Question 1

Which of the following components is common to all vehicles equipped with ABS?

Accepted Answer

A)  Pressure relief valves
B)  Hydraulic control unit
C)  Combination valve assembly
D)  Pedal travel sensorE) A) and B)
F) A) and D)

Question 2

Technician A says that ABS-equipped vehicles can stop quickly and without skidding on all road surfaces even if covered with ice. Technician B says that steering is possible during an ABS stop. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) All of the above
F) B) and D)

Question 3

Which of the following is NOT a function of an antilock brake system (ABS) ?

Accepted Answer

A)  Helps maintain vehicle control while braking
B)  Maintain directional stability on slippery surfaces
C)  Allows drivers to drive more closely to the vehicle in front
D)  Allow elimination of the proportioning valveE) B) and C)
F) None of the above

Question 4

Technician A says an ABS antilock system decreases pressure to the hydraulic brake circuits on wheels with excessive wheel slippage during deceleration. Technician B says a traction control system increases pressure to the hydraulic brake circuit on wheels with excessive wheel slippage during acceleration. Which technician is correct?

Accepted Answer

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

Question 5

The maximum traction between a tire and the road occurs when the tire is ________.

Accepted Answer

A)  Locked and skidding
B)  Slipping 10% to 20%
C)  Slipping 80% to 90%
D)  Rotating freelyE) A) and C)
F) None of the above B

Question 6

Technician A says that some wheel speed sensors are enclosed in a wheel bearing assembly. Technician B says that some wheel speed sensors are exposed to possible damage from road debris. Which technician is correct?

Accepted Answer

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

Question 7

Which type of antilock braking system (ABS)  requires the use of four wheel speed sensors?

Accepted Answer

A)  Four channel
B)  Two channel
C)  Three channel
D)  One channelE) All of the above
F) B) and D)

Question 8

The ABS computer uses the ________ signal from a wheel speed sensor.

Accepted Answer

A)  Resistance
B)  Electro-magnetic
C)  Voltage
D)  FrequencyE) A) and B)
F) None of the above

Question 9

Technician A says an antilock brake system will always produce the shortest possible stops. Technician B says when braking on loose gravel or dirt, a system that can lock the wheels produces shorter stops than an antilock system. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) None of the above
F) A) and C)

Question 10

A customer wanted the ABS checked because of tire chirp noise during hard braking. Technician A says that the speed sensors may be defective. Technician B says that tire chirp is normal during an ABS stop on dry pavement. Which technician is correct?

Accepted Answer

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

Question 11

Magnetic wheel speed sensors are being discussed. Technician A says that the wheel speed sensors are magnetic. Technician B says that the toothed sensor ring is magnetic. Which technician is correct?

Accepted Answer

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

Question 12

Technician A says that most ABS units are non-integral.. Technician B says that the ABS is disabled (does not function)  below about 5 mph (8 km/h) . Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and D)
F) All of the above

Question 13

The standard ABS control strategy uses a three step cycle. These are ________.

Accepted Answer

A)  ABS on, ABS off, and ABS hunting
B)  Pressure maintain, pressure hold, and pressure accumulate
C)  Pressure hold, pressure decrease, and pressure increase
D)  Slipping, holding, and increasingE) A) and C)
F) C) and D)

Question 14

What type of antilock brake system is illustrated?

Accepted Answer

A)  RWAL
B)  Linear
C)  Non-integral
D)  IntegralE) B) and C)
F) A) and D)

Question 15

Before servicing the brakes in a typical integral ABS, the technician should pump the brake pedal ________.

Accepted Answer

A)  5 to 10 times
B)  3 or 4 times
C)  2 or 3 times
D)  25 times or moreE) B) and D)
F) A) and D)

Question 16

Which of these is a 3 channel antilock brake system?

Accepted Answer

A)  A
B)  B
C)  C
D)  All of these are 4 channel systemsE) B) and D)
F) C) and D)

Question 17

Two technicians are discussing ABS wheel speed sensors. Technician A says that some ABS systems use a sensor located in the rear-axle pinion gear area. Technician B says that all ABS systems use a wheel speed sensor at each wheel. Which technician is correct?

Accepted Answer

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

Question 18

Which antilock component creates current frequencies that change with wheel rotational speed?

Accepted Answer

A)  Safety circuitry
B)  Wheel speed sensors
C)  Modulator assembly
D)  Electronic control unitE) A) and B)
F) None of the above B

Question 19

The faster a wheel rotates, the higher the frequency produced by a wheel speed sensor.

Accepted Answer

A) True 
 B)False

Question 20

Technician A says that the ABS system may not result in shorter stopping distance compared to brakes without ABS. Technician B says that a pulsating brake pedal during normal braking is a characteristic feature of most ABS-equipped vehicles. Which technician is correct?

Accepted Answer

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

Exam 106: Abs Components and Operation

Which of the following components is common to all vehicles equipped with ABS?

Correct Answer
verified

Technician A says that ABS-equipped vehicles can stop quickly and without skidding on all road surfaces even if covered with ice. Technician B says that steering is possible during an ABS stop. Which technician is correct?

Correct Answer
verified

Which of the following is NOT a function of an antilock brake system (ABS) ?

Correct Answer
verified

Correct Answer
verified

The maximum traction between a tire and the road occurs when the tire is ________.

