Vehicle Gear Box Quiz

What is the primary function of a clutch in a vehicle?

• To provide a link between the engine and the manual gear box.

• To increase the speed of the vehicle.

• To decrease the fuel consumption.

• To enhance the braking system.

Answer explanation

The primary function of a clutch is to provide a link between the engine and the manual gearbox, allowing the driver to engage or disengage the engine's power to the wheels for smooth gear changes.

How is a clutch disengaged?

• By turning off the engine.

• By pressing the clutch pedal.

• By shifting the gear lever.

• By accelerating the vehicle.

Answer explanation

A clutch is disengaged by pressing the clutch pedal, which separates the engine from the transmission, allowing for smooth gear changes. The other options do not effectively disengage the clutch.

What is the result of disengaging the clutch?

• The vehicle accelerates.

• The link between the engine and gear box is broken.

• The vehicle reverses.

• The engine increases its RPM.

Answer explanation

Disengaging the clutch breaks the connection between the engine and the gearbox, allowing the driver to change gears without stalling the engine. This is why the correct answer is that the link between the engine and gearbox is broken.

When the clutch is engaged, is power transmitted from the engine to the manual gear box?

• Yes

• No

• Sometimes

• Only in reverse

Answer explanation

When the clutch is engaged, it connects the engine to the manual gearbox, allowing power to be transmitted. Therefore, the correct answer is 'Yes'.

Which component is not part of a typical clutch system?

• Clutch plate

• Pressure plate assembly

• torque convertor

• Release bearing

Answer explanation

The torque converter is not part of a typical clutch system; it is used in automatic transmissions to transfer power. The clutch system includes components like the clutch plate, pressure plate assembly, and release bearing.

What is the function of the pressure plate assembly in a clutch system?

• To hold the clutch plate in place

• To apply pressure to the clutch plate

• To cool the engine

• To charge the battery

Answer explanation

The pressure plate assembly in a clutch system is crucial as it applies pressure to the clutch plate, allowing for smooth engagement and disengagement of the engine power to the transmission. This is essential for vehicle operation.

What fits in the splined hub in the center of the clutch plate?

• The engine shaft

• The gearbox primary/input shaft

• The driveshaft

• The drive chain

Answer explanation

The splined hub in the center of the clutch plate is designed to fit the gearbox primary/input shaft, allowing it to engage and disengage the engine's power to the transmission effectively.

What role do the diaphragm spring fingers play in the clutch mechanism?

• They increase fuel efficiency

• They act as levers to draw the pressure plate away from the flywheel

• They provide electrical insulation

• They enhance the vehicle's speed

Answer explanation

The diaphragm spring fingers function as levers that pull the pressure plate away from the flywheel, allowing the clutch to disengage and enabling smooth gear changes.

What component is bolted to the edge of the flywheel?

• The torque convertor

• The clutch cover (pressure plate)

• The starter motor

• The fuel injector

Answer explanation

The clutch cover, also known as the pressure plate, is bolted to the edge of the flywheel in a vehicle's transmission system. It engages and disengages the clutch, allowing for smooth gear changes.

What is located on the outer rim of the flywheel?

• The alternator belt

• The starter ring gear

• The timing chain

• The oil pump

Answer explanation

The starter ring gear is located on the outer rim of the flywheel, allowing the starter motor to engage and crank the engine. The other options, like the alternator belt and timing chain, are not part of the flywheel's structure.