Motorcycle Transmission

1.

Multiple Choice

30 sec

1 pt

Transmission vibration under load can be caused by:

Worn clutch friction plates

Worn gear dogs

tight spots in the drive chain

excessive backlash in the clutch shock absorber

2.

Multiple Choice

30 sec

1 pt

In the gearbox illustration, if the 6th shifted gear on the driveshaft is moved to the left, which gear is enaged?

Second

Third

Fourth

Sixth

3.

Multiple Choice

30 sec

1 pt

A customer complains of a "crashing sound" when engaging 1st gear from neutral.

worn dogs on first gear

over tight drive chain

clutch drag

faulty selector mechanism

4.

Multiple Choice

30 sec

1 pt

Which of the following is NOT a probable cause of the gear failure shown?

Improperly fitted gear circlip

Bent gear selector fork

Gear Lever return spring worn

Excessive cam selector drum end float

5.

Multiple Choice

30 sec

1 pt

What type of of gearbox is normally used in motorcycles?

Constant mesh

Constant Engagement

Sliding engagement

Sliding Mesh

6.

Multiple Choice

30 sec

1 pt

A clutch has excessive free play, This could:

Cause the clutch to occasionally slip

make it difficult to disengage the clutch

Make the clutch wear excessively

Make it difficult to engage the clutch

7.

Multiple Choice

30 sec

1 pt

A customer complains about imprecise and notchy gear shifting. Which of the following is the most likely to be faulty?

Sticking pawls

Worn cam grooves

Broken gear shift shaft

Worn shift forks

8.

Multiple Choice

30 sec

1 pt

Severe tight spots have developed in a rear drive chain. What is the most likely cause?

The chain has been run too loose

The chain has been run over tight

The sprockets have worn eccentrically

A faulty chain.

9.

Multiple Choice

30 sec

1 pt

The purpose of the cush drive within the rear wheel sprocket carrier is to:

Reduce chain noise

reduce vibration

reduce shock loading on the transmission

protect the rear wheel bearings

10.

Multiple Choice

30 sec

1 pt

The name commonly given to the foot change selector mechanism is:

Positive stop

Shift return

Positive Shift

Positive return

11.

Multiple Choice

30 sec

1 pt

The purpose of the sliding joint fitted to a motorcycle with a shaft drive is to allow for:

any purpose fluctuations that occur in the transmission

Changes in propeller shaft length due to movement

the drive to be transmitted through a variable angle

the drive to be transmitted at constant velocity

12.

Multiple Choice

30 sec

1 pt

Which of the following faults may produce clutch slip?

Lack of free play

Snapped clutch cable

too much free play

Leaking master cylinder

13.

Multiple Choice

30 sec

1 pt

Which of the following faults is most likely to produce clutch judder?

Badly worn centre plate

Insufficient free play

Excessive free play

Sticking clutch cable

14.

Multiple Choice

30 sec

1 pt

A pinion with 15 teeth drives a gear wheel having 27 teeth, what is the gear ratio?

1.6:1

2.5:1

2.2:1

1.8:1

15.

Multiple Choice

30 sec

1 pt

A gearbox provides a reduction of 4:1, what is the torque output if the torque input is 70nm: (Neglect frictional losses)

140Nm

210Nm

280Nm

350Nm

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