SS3 Third Term Auto Mechanic Past Questions And Answers
SS3 Third Term Auto Mechanic questions:
Question: What is the purpose of the crankshaft in an internal combustion engine?
A) Generate electrical power
B) Synchronize engine components
C) Convert reciprocating motion to rotational motion
D) Regulate fuel injection
Answer: C) Convert reciprocating motion to rotational motion
Question: In a modern braking system, what component is responsible for distributing brake force between the front and rear wheels?
A) Master cylinder
B) Brake caliper
C) Brake booster
D) Proportioning valve
Answer: D) Proportioning valve
Question: What is the primary function of the PCV (Positive Crankcase Ventilation) system in an engine?
A) Control tire pressure
B) Regulate engine temperature
C) Reduce air pollution
D) Improve suspension
Answer: C) Reduce air pollution
Question: Which part of the suspension system connects the wheels to the frame and allows for vertical movement?
A) Shock absorber
B) Strut
C) Control arm
D) Sway bar
Answer: C) Control arm
Question: What does the term “gear ratio” refer to in the context of a vehicle’s transmission?
A) The number of gears in the transmission
B) The ratio of engine speed to wheel speed
C) The relationship between gear sizes
D) The gear lever position
Answer: C) The relationship between gear sizes
Question: In a power steering system, what component assists in maintaining a constant amount of power assist regardless of engine speed?
A) Power steering pump
B) Steering rack
C) Control valve
D) Steering column
Answer: C) Control valve
Question: What is the purpose of the alternator in a vehicle’s electrical system?
A) Generate electrical power
B) Ignite the air-fuel mixture
C) Distribute brake force
D) Regulate suspension height
Answer: A) Generate electrical power
Question: Which component is responsible for controlling the timing of the opening and closing of engine valves?
A) Crankshaft
B) Camshaft
C) Timing belt
D) Piston
Answer: C) Timing belt
Question: What type of suspension system uses a torsion bar to support the vehicle’s weight?
A) MacPherson strut
B) Coil spring suspension
C) Leaf spring suspension
D) Torsion bar suspension
Answer: D) Torsion bar suspension
Question: What does the term “torque converter” do in an automatic transmission system?
A) Transfer power from the engine to the transmission
B) Control air-fuel mixture
C) Synchronize engine components
D) Convert fluid pressure to mechanical power
Answer: D) Convert fluid pressure to mechanical power
Question: Which type of fuel system utilizes fuel injectors mounted in the intake manifold near each cylinder?
A) Carburetor system
B) Port fuel injection
C) Direct fuel injection
D) Throttle body injection
Answer: B) Port fuel injection
Question: What is the purpose of the transmission cooler in an automatic transmission system?
A) Increase engine power
B) Regulate engine temperature
C) Cool the transmission fluid
D) Enhance suspension
Answer: C) Cool the transmission fluid
Question: In a disc brake system, which component is responsible for squeezing the brake pads against the brake rotor?
A) Caliper
B) Drum
C) Master cylinder
D) Brake booster
Answer: A) Caliper
Question: What component is responsible for changing the direction of power flow in the differential?
A) Ring gear
B) Pinion gear
C) Spider gears
D) Axle shaft
Answer: C) Spider gears
Question: What is the purpose of the transmission control module (TCM) in an automatic transmission system?
A) Control engine temperature
B) Manage fuel efficiency
C) Regulate transmission functions
D) Monitor tire pressure
Answer: C) Regulate transmission functions
Question: Which type of engine uses a combination of a gasoline engine and an electric motor, but only one propels the vehicle at a time?
A) Electric engine
B) Hybrid engine
C) Diesel engine
D) Rotary engine
Answer: B) Hybrid engine
Question: What is the function of the camshaft position sensor in an engine?
A) Regulate air intake
B) Monitor engine temperature
C) Provide feedback on camshaft position
D) Distribute brake force
Answer: C) Provide feedback on camshaft position
Question: Which type of suspension system uses a single shock absorber and coil spring combination for each wheel?
A) Independent suspension
B) MacPherson strut suspension
C) Double wishbone suspension
D) Live axle suspension
Answer: B) MacPherson strut suspension
Question: What is the primary function of the fuel pressure regulator in a fuel-injected engine?
A) Adjust tire pressure
B) Control fuel injection timing
C) Maintain constant fuel pressure
D) Regulate engine temperature
Answer: C) Maintain constant fuel pressure
Question: In a vehicle’s electrical system, what does the alternator voltage regulator control?
A) Fuel injection timing
B) Battery charging voltage
C) Engine temperature
D) Transmission fluid temperature
Answer: B) Battery charging voltage.
