Question 1

When the oil pressure drops to between 3 and 7 psi, the oil pressure lamp lights by ________.

Accepted Answer

A) Grounding the circuit 
B) Shorting the circuit 
C) Opening the circuit 
D) Conducting current to dash lamp by oil 
A) Grounding the circuit 
B) Shorting the circuit 
C) Opening the circuit 
D) Conducting current to dash lamp by oil A

Question 2

A vehicle with a lane departure warning system uses sensors or cameras to monitor ________.

Accepted Answer

A) Roadside tree density 
B) Road surface roughness 
C) Road line markings 
D) Vehicles behind and in front 
A) Roadside tree density 
B) Road surface roughness 
C) Road line markings 
D) Vehicles behind and in front C

Question 3

What is the meaning of this symbol?

Accepted Answer

A) Low oil pressure 
B) Loose oil filler cap 
C) Doors need lubrication 
D) Low oil temperature 
A) Low oil pressure 
B) Loose oil filler cap 
C) Doors need lubrication 
D) Low oil temperature A

Question 4

The parking brake switch is in a circuit that illuminates a ________ color light in the instrument cluster.

Accepted Answer

A) Green 
B) Red 
C) Amber 
D) None of these 
A) Green 
B) Red 
C) Amber 
D) None of these

Question 5

A brake warning lamp on the dash remains on whenever the ignition is on. If the wire to the pressure differential switch (usually a part of the combination valve or built into the master cylinder) is unplugged, the dash lamp goes out. Technician A says that this is an indication of a fault in the brake hydraulic system. Technician B says the problem is probably due to a stuck parking brake cable switch. Who is right?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 6

What is the meaning of this symbol?

Accepted Answer

A) ABS system fault 
B) Brakes noisy 
C) Radio too loud 
D) Braking system fault 
A) ABS system fault 
B) Brakes noisy 
C) Radio too loud 
D) Braking system fault

Question 7

The OnStar system operates by using GPS data and ________.

Accepted Answer

A) Cellular telephone service 
B) Satellite telephone data 
C) Both A and B 
D) Neither A nor B 
A) Cellular telephone service 
B) Satellite telephone data 
C) Both A and B 
D) Neither A nor B

Question 8

How does changing tire diameter affect the speedometer reading?

Accepted Answer

A) A smaller diameter tire causes the speedometer to read slower than the actual speed and less than the actual mileage on the odometer 
B) A larger diameter tire causes the speedometer to read slower than the actual speed and more than the actual mileage on the odometer 
C) A smaller diameter tire causes the speedometer to read faster than actual speed and more than actual mileage on the odometer 
D) A larger diameter tire causes the speedometer to read faster than the actual speed and more than the actual mileage on the odometer 
A) A smaller diameter tire causes the speedometer to read slower than the actual speed and less than the actual mileage on the odometer 
B) A larger diameter tire causes the speedometer to read slower than the actual speed and more than the actual mileage on the odometer 
C) A smaller diameter tire causes the speedometer to read faster than actual speed and more than actual mileage on the odometer 
D) A larger diameter tire causes the speedometer to read faster than the actual speed and more than the actual mileage on the odometer

Question 9

The light indicating a problem with the ABS system is colored ________.

Accepted Answer

A) Green 
B) Red 
C) Amber 
D) None of these 
A) Green 
B) Red 
C) Amber 
D) None of these

Question 10

Which of these electronic display devices uses a fluid and polarized glass to create numbers and characters?

Accepted Answer

A) CRT 
B) VFD 
C) LCD 
D) LED 
A) CRT 
B) VFD 
C) LCD 
D) LED

Question 11

The sending unit in a typical fuel gauge includes a ________.

Accepted Answer

A) Diaphragm 
B) Float 
C) Zener diode 
D) Fixed resistor 
A) Diaphragm 
B) Float 
C) Zener diode 
D) Fixed resistor

Question 12

Technician A says that most digital and analog (needle-type) dash gauges use variable resistance sensors. Technician B says that permanent-magnet (PM) generators produce an AC signal and are used for vehicle speed and wheel speed sensors. Who is right?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 13

Most vehicles today use a ________ for an input to the engine temperature display.

