SS2 Third Term Auto Mechanic Past Questions And Answers
20 SS2 Third Term Auto Mechanic Questions with options and answers:
Question: What is the purpose of a turbocharger in an internal combustion engine?
A. Increase fuel efficiency
B. Enhance engine power through forced induction
C. Cool the transmission
D. Adjust tire pressure
Answer: B. Enhance engine power through forced induction
Question: The term “valve clearance” refers to the:
A. Distance between the valve stem and camshaft
B. Thickness of the valve spring
C. Diameter of the valve
D. Angle of the valve seat
Answer: A. Distance between the valve stem and camshaft
Question: Which type of transmission system allows for automatic gear shifting without manual intervention?
A. Manual transmission
B. Semi-automatic transmission
C. Automatic transmission
D. Continuously Variable Transmission (CVT)
Answer: C. Automatic transmission
Question: The purpose of the differential in a vehicle is to:
A. Distribute power between front and rear wheels
B. Control suspension height
C. Increase fuel efficiency
D. Adjust tire pressure
Answer: A. Distribute power between front and rear wheels
Question: What is the primary function of the throttle position sensor (TPS) in an engine?
A. Regulate tire pressure
B. Monitor the position of the throttle valve
C. Control suspension movement
D. Adjust fuel injection timing
Answer: B. Monitor the position of the throttle valve
Question: In a car’s electrical system, what does the alternator produce?
A. Fuel
B. Electrical power
C. Engine vacuum
D. Brake fluid
Answer: B. Electrical power
Question: The term “camber wear” on tires is associated with:
A. Uneven wear on the inner or outer edge of the tire
B. Tread wear in the center of the tire
C. Irregular tire pressure
D. Abnormal tire rotation
Answer: A. Uneven wear on the inner or outer edge of the tire
Question: What component is responsible for opening and closing the intake and exhaust valves in an engine?
A. Crankshaft
B. Camshaft
C. Connecting rod
D. Piston
Answer: B. Camshaft
Question: The purpose of the flywheel in an engine is to:
A. Regulate tire pressure
B. Store rotational energy and smooth engine operation
C. Control suspension movement
D. Adjust fuel-air mixture
Answer: B. Store rotational energy and smooth engine operation
Question: What is the role of the mass airflow sensor (MAF) in the intake system?
A. Regulate tire pressure
B. Measure the amount of air entering the engine
C. Control suspension movement
D. Adjust fuel injection timing
Answer: B. Measure the amount of air entering the engine
Question: The term “knocking” in an engine refers to:
A. Irregular tire wear
B. Abnormal engine vibrations
C. Pre-ignition or detonation of the air-fuel mixture
D. Brake system failure
Answer: C. Pre-ignition or detonation of the air-fuel mixture
Question: What is the function of the powertrain control module (PCM) in a modern vehicle?
A. Regulate tire pressure
B. Control various engine and transmission functions
C. Monitor suspension movement
D. Adjust fuel injection timing
Answer: B. Control various engine and transmission functions
Question: The term “wheel alignment” involves adjusting the angles of:
A. Brake calipers
B. Suspension springs
C. Steering components
D. Tire contact with the road
Answer: D. Tire contact with the road
Question: What is the purpose of the fuel pressure regulator in a fuel injection system?
A. Control suspension movement
B. Adjust tire pressure
C. Maintain constant fuel pressure in the fuel rail
D. Regulate engine temperature
Answer: C. Maintain constant fuel pressure in the fuel rail
Question: The function of the distributor in older ignition systems is to:
A. Regulate tire pressure
B. Control spark timing to the spark plugs
C. Monitor suspension movement
D. Adjust fuel injection timing
Answer: B. Control spark timing to the spark plugs
Question: Which type of brake system uses a master cylinder and brake booster for increased braking force?
A. Disc brakes
B. Drum brakes
C. ABS brakes
D. Hydraulic brakes
Answer: D. Hydraulic brakes
Question: The term “ABS sensor” is associated with monitoring:
A. Engine temperature
B. Tire pressure
C. Anti-lock braking system performance
D. Fuel injection timing
Answer: C. Anti-lock braking system performance
Question: The purpose of the exhaust manifold in an engine is to:
A. Regulate tire pressure
B. Distribute engine power
C. Direct exhaust gases from the cylinders to the exhaust system
D. Control suspension movement
Answer: C. Direct exhaust gases from the cylinders to the exhaust system
Question: What is the function of the crankshaft position sensor in an engine?
A. Regulate tire pressure
B. Monitor the position of the crankshaft
C. Control suspension movement
D. Adjust fuel injection timing
Answer: B. Monitor the position of the crankshaft
Question: The term “spark plug gap” refers to the distance between:
A. Brake pads
B. Ignition coils
C. The center and ground electrode of a spark plug
D. Valve stems
Answer: C. The center and ground electrode of a spark plug.
