Deck 21: Lighting and Electrical Accessories

Question 1

Smart keys are being discussed.Technician A says a remote key fob may also be a smart key used with "push-to-start" systems.Technician B says some smart keys may be used as part of a vehicle's antitheft system.Who is correct ?

A)A only
B)B only
C)both A and B
D)neither A nor B

Answer 1

C

Question 2

________________ are used to lock and unlock the door latch.

A)Solenoids
B)Reversible DC electric motors
C)Thermo-electric expansion capsules
D)all answers are correct

Answer 2

B

Question 3

Instrument panel illumination is controlled through the headlamp switch.

Answer 3

True

Question 4

The master switch for a power window provides ______.

A)electrical power for the window motor
B)the ground for the window motor
C)Both A and B
D)Neither A nor B

Question 5

The service engine light illuminates when the engine control module determines a fault in the __________ ___________ system.

Question 6

Once used on all vehicles, sealed beams headlights have been replaced by ____________________ bulbs.

Question 7

Which of the following is NOT a type of headlamp used on motor vehicles?

A)halogen insert bulb
B)fluorescent
C)LED lights
D)high-intensity discharge (HID)

Question 8

Tire pressure monitoring systems (TPMSs) have been required on all vehicles since 2006.

Question 9

Many vehicles have built-in ____________ levels for headlight aim adjustment.

Question 10

In most vehicles, the oil pressure sending unit completes the ground circuit for the light if the oil pressure falls below a preset limit, typically 10 psi.

Question 11

Power window switch activity on a vehicle with a BCM can be monitored using a __________ __________.

Question 12

An incandescent bulb provides light by heating a filament until it glows.

Question 13

The term parking lamps is used to describe ______ that are operated by the headlamp switch.

A)front lamps
B)side marking lamps
C)rear lamps
D)all answers are correct

Question 14

All vehicles use an electronic flasher unit.

Question 15

Technician A says power window motors are AC motors, and that replacing such a motor does not require removal of the door panel.Technician B says that power window motors are DC motors, and that replacing a power window motor requires removing the door panel.Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 16

Technician A uses a powered test light to check a light bulb.Technician B uses an ohmmeter.Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 17

Power locks are being discussed.Technician A says that power door locks operate in a similar manner to power windows.Technician B says that a permanent magnet motor is used to lock and unlock the door latch.Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 18

Light emitting diodes can be checked with a (an) ________.

A)rheostat
B)electromechanical flasher
C)digital multimeter
D)ohmmeter

Question 19

Headlamp circuits consist of which of the following?

A)headlamp switch
B)relays
C)dimmer switch
D)all answers are correct

Question 20

Power window motors spin clockwise or counterclockwise, depending on the ____________________ of the power and ground supplied to the motor.