Petroleum by-products derived from crude oil, including tar, road oil, engine oil. gasoline, diesel fuel, grease, and engine oil additives Rust that is a product of coolant and aluminum By-products of combustion, including carbon, varnish, gum, and sludge Coatings, including such items as rust-proofing materials, gasket sealers and cements, paints, waxes, and sound-deadener coatings Why should a memory saver be installed before dis connecting a vehicles battery?Which of the following statements is not true about thermal cleaning? The main advantage of thermal cleaning is a total reduction of all oils and grease on and in blocks, heads, and other parts. After a part has been thermally cleaned, it should be submerged in water to cool it quickly. Thermal cleaning leaves behind a dry, powdery ash on the parts. After a part has been thermally cleaned, it should be washed or blasted with shot Which of the following is not a common way to identify the location of cracks in the engine block or cylinder head? Pressure checks Vacuum test Magnetic particle inspection Penetrative While working on an engine with an excessive amount of sludge buildup: Technician A says that the presence of sludge is a signal to look for wrear on other components. Technician B says that excessive buildup can indicate a poor maintenance schedule. Who is correct? Technician A Technician B Both A and B Neither A nor B While discussing the common causes for cracks developing in a cylinder block or head: Technician A says that the chilling of a hot engine by a sudden rush of cold water or air over the surf ace may cause cracking. Technician B says that excessive overheating is a common cause. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses a crane to remove an engine from its compartment- Technician B uses an engine cradle to remove an engine from its compartment Who is correct? Technician A Technician B Both A and B Neither A nor B 4ASRQ While discussing abrasive cleaners: Technician A says that shot is angular in shape and is used for aggressive cleaning. Technician B says that grit is an angularshaped media and is used to peen metal surfaces. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A labels or marks all electrical wires before disconnecting them. Technician B labels or marks all vacuum hoses and verities the connections to the underhood decal before disconnecting them. Who is correct? Technician A Technician B Both A and B Neither A nor B While discussing cleaning engine parts: Technician A says that the cleaning method used depends on the component to be cleaned and the type of cleaning equipment available. Technician B says a parts tumbler is good for cleaning aluminum components such as intake manifolds and cylinder heads. Who is correct? Technician A Technician B Both A and B Neither A nor B While loosening the axle shaft hub nuts on a FWD vehicle: Technician A says that a large breaker bar should be used to prevent damage to the bearings. Technician B says that these nuts should be loosened with the vehicle on the floor and the brakes applied. Who is correct? Technician A Technician B Both A and B Neither A nor B While preparing to remove an engine: Technician A turns the crankshaft pulley to set the engine at number 1 cylinder TDC. Technician B removes the drive belt and crankshaft pulley. Who is correct? Technician A Technician B Both A and B Neither A nor B After removing the vehicles hood in preparation for removing the engine: Technician A places the hood on the roof of the vehicle. Technician B sets the hood aside in a safe place on fender covers or cardboard. Who is correct? Technician A Technician B Both A and B Neither A nor B Explain how to use a micrometer to measure cam lobe wear.What is the cylinder taper?Describe how to measure main bearing oil clearance.Where does maximum cylinder bore wear occur and why?What type of valve lifter automatically compensates for the effects of engine temperature? Hydraulic Solid Roller All of the above List three types of compression rings.Most pistons used today are made of. cast iron aluminum ceramic none of the above Cam bearings in OHV engines are typically which type? Split insert Full-round Thrust d. None of the above Which of the following is not of concern when checking a piston? Diameter Surface finish Groove wear Pin boss wobble True or False? Cylinder taper is the difference in a cylinders diameter between the bottom of the cylinder bore and the top of the bore just below the ridge.What is the purpose of a thrust main bearing?Each halt' of a split bearing is made slightly larger than an exact half. What is this called? Spread Crush Both a and b Neither a nor b 13RQ 14RQ Which type of oil ring is slotted so that excess oil can pass through it? Cast iron Segmented Both a and b Neither a nor b When removing the balance shaft assembly: Technician A inspects the bearings for unusual wear or damage. Technician B smoothens a damaged camshaft or balance shaft journal by lightly sanding it Who is correct? Technician A Technician B Both A and B Neither A nor B After installing cam bearings: Technician A checks that the oi, holes in the bearings are properly aligned with those in the block by squirting oil into the holes. Technician B checks for proper alignment by inserting a wire through the holes. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that a cylinder wall with too smooth a surface will prevent the piston rings from seating properly. Technician B says that a cylinder wall should have a crosshatch honing pattern. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses a pry bar to stretch the timing chain onto its sprockets. Technician B cools the timing sprockets so that the timing chain will slip over the teeth. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A installs a cup-type core plug with its flanged edge outward. Technician B installs a dish- type core plug with the dished side facing inward. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses a micrometer to measure the connecting rod journal for taper. Technician B uses a micrometer to measure the connecting rod journal for out-of-roundness. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that piston ring end gaps should be the same for each ring on a piston. Technician B says that piston ring end gaps should be aligned before installing the piston into its bore. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A checks crankshaft oil clearance with a feeler gauge. Technician B uses a dial indicator to check crankshaft oil clearance. Who is correct? Technician A Technician B Both A and B Neither A nor B When removing the piston and rod assemblies from a cylinder block; Technician A positions the throw of the crankshaft at the top of its stroke and removes the connecting rod nuts and cap. Technician B covers the rod bolts with protectors and pushes the piston and rod assembly out with the wooden hammer handle or wooden drift and supports the piston as it comes out of the cylinder. