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SOS MECHANIC CERTIFICATION- BRAKES
ACTUAL EXAM PREP 2026 ALL QUESTIONS
AND CORRECT DETAILED ANSWERS
ALREADY A GRADED WITH EXPERT
FEEDBACK |CURRENTLY TESTING|NEW
AND REVISED
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? -
ANSWER- A plugged axle
Which of the following incorrect service procedures will cause brake
lock-up? - ANSWER- master cylinder push rod adjusted too long
Which of the following describes the proper way to depressurized an
ABS system? - 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: - ANSWER- technician
use the parking brake to adjust shoes and the cable is stuck
When turning brake drums: - ANSWER- use a dampening strap to
reduce chatter
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Which of the following is NOT a necessary drum brake measurement? -
ANSWER- run-out
On a 3-channel system, which wheels are on the same circuit? -
ANSWER- both rear wheels
One way to test an ABS wheel speed signal is to use _____ on your
digital multimeter. - ANSWER- AC volts
The key input for the ABS control module comes from the: - ANSWER-
wheel speed sensors
ABS speed sensor and sensor rings: - ANSWER- should not be
hammered or tapped on and should always be replaced as a matched set
Flexible brake hoses should be replaced: - ANSWER- when dampness is
evident on the hose
Which of the following should be used to check for rotor thickness
variation: - ANSWER- Micrometer
After rebuilding a master cylinder, the rod between the master cylinder
and booster should be: - ANSWER- adjusted properly
SOS MECHANIC CERTIFICATION- BRAKES
ACTUAL EXAM PREP 2026 ALL QUESTIONS
AND CORRECT DETAILED ANSWERS
ALREADY A GRADED WITH EXPERT
FEEDBACK |CURRENTLY TESTING|NEW
AND REVISED
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? -
ANSWER- A plugged axle
Which of the following incorrect service procedures will cause brake
lock-up? - ANSWER- master cylinder push rod adjusted too long
Which of the following describes the proper way to depressurized an
ABS system? - 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: - ANSWER- technician
use the parking brake to adjust shoes and the cable is stuck
When turning brake drums: - ANSWER- use a dampening strap to
reduce chatter
, 2|Page
Which of the following is NOT a necessary drum brake measurement? -
ANSWER- run-out
On a 3-channel system, which wheels are on the same circuit? -
ANSWER- both rear wheels
One way to test an ABS wheel speed signal is to use _____ on your
digital multimeter. - ANSWER- AC volts
The key input for the ABS control module comes from the: - ANSWER-
wheel speed sensors
ABS speed sensor and sensor rings: - ANSWER- should not be
hammered or tapped on and should always be replaced as a matched set
Flexible brake hoses should be replaced: - ANSWER- when dampness is
evident on the hose
Which of the following should be used to check for rotor thickness
variation: - ANSWER- Micrometer
After rebuilding a master cylinder, the rod between the master cylinder
and booster should be: - ANSWER- adjusted properly
