Kiểm tra giữa kỳ Cơ khí ô tô

What principle does the braking system in a car operate on?

• Friction

• Hydraulics

• Aerodynamics

• Electronics

What is the function of the valve timing mechanism in a car engine?

• Adjust the amount of fuel entering the engine

• Control the timing of opening and closing the valves

• Cool the engine

• Regulate the oil pressure

Which type of engine uses diesel fuel?

• Internal combustion engine

• Electric engine

• Gasoline engine

• Hybrid engine

4: Which component helps absorb shocks when driving over rough terrain?

• Transmission system

• Shock absorber

• Steering system

• Suspension system

What harmful gas is typically present in car exhaust emissions?

• Oxygen (O₂)

• Carbon dioxide (CO₂)

• Nitrogen (N₂)

• Carbon monoxide (CO)

In the transmission system, which part is responsible for transmitting torque from the engine to the wheels?

• Gearbox

• Driveshaft

• Clutch

• Axle

What is the purpose of the car battery?

• Provide fuel to the engine

• Generate voltage to start the engine

• Absorb shocks for the car

• Control cabin temperature

How many strokes does a typical car engine have?

• 2 strokes

• 4 strokes

• 6 strokes

• 8 strokes

What does the cooling system in a car use?

• WaterElectricity

• Air

• Oil

• Water

In a car's electrical system, what is the role of the alternator?

• Supply fuel to the engine

• Generate electricity and recharge the battery

• Control the steering system

• Reduce the speed of the car