SOS MECHANIC CERTIFICATION- BRAKES EXAM
v v v v
WITH CORRECT ANSWERS
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1. Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv wheel? ..ANSWER>>> Sealed non-serviceable
v vv vv
2. to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times,
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv hold the brake pedal depressed, and start the engine. the brake pedal should
vv vv vv vv vv vv vv vv vv vv vv vv v
..ANSWER>>> drop slightly and remain firm vv vv vv vv vv
3. You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary shoe
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
lining is
vv vv
..ANSWER>>> Smaller and goes towards the front of the car. v vv vv vv vv vv vv vv vv
4. A cracked or torn vacuum diaphragm in a brake power booster would most likely cause
vv vv vv vv vv vv vv vv vv vv vv vv vv vv v
..ANSWER>>> a hard pedal feel requiring very high pedal effort to stop
vv vv vv vv vv vv vv vv vv vv vv
5. A mechanic finds gear lube inside both rear brake drums on a rear wheel drive vehicle.What is the
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv v vv vv
vv most likely cause of this problem?
vv vv vv vv vv
v ..ANSWER>>> A plugged axle vvv vv vv
1|P a g
v v
, 6. Which of the following incorrect service procedures will cause brake lock-up?
vv vv vv vv vv vv vv vv vv vv
v ..ANSWER>>> master cylinder push rod adjusted too longv vv vv vv vv vv vv vv
7. Which of the following describes the proper way to depressurized an ABS system?
vv vv vv vv vv vv vv vv vv vv vv vv
v ..ANSWER>>> Pump the brake pedal at least 25 times (or more, depending on the manufacturer's
vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv recommendation) with the ignition off. vv vv vv vv
8. The rear brakes are dragging after having new linings installed and the drums machined. the most likely
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv cause is the vv vv
..ANSWER>>> technician use the parking brake to adjust shoes and the cable is stuck
vv vv vv vv vv vv vv vv vv vv vv vv vv
9. When turning brake drums vv vv vv
..ANSWER>>> use a dampening strap to reduce chatter vvv vv vv vv vv vv vv
10. Which of the following is NOT a necessary drum brake measurement?
vv vv vv vv vv vv vv vv vv vv
v ..ANSWER>>>run-out
11. On a 3-channel system, which wheels are on the same circuit?
vv vv vv vv vv vv vv vv vv vv v
..ANSWER>>> both rear wheels vvv vv vv
12. One way to test an ABS wheel speed signal is to use
vv vv vv vv vv vv vv vv vv vv vv vv on your digital
vv vv
vv multimeter
..ANSWER>>> AC volts v vv vv
2|P a g
v v
v v v v
WITH CORRECT ANSWERS
v v v
1. Most 1995 & newer vehicles use which of the following types of wheels bearings on non-drive
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv wheel? ..ANSWER>>> Sealed non-serviceable
v vv vv
2. to test a vacuum power brake booster in the vehicle, you should pump the brake pedal at least 4 times,
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv hold the brake pedal depressed, and start the engine. the brake pedal should
vv vv vv vv vv vv vv vv vv vv vv vv v
..ANSWER>>> drop slightly and remain firm vv vv vv vv vv
3. You are installing a set of brake shoe linings that are not the same length. Traditionally, the primary shoe
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
lining is
vv vv
..ANSWER>>> Smaller and goes towards the front of the car. v vv vv vv vv vv vv vv vv
4. A cracked or torn vacuum diaphragm in a brake power booster would most likely cause
vv vv vv vv vv vv vv vv vv vv vv vv vv vv v
..ANSWER>>> a hard pedal feel requiring very high pedal effort to stop
vv vv vv vv vv vv vv vv vv vv vv
5. A mechanic finds gear lube inside both rear brake drums on a rear wheel drive vehicle.What is the
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv v vv vv
vv most likely cause of this problem?
vv vv vv vv vv
v ..ANSWER>>> A plugged axle vvv vv vv
1|P a g
v v
, 6. Which of the following incorrect service procedures will cause brake lock-up?
vv vv vv vv vv vv vv vv vv vv
v ..ANSWER>>> master cylinder push rod adjusted too longv vv vv vv vv vv vv vv
7. Which of the following describes the proper way to depressurized an ABS system?
vv vv vv vv vv vv vv vv vv vv vv vv
v ..ANSWER>>> Pump the brake pedal at least 25 times (or more, depending on the manufacturer's
vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv recommendation) with the ignition off. vv vv vv vv
8. The rear brakes are dragging after having new linings installed and the drums machined. the most likely
vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
vv cause is the vv vv
..ANSWER>>> technician use the parking brake to adjust shoes and the cable is stuck
vv vv vv vv vv vv vv vv vv vv vv vv vv
9. When turning brake drums vv vv vv
..ANSWER>>> use a dampening strap to reduce chatter vvv vv vv vv vv vv vv
10. Which of the following is NOT a necessary drum brake measurement?
vv vv vv vv vv vv vv vv vv vv
v ..ANSWER>>>run-out
11. On a 3-channel system, which wheels are on the same circuit?
vv vv vv vv vv vv vv vv vv vv v
..ANSWER>>> both rear wheels vvv vv vv
12. One way to test an ABS wheel speed signal is to use
vv vv vv vv vv vv vv vv vv vv vv vv on your digital
vv vv
vv multimeter
..ANSWER>>> AC volts v vv vv
2|P a g
v v
