AURETR010 Knowledge Based Questions- Attempt review

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School

Harvard University *

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ANALYTICAL

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Chemistry

Date

Apr 3, 2024

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pdf

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Uploaded by ProfessorOxideStingray32

Dashboard / My courses / AUR30620 C3A2210 / AURETR010 / AURETR010 Knowledge Based Questions Started on Sunday, 30 July 2023, 8:09 PM State Finished Completed on Sunday, 30 July 2023, 8:47 PM Time taken 38 mins 11 secs Grade 54.00 out of 54.00 ( 100 %) Question 1 Correct Mark 1.00 out of 1.00 Question 2 Complete Mark 1.00 out of 1.00 Question 3 Correct Mark 1.00 out of 1.00 Material safety data sheets (MSDS) or safety data sheets (SDS) contain important chemical information and must be furnished to all employees annually. New employees should be exposed to the sheets as part of their job orientation. Select one: True  False Identify five (5) important items of personal protective equipment (PPE). 1. Coverall 2. Safety Gloves 3. Safety Goggles 4. Safety Boots 5. Earmuffs Which fire extinguisher below should you use on electrical fires? Foam. Water. Carbon dioxide.  None of these are correct. Your answer is correct.

Question 4 Correct Mark 1.00 out of 1.00 Question 5 Correct Mark 1.00 out of 1.00 Question 6 Correct Mark 1.00 out of 1.00 Complete the following statement about hazards involved in soldering using the following words. Words: Check, Cleaners, Flick, Hands, Holder, Insulated, Iron, People, Sensitive, Temperature, Tools, Touch, Treated, Yourself Although solder has a relatively low melting point this temperature  is more than high enough to cause serious burns to people  or objects. It is important to hold the soldering iron only by the insulated  handle, never touch the heating element or tip when the soldering iron  is on. The soldering iron will remain hot for some time after it is turned off so always check  that it has cooled down before touching it, e.g. if changing the tip. When you are not soldering always keep the soldering iron in a proper holder  so that you don’t touch it accidently and it doesn’t heat or burn other objects such as the benchtop. Don’t hold parts being soldered with your hands  as these will also be heated when being soldered. Don’t flick  molten solder from the soldering iron or wipe the tip on brass wool type tip cleaners  . If using a hot plate for surface mount soldering do not touch  the hot plate. Use utensils such as pliers to place and remove printed circuit boards (PCB’s) from the hotplate. If using hot air tools  for soldering, de-soldering or rework, do not direct the hot air stream onto yourself  or other people. If using an oven allow the PCB to cool before handling or use utensils. Don’t place hot PCB’s on temperature sensitive  surfaces. If burns occur, they should be treated  by holding under cold running water for several minutes and assistance sought if burns are severe. Incidents should be reported. Your answer is correct. Leaded solder contains lead which is a harmful material. Select one: True  False Solder flux creates fumes when heated during soldering which may be harmful if inhaled. Use a fume extractor to avoid inhaling fumes. Select one: True  False

Question 7 Correct Mark 1.00 out of 1.00 Question 8 Correct Mark 1.00 out of 1.00 Question 9 Correct Mark 1.00 out of 1.00 Question 10 Correct Mark 1.00 out of 1.00 Never use acid core solder. It creates corrosion and can damage electronic components. Select one: True  False Liquid solder flux may generate a flammable vapour. Keep away from open flames and other sources of ignition. Select one: True  False Soldering may result in the emission of hazardous metallic fumes and vapours from fluxes used. personnel should position themselves so as to not directly inhale the fumes/vapours. Select one: True  False Flux is a chemical compound that when applied to the metals to be soldered prevents further oxidisation and assists in the flow of solder onto the job. Select one: True  False

Question 11 Complete Mark 1.00 out of 1.00 Question 12 Complete Mark 1.00 out of 1.00 Prepare a list of safety precautions that should be adhered to when soldering wires in the cabin of a vehicle. Your list MUST include 5 different safety precautions. Adequate Ventilation, Heat Protection, Fire Safety, Proper Wiring Identification, Keep Things Organized Comment: According to the SDS for CIGWELD Comweld 965 Soldering Flux, what container should NOT be used to trap and store this flux during soft soldering activities? DO NOT use aluminium or galvanised containers

Question 13 Correct Mark 1.00 out of 1.00 Question 14 Correct Mark 1.00 out of 1.00 Question 15 Correct Mark 1.00 out of 1.00 Complete the following statement about disposing CIGWELD Comweld 965 Soldering Flux in soldering using the following words. Words: Chemical, Licensed, Neutralise, Material, Recycle, Supplier, Treatment, Waste Recycle  wherever possible. Consult manufacturer for recycling options or consult local or regional waste  management authority for disposal if no suitable treatment  or disposal facility can be identified. Treat and neutralise  at an approved treatment plant. Treatment should involve: Neutralisation with soda-ash or soda-lime followed by: burial in a land-fill specifically licensed  to accept chemical and / or pharmaceutical wastes or Incineration in a licensed apparatus (after admixture with suitable combustible material  ). Containers may still present a chemical  hazard/ danger when empty. Return to supplier  for reuse/ recycling if possible. Your answer is correct. A wiring diagram show the actual position of the part on a vehicle. Select one: True False  All the following information about the vehicle’s wiring can be found in the electrical schematics with the exception of _____. Wire colour. Wire size. Connector terminal designation. Component location on vehicle.  Your answer is correct.

Question 16 Correct Mark 1.00 out of 1.00 Question 17 Correct Mark 1.00 out of 1.00 Question 18 Complete Mark 1.00 out of 1.00 When diagnosing wiring faults, you should use the electrical schematic diagram to trace the flow of current through all the switches, wires, connectors, circuit protection devices, and grounds related to the problem before he begins testing. Select one: True  False Where would you find the wiring diagram for the vehicle you are working on? Internet. Workshop manual (WSM).  Automotive Technology Textbook. All these answers are correct. Your answer is correct. Most automotive circuits contain five (5) basic parts. 1. Fuse 2. Wiring 3. Switch 4. Load 5. Power Source Comment:

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