LV12 Transmission Revision

The purpose of the sliding joint on a propeller shaft is to allow for:

• Any torque fluctuations that occur in the transmission
• The drive to be transmitted through a variable angle
• Changes in the propeller shaft length due to movement
• The drive to be transmitted at constant velocity

What type of gears are used in a sliding mesh gearbox?

• Helical gears
• Spur gears
• Epicyclic gears
• Hypoid gears

Which of the following faults may produce clutch slip?

• Lack of free play
• Missing pedal rubbers
• Too much free play
• Lack of clutch fluid

Multi-plate clutches are used when there is not much space and?

• The friction force has to be increased
• The friction force has to be decreased
• The rate of wear needs to be reduced
• A high torque has to be transmitted

Which of the following is not a legal requirement when road testing a vehicle?

• A current road fund license
• Driver wearing a seat belt
• Trade plates front and rear
• A valid drivers license

A detent ball and spring mechanism is often used:

• To lock the selector shafts into position
• To synchronise the speeds of the gears
• In a constant velocity joint
• To prevent excessive gear shaft end float

A fully floating hub arrangement is often used:

• Four wheel drive cars
• CVT transmission systems
• Light commercial vehicles
• Front wheel drive cars

A FWD vehicle produces a knocking noise while cornering, what is the most likely cause?

• A worn mainshaft bearing
• A worn layshaft bearing
• A worn differential bearing
• A CV joint

Air present in the hydraulic clutch mechanism will:

• Cause the fluid to overheat
• Produce clutch judder
• Make it difficult to disengage the clutch
• Cause the clutch to slip

Insufficient clutch free play may cause:

• The clutch to slip
• Difficulty engaging gears
• The clutch to drag
• The clutch to judder