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Past Questions and Answers

SS3 Second Term Auto Mechanic Past Questions And Answers

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SS3 Second Term Auto Mechanic Past Questions And Answers

 

SS3 Second Term Auto Mechanic questions:

 

Question: What role does the oxygen sensor play in the exhaust system of a vehicle?

 

A) Monitor tire pressure

B) Regulate fuel injection

C) Measure oxygen levels

D) Reduce engine noise

Answer: C) Measure oxygen levels

Question: Which type of suspension system provides a smoother ride by using air-filled chambers?

 

A) MacPherson strut

B) Air suspension

C) Coil spring suspension

D) Leaf spring suspension

Answer: B) Air suspension

Question: What does the acronym OBD-II stand for in automotive diagnostics?

 

A) On-Board Diagnostics II

B) Oil and Brake Detection

C) Overhead Belt Drive

D) Oxygen and Battery Display

Answer: A) On-Board Diagnostics II

Question: In a manual transmission system, what is the purpose of the clutch?

 

A) Shift gears

B) Control steering

C) Regulate fuel flow

D) Manage tire pressure

Answer: A) Shift gears

Question: Which type of fuel injection system relies on a continuous spray of fuel into the intake manifold?

 

A) Port fuel injection

B) Direct fuel injection

C) Sequential fuel injection

D) Carburetor

Answer: D) Carburetor

Question: What is the function of the EGR (Exhaust Gas Recirculation) valve in an engine?

 

A) Increase fuel efficiency

B) Reduce exhaust emissions

C) Boost engine power

D) Improve suspension

Answer: B) Reduce exhaust emissions

Question: Which component is responsible for controlling the opening and closing of engine valves?

 

A) Piston

B) Camshaft

C) Crankshaft

D) Flywheel

Answer: B) Camshaft

Question: What does the term “wheel alignment” refer to in the context of automotive maintenance?

 

A) Adjusting tire pressure

B) Balancing wheel weights

C) Aligning wheels to specifications

D) Rotating tires

Answer: C) Aligning wheels to specifications

Question: Which type of brake system uses a hydraulic master cylinder to transfer force to the brake shoes or pads?

 

A) Disc brake

B) Drum brake

C) Parking brake

D) Anti-lock brake

Answer: B) Drum brake

Question: What is the primary purpose of the fuel pump in a vehicle?

 

A) Generate electrical power

B) Transfer fuel from the tank to the engine

C) Control air intake

D) Regulate engine temperature

Answer: B) Transfer fuel from the tank to the engine

Question: Which type of engine uses a combination of an internal combustion engine and an electric motor?

 

A) Diesel engine

B) Rotary engine

C) Hybrid engine

D) Electric engine

Answer: C) Hybrid engine

Question: What component is responsible for distributing electrical power to the spark plugs in a gasoline engine?

 

A) Alternator

B) Ignition coil

C) Distributor

D) Spark plug wire

Answer: B) Ignition coil

Question: In an automatic transmission system, what is the function of the torque converter?

 

A) Synchronize engine components

B) Control suspension height

C) Transfer power from the engine to the transmission

D) Regulate air-fuel mixture

Answer: C) Transfer power from the engine to the transmission

Question: Which type of engine uses a rotor instead of traditional pistons for producing power?

 

A) Diesel engine

B) Wankel rotary engine

C) Hybrid engine

D) Two-stroke engine

Answer: B) Wankel rotary engine

Question: What is the purpose of the powertrain control module (PCM) in modern vehicles?

 

A) Regulate suspension height

B) Manage fuel efficiency

C) Control engine and transmission functions

D) Monitor tire pressure

Answer: C) Control engine and transmission functions

Question: Which type of fuel is commonly used in diesel engines?

 

A) Unleaded gasoline

B) Diesel fuel

C) Propane

D) Ethanol

Answer: B) Diesel fuel

Question: What is the purpose of the serpentine belt in an engine?

 

A) Distribute power to wheels

B) Rotate the crankshaft

C) Drive various engine components

D) Control suspension height

Answer: C) Drive various engine components

Question: Which component is responsible for filtering contaminants from the engine oil?

 

A) Oil pump

B) Oil filter

C) Oil pan

D) Oil cooler

Answer: B) Oil filter

Question: What is the function of the throttle position sensor (TPS) in a fuel-injected engine?

 

A) Monitor engine temperature

B) Regulate air intake

C) Measure tire pressure

D) Control fuel injection

Answer: B) Regulate air intake

Question: In a car’s exhaust system, what is the purpose of the muffler?

 

A) Increase engine power

B) Reduce noise from exhaust gases

C) Improve fuel efficiency

D) Enhance suspension

Answer: B) Reduce noise from exhaust gases.

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