Accepted Answer

A) Coolant range sensor 
B) Coolant temperature sending unit 
C) ECT sensor 
D) None of these 
A) Coolant range sensor 
B) Coolant temperature sending unit 
C) ECT sensor 
D) None of these

Question 14

Which of these is a type of electric motor designed to rotate in small increments based on the signal from a vehicle computer?

Accepted Answer

A) Compound motor 
B) Stopper motor 
C) Shunt control motor 
D) Stepper motor 
A) Compound motor 
B) Stopper motor 
C) Shunt control motor 
D) Stepper motor

Question 15

Which of these is a supplemental display that projects the vehicle speed and sometimes other data, such as turn signal information, onto the windshield?

Accepted Answer

A) Driver Information Center (DI
C)  
B) Instrument Panel Display (IP
D)  
C) Road Monitor 
D) Head-up display (HU
D)  
A) Driver Information Center (DI
C)  
B) Instrument Panel Display (IP
D)  
C) Road Monitor 
D) Head-up display (HU
D)

Question 16

Two technicians are discussing a fuel gauge on a General motors vehicle. Technician A says that if the ground wire connection to fuel tank sending unit becomes rusty or corroded, the fuel gauge will read higher than normal. Technician B says that when the power lead to the fuel tank sending unit is disconnected from the tank unit and grounded (ignition on), the fuel gauge should go to empty. Who is right?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 17

A customer complains that every time the lights are turned on in the vehicle, the dash display dims. Which of these is the MOST likely cause which of these conditions?

Accepted Answer

A) Normal behavior for LED (Light Emitting Diode) dash displays 
B) Normal behavior for VTF (Vacuum Tube Fluorescent) dash display 
C) Feedback problem from a short-to-voltage between headlights and dash display 
D) Poor ground in lighting circuit causing a voltage drop to dash lamps 
A) Normal behavior for LED (Light Emitting Diode) dash displays 
B) Normal behavior for VTF (Vacuum Tube Fluorescent) dash display 
C) Feedback problem from a short-to-voltage between headlights and dash display 
D) Poor ground in lighting circuit causing a voltage drop to dash lamps

Question 18

An oil pressure warning lamp is usually controlled by which of these devices?

Accepted Answer

A) Ground sensor 
B) Sensor unit 
C) Voltage drop 
D) Manual switch 
A) Ground sensor 
B) Sensor unit 
C) Voltage drop 
D) Manual switch

Question 19

What is the meaning of this symbol?

Accepted Answer

A) Coolant freeze protection too low 
B) Loose radiator cap 
C) High water ahead 
D) Coolant temperature too high 
A) Coolant freeze protection too low 
B) Loose radiator cap 
C) High water ahead 
D) Coolant temperature too high

Question 20

Electronic indicators alert the driver when ________.

Accepted Answer

A) Traction control is turned off 
B) A fault is detected in the airbag (SRS) system 
C) Both A and B 
D) Neither A nor B 
A) Traction control is turned off 
B) A fault is detected in the airbag (SRS) system 
C) Both A and B 
D) Neither A nor B

Exam 57: Driver Information and Navigation Systems

When the oil pressure drops to between 3 and 7 psi, the oil pressure lamp lights by ________.

A vehicle with a lane departure warning system uses sensors or cameras to monitor ________.

What is the meaning of this symbol?

The parking brake switch is in a circuit that illuminates a ________ color light in the instrument cluster.

What is the meaning of this symbol?

The OnStar system operates by using GPS data and ________.

How does changing tire diameter affect the speedometer reading?

The light indicating a problem with the ABS system is colored ________.

Which of these electronic display devices uses a fluid and polarized glass to create numbers and characters?

The sending unit in a typical fuel gauge includes a ________.

Technician A says that most digital and analog (needle-type) dash gauges use variable resistance sensors. Technician B says that permanent-magnet (PM) generators produce an AC signal and are used for vehicle speed and wheel speed sensors. Who is right?

Most vehicles today use a ________ for an input to the engine temperature display.

Which of these is a type of electric motor designed to rotate in small increments based on the signal from a vehicle computer?

Which of these is a supplemental display that projects the vehicle speed and sometimes other data, such as turn signal information, onto the windshield?

A customer complains that every time the lights are turned on in the vehicle, the dash display dims. Which of these is the MOST likely cause which of these conditions?

An oil pressure warning lamp is usually controlled by which of these devices?

What is the meaning of this symbol?

Electronic indicators alert the driver when ________.

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