L3 - 7270/7290 - 163 Diagnose - Rectify Trans & Driveline Faults

If air is present in a hydraulic clutch operating system, it will

• make it difficult to engage the gears

• cause the hydraulic fluid to overheat

• cause clutch to slip when pulling away

• produce clutch judder during engagement

How many dry clutch plates does a direct shift gearbox (DSG) require to be able to operate?

• 1

• 2

• 3

• 4

In a gearbox, the input shaft gear has 32 teeth and the output shaft gear has 16 teeth. What is the individual gear ratio?

• 0.5:1

• 1:1

• 2:1

• 48:1

What would be the most likely fault from difficulty engaging all gears?

• A worn friction plate

• A broken main shaft

• A broken input shaft

• A worn gear linkage

Which component would be worn if two gears can be engaged at the same time?

• Detent

• Idler gear

• Synchroniser

• Interlock mechanism

Within a 5-speed gearbox, the gear with a ratio of 0.8:1 would be

• 1st

• 3rd

• 4th

• 5th

Which clutch component drives the gearbox input shaft?

• Clutch cover.

• Friction plate.

• Pressure plate.

• Release bearing.

Which piece of workshop equipment would be used to determine the backlash between the crown wheel and the pinion?

• Engineer’s rule.

• Dial test indicator.

• External micrometer.

• Rolling torque gauge.

An automatic gearbox is stuck in the park position, what is the most likely cause of the fault?

• Speed sensor.

• Stop light switch.

• Engine immobiliser.

• Clutch pedal switch.

One method a Technician could use to diagnose a worn constant velocity joint would be to

• drive in a straight line

• drive slowly in a tight circle

• drive straight in reverse gear

• drive at speed in a straight line.