SOS Mechanic Certification Brakes Automotive
Brake Systems Exam Questions and CORRECT
Answers
Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive
wheel?
Sealed non-serviceable
to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4
times, hold the brake pedal depressed, and start the engine. the brake pedal should:
drop slightly and remain firm
You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary
shoe lining is:
Smaller and goes towards the front of the car.
A cracked or torn vacuum diaphragm in a brake power booster would most likely cause:
a hard pedal feel requiring very high pedal effort to stop
A mechanic finds gear lube inside both rear brake drums on a rear wheel drive vehicle. What is the
most likely cause of this problem?
A plugged axle
Which of the following incorrect service procedures will cause brake lock-up?
master cylinder push rod adjusted too long
, Which of the following describes the proper way to depressurized an ABS system?
Pump the brake pedal at least 25 times (or more, depending on the manufacturer's
recommendation) with the ignition off.
The rear brakes are dragging after having new linings installed and the drums machined. the most
likely cause is the:
technician use the parking brake to adjust shoes and the cable is stuck
When turning brake drums:
use a dampening strap to reduce chatter
Which of the following is NOT a necessary drum brake measurement?
run-out
On a 3-channel system, which wheels are on the same circuit?
both rear wheels
One way to test an ABS wheel speed signal is to use _____ on your digital multimeter.
AC volts
The key input for the ABS control module comes from the:
wheel speed sensors
ABS speed sensor and sensor rings:
should not be hammered or tapped on and should always be replaced as a matched set
Brake Systems Exam Questions and CORRECT
Answers
Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive
wheel?
Sealed non-serviceable
to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4
times, hold the brake pedal depressed, and start the engine. the brake pedal should:
drop slightly and remain firm
You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary
shoe lining is:
Smaller and goes towards the front of the car.
A cracked or torn vacuum diaphragm in a brake power booster would most likely cause:
a hard pedal feel requiring very high pedal effort to stop
A mechanic finds gear lube inside both rear brake drums on a rear wheel drive vehicle. What is the
most likely cause of this problem?
A plugged axle
Which of the following incorrect service procedures will cause brake lock-up?
master cylinder push rod adjusted too long
, Which of the following describes the proper way to depressurized an ABS system?
Pump the brake pedal at least 25 times (or more, depending on the manufacturer's
recommendation) with the ignition off.
The rear brakes are dragging after having new linings installed and the drums machined. the most
likely cause is the:
technician use the parking brake to adjust shoes and the cable is stuck
When turning brake drums:
use a dampening strap to reduce chatter
Which of the following is NOT a necessary drum brake measurement?
run-out
On a 3-channel system, which wheels are on the same circuit?
both rear wheels
One way to test an ABS wheel speed signal is to use _____ on your digital multimeter.
AC volts
The key input for the ABS control module comes from the:
wheel speed sensors
ABS speed sensor and sensor rings:
should not be hammered or tapped on and should always be replaced as a matched set
