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| By Atahcpss

Atahcpss

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Quizzes Created: 39 | Total Attempts: 141,785

Questions: 10 | Attempts: 1,666 | Updated: Mar 21, 2023

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Assessment for EBC Homework

Questions and Answers

1.

An ABS braking system controls wheel lock-up by:
- A.
  
  changing pedal mechanical advantage.
- B.
  
  Building pressure in the master cylinder reservoir.
- C.
  
  Controlling pressure to the locking wheel.
- D.
  
  Reducing volume in the master cylinder reservoir.
Correct Answer
C. Controlling pressure to the locking wheel.

Explanation
The module applies and releases the brakes in accordance with the electrical impulses that it receives from the wheel sensor.

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2.

During an ABS application and the rapid changes in pressure, some systems allow all of the following EXCEPT:
- A.
  
  pulsations to be felt at the brake pedal.
- B.
  
  The brake pedal to get spongy.
- C.
  
  The brake pedal to creep down a little further.
- D.
  
  The brake pedal to rise up slightly.
Correct Answer
B. The brake pedal to get spongy.

Explanation
During an ABS application, the brake pedal can; pulsate, creep down, and if it gets low enough, it can be forced upward. In each position, the pedal should be firm even though it is moving.

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3.

The wheel sensors on an anti-lock braking system relay information to the control unit on:
- A.
  
  Vehicle retarding force.
- B.
  
  wheel speed, deceleration, and percentage slip.
- C.
  
  vehicle stopping distance.
- D.
  
  brake application force.
Correct Answer
B. wheel speed, deceleration, and percentage slip.

Explanation
Anti-lock braking systems (ABS) use speed sensor information to monitor wheel speed, deceleration, and percent of slip.

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4.

Two technicians are discussing a 4-channel ABS system. Technician A says that means the ABS system monitors all four wheels. Technician B says that means the ABS system uses four separate master cylinders. Who is correct?
- A.
  
  Technician A only.
- B.
  
  Technician B only.
- C.
  
  Both Technician A & Technician B
- D.
  
  Neither Technician A or Technician B`
Correct Answer
A. Technician A only.

Explanation
In a four-channel ABS system, the hydraulic control unit controls brake pressure to all four wheels.

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5.

A vehicle equipped with ABS has a pedal that pulsates only on hard stops. Technician A says that this is normal operation. Technician B says that this could indicate that the brake drums are out of round. Who is correct?
- A.
  
  Technician A.
- B.
  
  Technician B.
- C.
  
  Both Technician A and Technician.
- D.
  
  Neither Technician A nor Technician B.
Correct Answer
C. Both Technician A and Technician.

Explanation
Technician A is correct because as the ABS operates the triggering of the "on-off-on" of the wheel units can be felt through the system at the pedal on hard application. Since the brakes only pulse on hard application, it is not likely an out-of-round drum.

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6.

Which is best for washing newly resurfaced rotors?
- A.
  
  Glass cleaner
- B.
  
  Non-chlorinated brake cleaner
- C.
  
  Chlorinated brake cleaner
- D.
  
  Soap and warm water
Correct Answer
D. Soap and warm water

Explanation
Soap and water is the best way to remove rotor machining, micro-dust from the rotor surface.

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7.

Pro-Cut lathes provide a non-directional finish without performing additional swirl sanding.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The pro-cut provides a non-directional cut, allowing the technician to forgo manually creating the same finish.

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8.

You should be able to successfully refinish most rotors in _____ cuts.
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
Correct Answer
A. 1

Explanation
Most rotors should be successfully refinished with 1 cut.

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9.

Maximum cutting depth per side on a Pro-Cut lathe is _____ per side.
- A.
  
  0.007''
- B.
  
  0.004''
- C.
  
  0.010''
- D.
  
  0.020''
Correct Answer
D. 0.020''

Explanation
The maximum cutting depth is 20/1000''.

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10.

Minimum cutting depth per side on a rotor with a Pro-Cut lathe is ______________.
- A.
  
  0.001''
- B.
  
  0.004''
- C.
  
  0.010''
- D.
  
  0.020''
Correct Answer
B. 0.004''

Explanation
The minimum cutting depth is 4/1000''.

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Jan 04, 2015

Quiz Created by
Atahcpss

Pop Quiz

An ABS braking system controls wheel lock-up by:

During an ABS application and the rapid changes in pressure, some systems allow all of the following EXCEPT:

The wheel sensors on an anti-lock braking system relay information to the control unit on:

Two technicians are discussing a 4-channel ABS system. Technician A says that means the ABS system monitors all four wheels. Technician B says that means the ABS system uses four separate master cylinders. Who is correct?

A vehicle equipped with ABS has a pedal that pulsates only on hard stops. Technician A says that this is normal operation. Technician B says that this could indicate that the brake drums are out of round. Who is correct?

Which is best for washing newly resurfaced rotors?

Pro-Cut lathes provide a non-directional finish without performing additional swirl sanding.

You should be able to successfully refinish most rotors in _____ cuts.

Maximum cutting depth per side on a Pro-Cut lathe is _____ per side.

Minimum cutting depth per side on a rotor with a Pro-Cut lathe is ______________.