LV13 Powerpoint Qs

A vehicle with a manual transmission will not disengage the clutch. ONE possible cause is a:

• worn clutch pressure plate

• contaminated clutch linings

• broken friction plate torsional springs

• friction plate sticking on input shaft splines

When engaging gear there is noticeable clutch judder. ONE possible cause is:

• badly worn engine mountings

• clutch cable worn

• centre plate sticking on input shaft splines

• broken clutch diaphragm spring

A typical gear ratio for 4th gear, in a five-speed gearbox is:

• 0.56:1

• 1.00:1

• 1.43:1

• 2.07:1

In a vehicle fitted with a manual transmission it has a tendency to jump out of gear. ONE possible cause is:

• broken selector detent spring

• low transmission oil level

• worn synchromesh baulk ring

• worn clutch friction plate

ONE possible cause of a manual transmission jumping out of gear is:

• worn synchromesh baulk ring

• worn selector forks

• incorrect transmission fluid

• weak interlock mechanism

What is the purpose of the grooves on the conical surface of a synchromesh baulk ring?

• To allow a smaller contact area and thereby reduce friction between surfaces

• To allow for better lubrication of the friction faces to prevent overheating

• To provide a rapid breakdown of the oil film and allow the cone faces to lock

• To prevent the engagement of more than one gear at a time

A vehicle is fitted with an overdrive gear arrangement. At cruising speeds this will mean:

• torque output is increased, speed output is increased

• torque output is reduced, speed output is reduced

• torque output is reduced, speed output is increased

• torque output is increased, speed output is reduced

If the Input/Driver gear has 10 teeth and the Driven gear has 30 teeth, What is the ratio?

• 10:30

• 1:3

• 3:1

• 30:10

If the Input/Driver gear has 20 teeth and the Driven gear has 30 teeth, What is the ratio?

• 30:20

• 1.5:1

• 20:30

• 1:1.5

If the Input/Driver gear has 10 teeth, the Driven gear has 12 teeth and an idler in-between has 7 teeth.

• 10:7:12

• 1.2:0.7::1

• 1.2:1

• 0.8:1