Question 1

Why is the air valve opening metered in a brake booster?

Accepted Answer

The air valve is metered to prevent full brake boost and brake lockup during light braking.

Question 2

Describe the operation of servo action.

Accepted Answer

Servo action uses the force from one operating member to increase the force applied to another operating member. In drum brake systems, each brake shoe receives equal force from the wheel cylinder to push the shoe out against the drum.

Question 3

What type of solenoid does a RWAL system use to control the rear brakes?

Accepted Answer

A RWAL system uses an isolation/dump solenoid to control the rear brakes.

Question 4

Traction control is meant to assist on slick road surfaces and in mud-bogging.

Accepted Answer

A) True 
 B)False

Question 5

What type of valve controls brake pressure to the rear brakes depending on vehicle load?

Accepted Answer

A load-sensing proportioning v

Question 6

What type of brake uses a wheel cylinder?

Accepted Answer

Drum brake

Question 7

Bearing races serve the same purpose as the journal.

Accepted Answer

A) True 
 B)False

Question 8

What type of caliper has at least four pistons?

Accepted Answer

A fixed ca

Question 9

Two technicians are discussing parking brakes. Technician A says that a parking brake can be used to stop a vehicle rather than using the brake pedal. Technician B says that the parking brake is only meant to hold a vehicle stationary after the vehicle is stopped by the main braking system. Who is correct?

Accepted Answer

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

Question 10

What is the metal portion of a brake shoe normally called?

Accepted Answer

The metal portion of

Question 11

Describe Pascal's Law in words.

Accepted Answer

Pascal's Law states that fluid

Question 12

An output piston that is larger than the input piston can increase the input force.

Accepted Answer

A) True 
 B)False

Question 13

What characteristic is true of traction control systems?

Accepted Answer

A)  Traction control is a method of redirecting power from a spinning drive wheel. 
B)  Traction control does not include electronics. 
C)  Traction control was designed for hard acceleration from a stop. 
D)  Traction control was designed for competitive driving. 
A)  Traction control is a method of redirecting power from a spinning drive wheel. 
B)  Traction control does not include electronics. 
C)  Traction control was designed for hard acceleration from a stop. 
D)  Traction control was designed for competitive driving.

Question 14

What component contacts the disc brake pad in order to slow a vehicle?

Accepted Answer

A rotor contacts the

Question 15

Two technicians are discussing power boosters. Technician A says that vacuum is the only source of power for a booster. Technician B says that hydro-boost is powered by the vehicle's power steering pump. Who is correct?

Accepted Answer

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

Question 16

Two technicians are discussing disc brakes. Technician A says that disc brake pads are much smaller than drum brake shoes. Technician B says that more hydraulic force is needed to stop a disc brake vehicle. Who is correct?

Accepted Answer

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

Question 17

Brake fluid should have a minimum boiling point of 200 degrees Fahrenheit.

Accepted Answer

A) True 
 B)False

Question 18

What is the purpose of a bushing?

Accepted Answer

Bushings are the inner surface

Question 19

Two technicians are discussing pressure controllers. Technician A says that RWAL systems have only one solenoid for each wheel or axle. Technician B says the isolation/dump valve for a RWAL system may be referred to as the RWAL accumulator. Who is correct?

Accepted Answer

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

Question 20

What type of brake system has been required since 1967?

Accepted Answer

A)  Single piston 
B)  Dual or split 
C)  Front/rear 
D)  Reservoir 
A)  Single piston 
B)  Dual or split 
C)  Front/rear 
D)  Reservoir

Why is the air valve opening metered in a brake booster?

Describe the operation of servo action.

What type of solenoid does a RWAL system use to control the rear brakes?

Traction control is meant to assist on slick road surfaces and in mud-bogging.

What type of valve controls brake pressure to the rear brakes depending on vehicle load?

What type of brake uses a wheel cylinder?

Bearing races serve the same purpose as the journal.

What type of caliper has at least four pistons?

What is the metal portion of a brake shoe normally called?

Describe Pascal's Law in words.

An output piston that is larger than the input piston can increase the input force.

What characteristic is true of traction control systems?

What component contacts the disc brake pad in order to slow a vehicle?

Two technicians are discussing power boosters. Technician A says that vacuum is the only source of power for a booster. Technician B says that hydro-boost is powered by the vehicle's power steering pump. Who is correct?

Two technicians are discussing disc brakes. Technician A says that disc brake pads are much smaller than drum brake shoes. Technician B says that more hydraulic force is needed to stop a disc brake vehicle. Who is correct?

Brake fluid should have a minimum boiling point of 200 degrees Fahrenheit.

What is the purpose of a bushing?

Two technicians are discussing pressure controllers. Technician A says that RWAL systems have only one solenoid for each wheel or axle. Technician B says the isolation/dump valve for a RWAL system may be referred to as the RWAL accumulator. Who is correct?

What type of brake system has been required since 1967?

Introduction to the Automotive Industry

Introduction to the Automobile

Automotive Tools and Equipment

Fasteners and Measurements

Electrical and Electronic Systems

Accessory Lighting and Electrical Systems

Engine Systems Operation

Transmissions and Driveline Systems

Steering and Suspension Systems

Heating Ventilation and Air Conditioning Systems

Engine Theories and Performance Systems

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Exam 10: Brakes Systems

Why is the air valve opening metered in a brake booster?

Describe the operation of servo action.

What type of solenoid does a RWAL system use to control the rear brakes?

Traction control is meant to assist on slick road surfaces and in mud-bogging.

What type of valve controls brake pressure to the rear brakes depending on vehicle load?

What type of brake uses a wheel cylinder?

Bearing races serve the same purpose as the journal.

What type of caliper has at least four pistons?

What is the metal portion of a brake shoe normally called?

Describe Pascal's Law in words.

An output piston that is larger than the input piston can increase the input force.

What characteristic is true of traction control systems?

What component contacts the disc brake pad in order to slow a vehicle?

Two technicians are discussing power boosters. Technician A says that vacuum is the only source of power for a booster. Technician B says that hydro-boost is powered by the vehicle's power steering pump. Who is correct?

Two technicians are discussing disc brakes. Technician A says that disc brake pads are much smaller than drum brake shoes. Technician B says that more hydraulic force is needed to stop a disc brake vehicle. Who is correct?

Brake fluid should have a minimum boiling point of 200 degrees Fahrenheit.

What is the purpose of a bushing?

Two technicians are discussing pressure controllers. Technician A says that RWAL systems have only one solenoid for each wheel or axle. Technician B says the isolation/dump valve for a RWAL system may be referred to as the RWAL accumulator. Who is correct?

What type of brake system has been required since 1967?

Introduction to the Automotive Industry

Introduction to the Automobile

Automotive Tools and Equipment

Fasteners and Measurements

Electrical and Electronic Systems

Accessory Lighting and Electrical Systems

Engine Systems Operation

Transmissions and Driveline Systems

Steering and Suspension Systems

Heating Ventilation and Air Conditioning Systems

Engine Theories and Performance Systems

Filters