Correct Answer
verified
B

Technician A says that some wheel speed sensors are enclosed in a wheel bearing assembly. Technician B says that some wheel speed sensors are exposed to possible damage from road debris. Which technician is correct?

Correct Answer
verified

Which type of antilock braking system (ABS) requires the use of four wheel speed sensors?

Correct Answer
verified

The ABS computer uses the ________ signal from a wheel speed sensor.

Correct Answer
verified

Technician A says an antilock brake system will always produce the shortest possible stops. Technician B says when braking on loose gravel or dirt, a system that can lock the wheels produces shorter stops than an antilock system. Which technician is correct?

Correct Answer
verified

A customer wanted the ABS checked because of tire chirp noise during hard braking. Technician A says that the speed sensors may be defective. Technician B says that tire chirp is normal during an ABS stop on dry pavement. Which technician is correct?

Correct Answer
verified

Magnetic wheel speed sensors are being discussed. Technician A says that the wheel speed sensors are magnetic. Technician B says that the toothed sensor ring is magnetic. Which technician is correct?

Correct Answer
verified

Technician A says that most ABS units are non-integral.. Technician B says that the ABS is disabled (does not function) below about 5 mph (8 km/h) . Which technician is correct?

Correct Answer
verified

The standard ABS control strategy uses a three step cycle. These are ________.

Correct Answer
verified

What type of antilock brake system is illustrated?

Correct Answer
verified

Before servicing the brakes in a typical integral ABS, the technician should pump the brake pedal ________.

Correct Answer
verified

Which of these is a 3 channel antilock brake system?

Correct Answer
verified

Two technicians are discussing ABS wheel speed sensors. Technician A says that some ABS systems use a sensor located in the rear-axle pinion gear area. Technician B says that all ABS systems use a wheel speed sensor at each wheel. Which technician is correct?

Correct Answer
verified

Which antilock component creates current frequencies that change with wheel rotational speed?

Correct Answer
verified
B

The faster a wheel rotates, the higher the frequency produced by a wheel speed sensor.

Correct Answer
verified

Technician A says that the ABS system may not result in shorter stopping distance compared to brakes without ABS. Technician B says that a pulsating brake pedal during normal braking is a characteristic feature of most ABS-equipped vehicles. Which technician is correct?

Correct Answer
verified
C

Exam 106: Abs Components and Operation

Which of the following components is common to all vehicles equipped with ABS?

Correct AnswerverifiedShow Answer

Technician A says that ABS-equipped vehicles can stop quickly and without skidding on all road surfaces even if covered with ice. Technician B says that steering is possible during an ABS stop. Which technician is correct?

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of an antilock brake system (ABS) ?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The maximum traction between a tire and the road occurs when the tire is ________.

Correct AnswerverifiedB

Technician A says that some wheel speed sensors are enclosed in a wheel bearing assembly. Technician B says that some wheel speed sensors are exposed to possible damage from road debris. Which technician is correct?

Correct AnswerverifiedShow Answer

Which type of antilock braking system (ABS) requires the use of four wheel speed sensors?

Correct AnswerverifiedShow Answer

The ABS computer uses the ________ signal from a wheel speed sensor.

Correct AnswerverifiedShow Answer

Technician A says an antilock brake system will always produce the shortest possible stops. Technician B says when braking on loose gravel or dirt, a system that can lock the wheels produces shorter stops than an antilock system. Which technician is correct?

Correct AnswerverifiedShow Answer

A customer wanted the ABS checked because of tire chirp noise during hard braking. Technician A says that the speed sensors may be defective. Technician B says that tire chirp is normal during an ABS stop on dry pavement. Which technician is correct?

Correct AnswerverifiedShow Answer

Magnetic wheel speed sensors are being discussed. Technician A says that the wheel speed sensors are magnetic. Technician B says that the toothed sensor ring is magnetic. Which technician is correct?

Correct AnswerverifiedShow Answer

Technician A says that most ABS units are non-integral.. Technician B says that the ABS is disabled (does not function) below about 5 mph (8 km/h) . Which technician is correct?

Correct AnswerverifiedShow Answer

The standard ABS control strategy uses a three step cycle. These are ________.

Correct AnswerverifiedShow Answer

What type of antilock brake system is illustrated?

Correct AnswerverifiedShow Answer

Before servicing the brakes in a typical integral ABS, the technician should pump the brake pedal ________.

Correct AnswerverifiedShow Answer

Which of these is a 3 channel antilock brake system?

Correct AnswerverifiedShow Answer

Two technicians are discussing ABS wheel speed sensors. Technician A says that some ABS systems use a sensor located in the rear-axle pinion gear area. Technician B says that all ABS systems use a wheel speed sensor at each wheel. Which technician is correct?

Correct AnswerverifiedShow Answer

Which antilock component creates current frequencies that change with wheel rotational speed?

Correct AnswerverifiedB

The faster a wheel rotates, the higher the frequency produced by a wheel speed sensor.

Correct AnswerverifiedShow Answer

Technician A says that the ABS system may not result in shorter stopping distance compared to brakes without ABS. Technician B says that a pulsating brake pedal during normal braking is a characteristic feature of most ABS-equipped vehicles. Which technician is correct?

Correct AnswerverifiedC

Correct Answer
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B

Correct Answer
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B

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C