Test Bank For Electric and Hybrid Electric Vehicles 1st Edition by James D. Halderman

Test bank
Electric and Hybrid Electric
Vehicles
James Halderman 1st Edition
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,Electric and Hybrid Electric Vehicles, 1e (Halderman)
Chapter 1 Hybrid and Electric Vehicle Safety

1) Rubber gloves should be worn whenever working on or near the high-voltage circuits or
components of a hybrid electric vehicle. Technician says A that the rubber gloves should be rated
at 1000 volts or higher. Technician B says that leather gloves should be worn over the high-
voltage rubber gloves. Which technician is correct?
A) Technician A only
B) Technician B only




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C) Both technicians A and B
D) Neither technician A nor B
Answer: C




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Page Ref: 4
Objective: 1-4 List the types of personal protective equipment.




D
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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2) A CAT III certified DMM should be used whenever measuring high-voltage circuits or
components. The


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CAT III rating relates to ________.
A) high voltage
B) high energy
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C) high electrical resistance
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D) both high energy and high voltage
Answer: D
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Page Ref: 7
Objective: 1-2 Describe the differences between a CAT I, CAT II, CAT III, and CAT IV
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multimeter.
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ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).
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3) All of the following will shut off the high voltage to components and circuits EXCEPT
________.
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A) opening the driver's door
B) turning the ignition off
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C) disconnecting the 12-volt auxiliary battery
D) removing the main fuse, relay, or HV plug
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Answer: A
Page Ref: 9
Objective: 1-7 Describe the process for depowering the high-voltage system.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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,4) What can occur if a hybrid electric vehicle is pushed in the shop?
A) The HV battery pack can be damaged.
B) The tires will be locked unless the ignition is on.
C) Damage to the electronic controller can occur.
D) High voltage will be generated by the motor/generator as the wheels turn.
Answer: D
Page Ref: 10
Objective: 1-1 Explain the need for caution around the high-voltage system.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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5) When hoisting a hybrid or electric vehicle, what precautions must the technician follow to
ensure personal safety and avoid damage to the vehicle?




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A) Make sure the lift points do not contact HV cables.
B) Do not lift the vehicle by the battery case.




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C) Ensure the lift points are clear of battery cooling and refrigeration lines.
D) All of the answers are correct.




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Answer: D
Page Ref: 9


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Objective: 1-1 Explain the need for caution around the high-voltage system.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).
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6) When does the HV system NOT need to be depowered?
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A) Removing the HV battery pack
B) Performing routine service
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C) Replacing the HV cables
D) Replacing the HV air-conditioning compressor
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Answer: B
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Page Ref: 9
Objective: 1-7 Describe the process for depowering the high-voltage system.
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ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).
E




7) What will occur if the safety interlock system detects an open circuit on a hybrid vehicle?
A) If the engine is running, it will detect a fault and set a DTC. It also opens the power relays,
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turning off the "ready" light.
B) If the vehicle is moving, it will allow it to continue until a stop, and will disable the ICE.
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C) If the vehicle is not moving, it will disable the ICE immediately.
D) All of the answers are correct.
Answer: A
Page Ref: 8
Objective: 1-6 Explain the purpose of the safety interlock system.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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, 8) What precautions need to be taken to ensure the hybrid or electric vehicle work area is safe?
A) The area should be clean and dry.
B) The work area should be clearly marked.
C) No special precautions are needed.
D) The area should be clean and dry and clearly marked.
Answer: D
Page Ref: 3
Objective: 1-1 Explain the need for caution around the high-voltage system.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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9) What is the purpose of a megohmmeter or insulation tester?
A) Check for continuity between the HV cables and the vehicle chassis.




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B) Measure the resistance of connections in the LV system.
C) Measure the current flow through the HV cables.




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D) None of the answers is correct.
Answer: A




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Page Ref: 7
Objective: 1-1 Explain the need for caution around the high-voltage system.


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ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).
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10) What should be done if the HV rubber gloves inspection dates are found to be expired?
A) Use them anyway if they look OK.
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B) Use them if they pass the air test.
C) Send the gloves to a qualified inspection laboratory.
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D) Throw the gloves away.
Answer: C
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Page Ref: 4
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Objective: 1-5 Describe the process for testing rubber gloves before use.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).
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11) If the engine is not running, Technician A says that the high-voltage circuits are depowered.
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Technician B says that all high voltage wiring is orange in color. Which technician is correct?
A) Technician A only
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B) Technician B only
C) Both technicians A and B
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D) Neither technician A nor B
Answer: B
Page Ref: 3
Objective: 1-3 Explain the difference between yellow/blue and orange high-voltage cables.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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