1. In a modern air conditioning system, what is the function of the
compressor?
A. To cool the air before it enters the cabin
B. To circulate refrigerant through the system
C. To remove moisture from the refrigerant
D. To control the temperature of the engine
Answer: b) To circulate refrigerant through the system
Rationale: The compressor is responsible for circulating refrigerant
through the air conditioning system, increasing the pressure and
allowing it to release heat.
2. Which of the following is most likely to cause excessive brake wear?
A. Driving with the handbrake on
B. Proper tire inflation
C. Smooth acceleration and braking
D. Regular maintenance checks
Answer: a) Driving with the handbrake on
Rationale: Driving with the handbrake partially engaged causes
friction, leading to accelerated brake wear.
,3. Which of the following components should be checked when
diagnosing a lack of acceleration in a vehicle?
A. Windshield wipers
B. Fuel injectors
C. Oil filter
D. Alternator
Answer: b) Fuel injectors
Rationale: Clogged or malfunctioning fuel injectors can restrict fuel
flow to the engine, leading to a lack of acceleration.
4. Which of the following tire conditions may indicate an alignment
issue?
A. Uneven tire wear across the tread
B. Bald spots on the tires
C. Low tire pressure
D. Over-inflated tires
Answer: a) Uneven tire wear across the tread
Rationale: Uneven tire wear is often a sign that the vehicle's alignment
is off, causing improper tire contact with the road.
5. Which of the following is a common cause of engine misfire?
A. Low tire pressure
B. Faulty spark plug
, C. Overfilled oil
D. Broken exhaust pipe
Answer: b) Faulty spark plug
Rationale: A faulty spark plug can cause a misfire by failing to ignite
the air-fuel mixture properly, leading to engine performance issues.
6. Which component of the vehicle's brake system is responsible for
converting hydraulic pressure into mechanical force?
A. Brake fluid
B. Master cylinder
C. Calipers
D. Brake pads
Answer: c) Calipers
Rationale: Brake calipers convert hydraulic pressure from the master
cylinder into mechanical force to apply pressure to the brake pads.
7. What is an indicator of a bad or failing timing belt?
A. Oil leaks
B. Squealing noise from the engine
C. Difficulty in starting the engine
D. Engine misfires or rough idling
Answer: c) Difficulty in starting the engine
compressor?
A. To cool the air before it enters the cabin
B. To circulate refrigerant through the system
C. To remove moisture from the refrigerant
D. To control the temperature of the engine
Answer: b) To circulate refrigerant through the system
Rationale: The compressor is responsible for circulating refrigerant
through the air conditioning system, increasing the pressure and
allowing it to release heat.
2. Which of the following is most likely to cause excessive brake wear?
A. Driving with the handbrake on
B. Proper tire inflation
C. Smooth acceleration and braking
D. Regular maintenance checks
Answer: a) Driving with the handbrake on
Rationale: Driving with the handbrake partially engaged causes
friction, leading to accelerated brake wear.
,3. Which of the following components should be checked when
diagnosing a lack of acceleration in a vehicle?
A. Windshield wipers
B. Fuel injectors
C. Oil filter
D. Alternator
Answer: b) Fuel injectors
Rationale: Clogged or malfunctioning fuel injectors can restrict fuel
flow to the engine, leading to a lack of acceleration.
4. Which of the following tire conditions may indicate an alignment
issue?
A. Uneven tire wear across the tread
B. Bald spots on the tires
C. Low tire pressure
D. Over-inflated tires
Answer: a) Uneven tire wear across the tread
Rationale: Uneven tire wear is often a sign that the vehicle's alignment
is off, causing improper tire contact with the road.
5. Which of the following is a common cause of engine misfire?
A. Low tire pressure
B. Faulty spark plug
, C. Overfilled oil
D. Broken exhaust pipe
Answer: b) Faulty spark plug
Rationale: A faulty spark plug can cause a misfire by failing to ignite
the air-fuel mixture properly, leading to engine performance issues.
6. Which component of the vehicle's brake system is responsible for
converting hydraulic pressure into mechanical force?
A. Brake fluid
B. Master cylinder
C. Calipers
D. Brake pads
Answer: c) Calipers
Rationale: Brake calipers convert hydraulic pressure from the master
cylinder into mechanical force to apply pressure to the brake pads.
7. What is an indicator of a bad or failing timing belt?
A. Oil leaks
B. Squealing noise from the engine
C. Difficulty in starting the engine
D. Engine misfires or rough idling
Answer: c) Difficulty in starting the engine
