# Technician A says that an out-of-round drum can cause a pulsating brake pedal. Technician B says that an out-of-round drum can cause the brakes to grab. Who is correct? Technician A only Technician B only Both A and B Neither A nor B

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

### Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

#### Solutions

Chapter
Section
Chapter 51, Problem 1ASRQ
Textbook Problem

## Technician A says that an out-of-round drum can cause a pulsating brake pedal. Technician B says that an out-of-round drum can cause the brakes to grab. Who is correct? Technician A only Technician B onlyBoth A and BNeither A nor B

Expert Solution
To determine

The correct technician among the two i.e. A and B who are discussing on the out-of-round drum.

### Explanation of Solution

The statement given by technician A is correct as the drum will be heating and cooling repeatedly in the situation of brake operation which leads to out-of-round situation. This out-of-round situation changes its shape to an oval one and such drums then causes the pulsating distortion. Hence, technician A is correct...

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