Electric and Hybrid Electric Vehicles (1st Edition) by James D. Halderman – Complete Test Bank

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Electric and Hybrid Electric Vehicles, 1e (Halderman)




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Chapter 1 Hybrid and Electric Vehicle Safety




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1) Rubber gloves should be worn whenever working on or near the high-voltage circuits or




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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-




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voltage rubber gloves. Which technician is correct?




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A) Technician A only
B) Technician B only
C) Both technicians A and B




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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.




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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
D) both high energy and high voltage
Answer: D
Page Ref: 7
Objective: 1-2 Describe the differences between a CAT I, CAT II, CAT III, and CAT IV
multimeter.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).

3) All of the following will shut off the high voltage to components and circuits EXCEPT
________.
A) opening the driver's door
B) turning the ignition off
C) disconnecting the 12-volt auxiliary battery
D) removing the main fuse, relay, or HV plug
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?




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A) The HV battery pack can be damaged.




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B) The tires will be locked unless the ignition is on.
C) Damage to the electronic controller can occur.




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D) High voltage will be generated by the motor/generator as the wheels turn.
Answer: D




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Page Ref: 10




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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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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?
A) Removing the HV battery pack
B) Performing routine service
C) Replacing the HV cables
D) Replacing the HV air-conditioning compressor
Answer: B
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).

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,
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.
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?




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A) The area should be clean and dry.




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B) The work area should be clearly marked.
C) No special precautions are needed.




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D) The area should be clean and dry and clearly marked.
Answer: D




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Page Ref: 3




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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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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).

10) What should be done if the HV rubber gloves inspection dates are found to be expired?




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A) Use them anyway if they look OK.
B) Use them if they pass the air test.
C) Send the gloves to a qualified inspection laboratory.
D) Throw the gloves away.
Answer: C
Page Ref: 4
Objective: 1-5 Describe the process for testing rubber gloves before use.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).

11) If the engine is not running, Technician A says that the high-voltage circuits are depowered.
Technician B says that all high voltage wiring is orange in color. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
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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12) How often should linesman's gloves be inspected by a qualified testing lab?




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A) Every six months




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B) Daily
C) Monthly




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D) Yearly
Answer: A




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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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13) The high voltage cables ________.
A) are orange in color




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B) are energized during events where the ignition switch is in the "on" position
C) Both A and B




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D) Neither A nor B
Answer: C




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Page Ref: 2-3
Objective: 1-3 Explain the difference between yellow/blue and orange high-voltage cables.




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

14) What is true regarding protective gloves worn during HV system service?




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A) Rubber gloves should be checked for leaks before each use
B) Leather gloves are worn over the rubber gloves to protect the rubber from damage
C) Both A and B
D) Neither A nor B
Answer: C
Page Ref: 5
Objective: 1-4 List the types of personal protective equipment.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).

15) Technician A says that CAT I meter leads may be used to test HV system components as
long as the DMM itself is rated CAT III. Technician B says that CAT IV test leads are clamp-on
inductive type leads. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
Answer: B
Page Ref: 7
Objective: 1-2 Describe the differences between a CAT I, CAT II, CAT III, and CAT IV
multimeter.
ASE: L3D Prepare for ASE L3 certification test section "D" (Power Electronics).




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