SOS Mechanic Certification- Brakes
Exam Questions and Answers Graded A+
Most 1995 & newer vehicles use which of the following types of wheels bearings
on non-drive wheel? - Correct answer-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: - Correct answer-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: - Correct answer-Smaller and goes
towards the front of the car.
A cracked or torn vacuum diaphragm in a brake power booster would most likely
cause: - Correct answer-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? - Correct answer-A plugged
axle
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Which of the following incorrect service procedures will cause brake lock-up? -
Correct answer-master cylinder push rod adjusted too long
Which of the following describes the proper way to depressurized an ABS system?
- Correct answer-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: - Correct answer-technician use the parking
brake to adjust shoes and the cable is stuck
When turning brake drums: - Correct answer-use a dampening strap to reduce
chatter
Which of the following is NOT a necessary drum brake measurement? - Correct
answer-run-out
On a 3-channel system, which wheels are on the same circuit? - Correct answer-
both rear wheels
One way to test an ABS wheel speed signal is to use _____ on your digital
multimeter. - Correct answer-AC volts
The key input for the ABS control module comes from the: - Correct answer-wheel
speed sensors
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Exam Questions and Answers Graded A+
Most 1995 & newer vehicles use which of the following types of wheels bearings
on non-drive wheel? - Correct answer-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: - Correct answer-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: - Correct answer-Smaller and goes
towards the front of the car.
A cracked or torn vacuum diaphragm in a brake power booster would most likely
cause: - Correct answer-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? - Correct answer-A plugged
axle
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Which of the following incorrect service procedures will cause brake lock-up? -
Correct answer-master cylinder push rod adjusted too long
Which of the following describes the proper way to depressurized an ABS system?
- Correct answer-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: - Correct answer-technician use the parking
brake to adjust shoes and the cable is stuck
When turning brake drums: - Correct answer-use a dampening strap to reduce
chatter
Which of the following is NOT a necessary drum brake measurement? - Correct
answer-run-out
On a 3-channel system, which wheels are on the same circuit? - Correct answer-
both rear wheels
One way to test an ABS wheel speed signal is to use _____ on your digital
multimeter. - Correct answer-AC volts
The key input for the ABS control module comes from the: - Correct answer-wheel
speed sensors
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
