,Chapter 36—Clutches
TRUE/FALSE
1. Clutch slippage occurs when the clutch disc is not gripped firmly between the flywheel and the
pressure plate.
ANS: T PTS: 1
2. Chatter is a shuddering felt in the vehicle when the pressure plate releases the clutch disc.
ANS: F PTS: 1
3. Chatter is caused by liquid contaminants on the friction surfaces.
ANS: T PTS: 1
4. Clutch drag occurs if the clutch disc is not completely released when the clutch pedal is fully
depressed.
ANS: T PTS: 1
5. Until recently, the material that was molded or woven into facings of the clutch disk was
predominantly asbestos.
ANS: T PTS: 1
6. When compared to a diaphragm-type pressure plate, a coil spring pressure plate assembly has fewer
moving parts.
ANS: F PTS: 1
7. There is approximately 10 psi residual pressure in the hydraulic clutch lines when the clutch is in the
engaged position.
ANS: F PTS: 1
8. Shaft and lever clutch linkage are used on most modern passenger cars.
ANS: F PTS: 1
9. The fluid level in the hydraulic clutch reservoir should be approximately one-fourth inch from the top.
ANS: T PTS: 1
10. Most hydraulic clutch release systems should be adjusted once a year.
ANS: F PTS: 1
11. Some transaxles have a short, self-centering input shaft that does not require a pilot bushing or bearing.
dr.j
, ANS: T PTS: 1
12. Particles of cotton, brass, rope, and wire are added to prolong the life of the clutch disc and provide
torsional strength.
ANS: T PTS: 1
13. Coil spring-type pressure plates require less pedal effort than diaphragm-type pressure plates.
ANS: F PTS: 1
14. When the clutch is fully engaged, the release bearing is normally stationary.
ANS: T PTS: 1
15. The flywheel should not be resurfaced unless there are hot spots on its surface or the rivets on the
clutch disk have made contact with the flywheel surface.
ANS: F PTS: 1
MULTIPLE CHOICE
1. The clutch friction disc always rotates with the ______.
a. engine crankshaft c. pressure plate
b. flywheel d. transmission input shaft
ANS: D
transmission input shaft
PTS: 1
2. Torsional coil springs in the clutch disc ______.
a. absorb the torque forces
b. are the mechanical force holding the pressure plate against the driven disc and flywheel
c. are located between the friction facings
d. all answers are correct
ANS: A
absorb the torque forces
PTS: 1
3. Which of the following is probably NOT the cause of a vibrating clutch?
a. excessive crankshaft endplay c. excessive flywheel runout
b. out-of balance pressure plate assembly d. loose flywheel bolts
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, ANS: A
excessive crankshaft endplay
PTS: 1
4. When the clutch pedal is released on a hydraulic clutch linkage, the ______.
a. master cylinder piston is released by the piston return spring
b. master cylinder piston is released by hydraulic pressure
c. slave cylinder is released by hydraulic pressure
d. slave cylinder piston does not move
ANS: A
master cylinder piston is released by the piston return spring
PTS: 1
5. When the clutch is disengaged, the power flow stops at the ______.
a. transmission input shaft c. pressure plate and flywheel
b. driven disc hub d. torsion springs
ANS: C
pressure plate and flywheel
PTS: 1
6. Insufficient clutch pedal clearance results in ______.
a. gear clashing when shifting the transmission
b. a noisy front transmission bearing
c. premature release bearing failure
d. premature pilot bearing failure
ANS: C
premature release bearing failure
PTS: 1
7. When making a clutch adjustment, it is necessary to ______.
a. measure clutch pedal free travel c. check hydraulic fluid level
b. lubricate the clutch linkage d. place the transmission in reverse
ANS: A
measure clutch pedal free travel
PTS: 1
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TRUE/FALSE
1. Clutch slippage occurs when the clutch disc is not gripped firmly between the flywheel and the
pressure plate.
ANS: T PTS: 1
2. Chatter is a shuddering felt in the vehicle when the pressure plate releases the clutch disc.
ANS: F PTS: 1
3. Chatter is caused by liquid contaminants on the friction surfaces.
ANS: T PTS: 1
4. Clutch drag occurs if the clutch disc is not completely released when the clutch pedal is fully
depressed.
ANS: T PTS: 1
5. Until recently, the material that was molded or woven into facings of the clutch disk was
predominantly asbestos.
ANS: T PTS: 1
6. When compared to a diaphragm-type pressure plate, a coil spring pressure plate assembly has fewer
moving parts.
ANS: F PTS: 1
7. There is approximately 10 psi residual pressure in the hydraulic clutch lines when the clutch is in the
engaged position.
ANS: F PTS: 1
8. Shaft and lever clutch linkage are used on most modern passenger cars.
ANS: F PTS: 1
9. The fluid level in the hydraulic clutch reservoir should be approximately one-fourth inch from the top.
ANS: T PTS: 1
10. Most hydraulic clutch release systems should be adjusted once a year.
ANS: F PTS: 1
11. Some transaxles have a short, self-centering input shaft that does not require a pilot bushing or bearing.
dr.j
, ANS: T PTS: 1
12. Particles of cotton, brass, rope, and wire are added to prolong the life of the clutch disc and provide
torsional strength.
ANS: T PTS: 1
13. Coil spring-type pressure plates require less pedal effort than diaphragm-type pressure plates.
ANS: F PTS: 1
14. When the clutch is fully engaged, the release bearing is normally stationary.
ANS: T PTS: 1
15. The flywheel should not be resurfaced unless there are hot spots on its surface or the rivets on the
clutch disk have made contact with the flywheel surface.
ANS: F PTS: 1
MULTIPLE CHOICE
1. The clutch friction disc always rotates with the ______.
a. engine crankshaft c. pressure plate
b. flywheel d. transmission input shaft
ANS: D
transmission input shaft
PTS: 1
2. Torsional coil springs in the clutch disc ______.
a. absorb the torque forces
b. are the mechanical force holding the pressure plate against the driven disc and flywheel
c. are located between the friction facings
d. all answers are correct
ANS: A
absorb the torque forces
PTS: 1
3. Which of the following is probably NOT the cause of a vibrating clutch?
a. excessive crankshaft endplay c. excessive flywheel runout
b. out-of balance pressure plate assembly d. loose flywheel bolts
dr.j
, ANS: A
excessive crankshaft endplay
PTS: 1
4. When the clutch pedal is released on a hydraulic clutch linkage, the ______.
a. master cylinder piston is released by the piston return spring
b. master cylinder piston is released by hydraulic pressure
c. slave cylinder is released by hydraulic pressure
d. slave cylinder piston does not move
ANS: A
master cylinder piston is released by the piston return spring
PTS: 1
5. When the clutch is disengaged, the power flow stops at the ______.
a. transmission input shaft c. pressure plate and flywheel
b. driven disc hub d. torsion springs
ANS: C
pressure plate and flywheel
PTS: 1
6. Insufficient clutch pedal clearance results in ______.
a. gear clashing when shifting the transmission
b. a noisy front transmission bearing
c. premature release bearing failure
d. premature pilot bearing failure
ANS: C
premature release bearing failure
PTS: 1
7. When making a clutch adjustment, it is necessary to ______.
a. measure clutch pedal free travel c. check hydraulic fluid level
b. lubricate the clutch linkage d. place the transmission in reverse
ANS: A
measure clutch pedal free travel
PTS: 1
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