SOS BRAKE & BRAKING SYSTEM REAL EXAM QUESTIONS AND ANSWERS LATEST VERSION 2023

SOS BRAKE & BRAKING SYSTEM
REAL EXAM QUESTIONS AND
ANSWERS LATEST VERSION 2023
In a single anchor bendix drum type rear brake -
✔✔✔✔the secondary lining is longer than the
primary
Compared to the secondary shoe lining areas of
drum brakes, the primary shoe lining area is: -
✔✔✔✔smaller and goes toward the front of the car
During a brake overhaul, you notice that the brake
fluid seems to be very dirty and dark in color. What
should you do? - ✔✔✔✔flush the system before the
new parts are installed
In order to bleed the system on a vehicle equipped
with power brakes: - ✔✔✔✔None of the above
Technician A says all proportioning valves are
adjustable. Technician B says only proportioning
valves that are height sensing can be adjusted. Who
is right? - ✔✔✔✔B only
The brakes of a car squeal each time they are
applied, which of the following is the LEAST likely
source of the noise? - ✔✔✔✔Glazed brake pads
Technician A says the diameter of a brake drum is
measured with a brake drum micrometer and the
measurement should be taken in several locations.
Technician B says the wall thickness of a brake
drum should be measured with a micrometer. Who is
right? - ✔✔✔✔A only
Technician A says the above operation is necessary
on some disc brake pads to secure them to the
caliper. Technician B says that channel lock pliers
should be used to clinch the shoe ears to the caliper
housing. Who is right? - ✔✔✔✔Both A & B
The brake lights on a car do not light when the brake
pedal is depressed, which of the following is the
LEAST likely cause of the problem? - ✔✔✔✔A
burned out bulb.
Technician A says when the disc brakes anti-rattle
springs are incorrectly positioned or missing, the
brakes will rattle when they are not being applied.
Technician B says if there is a rattle from the brakes
when they are not applied, the caliper mounting
bolts are probably loose. Who is right? - ✔✔✔✔Both
A & B
What does a load sensing proportioning valve do? -
✔✔✔✔It increases the hydraulic pressure during
braking at the rear wheel cylinders when the vehicle
is loaded
If vacuum is present on both sides of the diaphragm
in a brake booster: - ✔✔✔✔The brakes are being
released
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 vent
Which of the following is not a necessary precaution
to follow when performing brake repairs on an ABS
equipped vehicle? - ✔✔✔✔Always remove the
electronic brake control module fuse before
adjusting or replacing a wheel speed sensor
Which of the following is true when inspecting wheel
speed sensors? - ✔✔✔✔You should measure the air
gap between the sensor and the reluctor wheel teeth
Which of the following is true about most properly
functioning anti-lock brake systems? - ✔✔✔✔The
brakes may lock up at speeds less than 10 miles per
hour
Which of the following would be the result of an
inoperative ABS pump/motor assembly: -
✔✔✔✔Conventional braking should still be available
Which of the following is true about bleeding brake
lines on most ABS equipped vehicles? - ✔✔✔✔Most
ABS brake lines can be bled like a convention ( non
ABS) system (Caution must be taken because of the
extreme pressure)
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.
Most anit-lock brake systems require the removal of
the pressure modulator fuse when: - ✔✔✔✔A
"space-saver" spare tire is being used
What information might be found on a brake drum to
help a mechanic? - ✔✔✔✔The maximum diameter
dimension