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WorksheetsLV12 Transmission
Total questions: 30
Worksheet time: 30mins
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
Which component is fitted between the clutch pressure plate and the flywheel?
Pressure plate
Driven plate
Release bearing
Release arm
A clutch driven plate is splined to the gearbox:
Output shaft
Layshaft
Main shaft
Input shaft
A hypoid gear arrangement may be identified without dismantling by:
The position of the pinion to housing
The absence of a drain or filler plug
A detachable pinion housing
A detachable cover on the rear casing
When a vehicle is travelling in a straight line, the
Planet gears move with the sun gears
Planet gears do not rotate on their shaft
Sun gears revolve at the same speed
All of the above
In relation to final drives, which of the following is a true statement?
Final drive may be combined on a front wheel drive vehicle
The final drive oil should never be changed
All of the above
All rear wheel drive units have a threaded drain plug
Backlash describes the movement:
Between the crown wheel and pinion
Between the crown wheel bearings
Of gears driven backwards
Of pinion bearings
A final drive assembly that does not employ bevel gears is fitted to:
RWD automatic transmission
All manual transmissions
FWD manual transmission
All automatic transmissions
What is this tool used for?
Centralise the friction plate to pressure plate
Measure friction plate thickness
To measure flywheel run-out
To check spigot bearing wear
A single plate clutch may have one or more springs mounted between:
Cover and pressure plate
Driven plate and pressure plate
Flywheel and pressure plate
Flywheel and the driven plate
The clutch spigot bearing is positioned in the:
Clutch cover
Release mechanism
Friction plate
End of the crankshaft
The function of the clutch is:
To provide a temporary neutral
All of these
Gradually takes up the drive from rest
Disconnect the drive from the engine
The purpose of a simple idler gear, meshed between a layshaft and mainshaft, is to:
Change the speed of the layshaft gear
Provide a reverse
Alter the gear ratio between the two gears
Enable smaller mainshaft and layshaft gears to be used
Removing a CV joint from a driveshaft may require a:
Soft mallet
Slide hammer
Sledge hammer
Bearing puller
What is this tool?
A micrometer
An external micrometer
A 50-75mm external micrometer
An internal micrometer
In a final drive assembly, it is usual for the:
Pinion to rotate slower than the crown wheel
Crown wheel to be driven by the propeller shaft
Pinion to drive the crown wheel
Crown wheel to drive the pinion
The type of gear-set used in an automatic transmission is known as:
Epicyclic
Spur
Helical
Constant mesh
The fourth gear ratio of most rear wheel drive light vehicles is:
1:1
2:1
0.85:1
3:1
Signs of grease from a CV joint may indicate:
Loose gaiter tie
Loose gaiter
Split gaiter
All of these
Clutch slip may be caused by:
The clutch shaft spigot bearing siezed
Lack of clearance at the release bearing
Too much clearance at the release bearing
Worn CV joints
One function of a gearbox in a motor vehicle is to:
Provide a means of emergency braking
Vary engine speed and torque
Allow the clutch to disengage
Multiply the torque
