COMPLETE STUDY GUIDE + VERIFIED Q&A
(OFFICIAL EXAM STYLE MOCK TEST 1– 100)
GRADE A+ GUARANTEED
Content Covered (Most Tested Areas): Hydraulic
Brake Systems, Air Brakes, ABS, Brake Inspection
Standards, Drum & Disc Brakes, Brake Adjustment,
Safety Regulations, Diagnostic Procedures
1. The primary purpose of a vehicle’s braking system is to:
A. Increase engine power
B. Reduce fuel consumption
C. Convert kinetic energy into heat energy
D. Improve steering control
Answer: C. Convert kinetic energy into heat energy
Brakes work by friction, transforming motion into heat to slow or stop the
vehicle.
2. Brake fade is primarily caused by:
A. Low tire pressure
B. Overheating of braking components
C. Excess lubrication
D. Weak suspension
Answer: B. Overheating of braking components
Excess heat reduces friction effectiveness between pads/shoes and
rotor/drum.
,3. In a hydraulic brake system, force is transmitted by:
A. Compressed air
B. Mechanical linkage
C. Hydraulic fluid
D. Electrical current
Answer: C. Hydraulic fluid
Brake fluid transfers pedal force through Pascal’s principle.
4. The component that stores brake fluid is the:
A. Caliper
B. Reservoir
C. Booster
D. Proportioning valve
Answer: B. Reservoir
It maintains an adequate fluid supply for system operation.
5. A spongy brake pedal most likely indicates:
A. Warped rotors
B. Air in the brake lines
C. Worn tires
D. Faulty alternator
Answer: B. Air in the brake lines
Air compresses, causing soft pedal feel.
6. Disc brakes use which component to apply pressure to the rotor?
A. Wheel cylinder
B. Caliper
C. Master cylinder
D. Booster
Answer: B. Caliper
The caliper squeezes pads against the rotor.
7. Drum brakes use brake shoes that press against the:
A. Rotor
B. Axle
, C. Drum
D. Hub cap
Answer: C. Drum
Shoes expand outward to contact the drum’s inner surface.
8. The master cylinder’s function is to:
A. Multiply pedal force hydraulically
B. Cool the brakes
C. Store compressed air
D. Adjust brake timing
Answer: A. Multiply pedal force hydraulically
It converts mechanical force into hydraulic pressure.
9. Brake fluid is hygroscopic, meaning it:
A. Repels water
B. Absorbs moisture
C. Changes color rapidly
D. Evaporates quickly
Answer: B. Absorbs moisture
Moisture lowers boiling point and promotes corrosion.
10.ABS prevents wheel lock by:
A. Increasing pedal force
B. Reducing engine speed
C. Rapidly modulating brake pressure
D. Applying parking brakes
Answer: C. Rapidly modulating brake pressure
Sensors and valves adjust pressure to maintain traction.
11.The brake booster typically uses:
A. Engine vacuum
B. Battery power only
C. Fuel pressure
D. Cooling system pressure