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that crankshaft counterweights offset the weight of the connecting rods and pistons. Technician B says that crankshaft counterweights are used to dampen crankshaft torsional vibrations. Who is correct? Technician A Technician B Both A and B d. Neither A nor B Explain staged and continuously variable value timing systems.Define valve margin.What usually causes warpage in an aluminum cylin der head?What are the two ways pushrods can be checked for straightness?Which of the following is not true of knurling? It is one of the fastest techniques for restoring the ID dimensions of a worn valve guide. It reduces the amount of work necessary to reseat the valve. It is useful for restoring badly worn guides to their original condition. None of the above.True False? Fiats MultiAir system relies on mechanical, hydraulic, and electronic technologies.To allow the engine to run on the Atkinson cycle, Toyotas VVT-i system causes the- intake valve to open early exhaust valve to open late intake valve to close late exhaust valve to close early 8RQ To ensure proper seating of the valve, the valve seat must be. the correct width in the correct location on the valve face concentric with the guide all of the above When checking valve fit, contact between the valve face and seat is above the center of the seat. Technician A says the seat should be cut with a throating stone to raise the contact. Technician B says to use a topping stone to lower the contact. Who is correct? Technician A Technician B Both A and B Neither A nor B If the valve face and valve seat do not contact each other evenly after reconditioning. regrind the valve with the same stone regrind the seats with stones of different angles knurl the valve guide none of the above Many engines with WT have a phaser mounted to the end of one or more camshafts. Which of the following statements is not true? A phaser is used to alter valve timing. Most phasers are controlled by oil pressure. Phasers are used to change valve lift. Phasers can be used to change valve overlap.Multiple valve engines tend to be more efficient than two-valve-per-cylinder engines because they. allow for increased port areas have smaller valves c. provide less restriction to the airflow d. all of the above Which of the following is not a type of valve guide seal? Positive Negative Umbrella O-ring Which of the following statements is not true? Normally the desired valve face-to-seat contact area for intake valves is 1 inch. Normally the desired valve face-to-seat contact area for exhaust valves is 1 inch. The average valve seat width is 0.060 inch and the average seat begins 0.030 inch from the valve margin. A properly reconditioned seat has the correct seat width and sealing position on the valve face.While discussing the reasons for resurfacing a cylinder head; Technician A says it should be resurfaced to make it flat and very smooth so the head gasket can seal properly during engine assembly. Technician B says that it can be resurfaced to raise the compression. Who is correct? Technician A Technician B Both A and B Neither A nor B While inspecting the timing gears of an engine: Technician A says a gear with cracks, spalling, or excessive wear on the tooth surface indicates improper gear backlash. Technician B says the diameter of many of the engines timing gears and sprockets should be measured with the drive chain wrapped around the individual gears. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says that positive valve stem seals fit tightly around the top of the valve guide. Technician B says that positive stem seals scrape oil off the valve as it moves up and down. Who is correct? Technician A Technician B Both A and B Neither A nor B When fitting a freshly ground valve into a freshly ground seat: Technician A says the seat should be ground more with the same stone if the margin is too small. Technician B says the seat should be ground more with the same stone if the valve seat is too high. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says off-square springs may cause increased stem-to-guide wear. Technician B says excessive spring tension may cause premature camshaft wear. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A says it is not necessary to measure valve stem height unless the valves have been replaced. Technician B says valve stem height can be adjusted with shims. Who is correct? Technician A Technician B Both A and B Neither A nor B Technician A uses a 30-degree stone for topping a 45-degree valve seat. Technician B uses a 60-degree stone to lower a 45-degree valve seat. Who is correct? Technician A Technician B Both A and B Neither A nor B While discussing the Valvetronic system: Technician A says the system has no need for a throttle plate. Technician B says the system alters the lift of the intake valves. Who is correct? Technician A Technician B Both A and B Neither A nor B While checking a hydraulic phaser after the camshaft has been removed from the engine: Technician A attempts to rotate the phasers timing gear by hand and replaces it if it does not move. Technician B applies air pressure to the advance and retard ports and replaces it if the gear does not move. Who is correct? Technician A Technician B Both A and B Neither A nor B While servicing a pair of aluminum cylinder heads: Technician A says it' needed, both heads must be machined equally and the same amount of material removed from each. Technician B replaces both heads if the warpage exceeds the specified allowable amount Who is correct? Technician A Technician B Both A and B Neither A nor B True or False? Make sure you locate and adhere to the wet torque specs when tightening a bolt that has been lubricated with oil or any other liquid.How does a torque-to-yield bolt differ from standard bolts?How do seals differ from gaskets?Where are thread sealers most often used?What are the major differences between aerobic and anaerobic sealants?Which of the following statements is incorrect? Cylinder head bolts must be tightened to the proper amount of torque. Most cylinder head bolts are tightened in a sequence that starts on one end. On some engines, the head bolts are retorqued after the engine has been run and is hot. Many engines use head bolts of different lengths.True or False? Valve lash is adjusted in many different ways; however, on many OHC engines, the clearance is set by replacing a shim.Which of the following statements about the purpose of a cylinder head gasket is not true? It seals intake stroke vacuum, combustion pressure, and the heat of combustion. It prevents coolant leakage and resists rust, corrosion and, in many cases, meters coolant flow. It allows for lateral and vertical head movement as the engine heats and cools. It meters lubricating oil onto the engines cylinder walls.True or False? The computer in most late-model vehicles must undergo a relearn or initialization procedure after the vehicles battery has been disconnected and reconnected.Graphite is. an anaerobic substance an RTV an aerobic substance none of these

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