Manual Trans Exam 1

A diaphragm clutch uses ________.

12 strong coil springs Three wide release levers Neither A or B

If a gear with 20 teeth is driving a gear with 60 teeth, the gear ratio is_________.

3:1

At a constant vehicle speed, which gear ratio will result in higher engine RPM?

3:1 higher RPM

The transmission is in first gear, which has a 2.5:1 ratio, and the rear axle has a ratio of 2:1. The overall gear ratio is ________.

5:1

Which of these components is the clutch disc?

A

A cable-operated clutch is being adjusted. Technician A says that free travel is measured at the clutch pedal and should be between 3/4 and 1 inch (19 to 25 mm). Technician B says that the clutch spin-down time should be less than two seconds. Which technician is correct?

A only (19 to 25 mm)

Insufficient slave cylinder travel means ________ in the system.

Air

During clutch installation, the clutch disc can be aligned to the pilot bearing using ________.

An old transmission shaft A plastic dummy transmission shaft A commercial clutch disc alignment tool

Release levers move the pressure ring ________.

Away from the clutch disc

A vehicle has a slipping clutch. Technician A says that slippage will be most noticeable when accelerating in first gear. Technician B says that a clutch slip test can be performed in the shop. Which technician is correct?

B only slip test

Technician A says that a clutch disc is aligned with the flywheel automatically when the pressure plate bolts are tightened properly. Technician B says that a tool should be used to align the clutch disc during installation. Which technician is correct?

B only tool should be used to align

Technician A says that clutch slippage can be caused by a warped clutch disc. Technician B says that slippage is the result of a worn clutch disk. Which technician is correct?

B only worn disk clutch

Which of these components is NOT part of a dual mass flywheel?

Ball bearings Primary and secondary flywheel Springs Grease fitting

(according to the book) - The power output from an automotive engine ________.

Begins at about 1000 RPM and increases up to the maximum RPM

A clutch disc is being installed. Technician A says that the damper assembly (torsional springs) of the clutch disc normally faces the pressure plate. Technician B says that the disc splines should be lightly lubricated. Which technician is correct?

Both (torsional springs)

Technician A says that an AWD car must have a differential in each drive axle. Technician B says that an AWD car must have a differential between the two drive axles. Which technician is correct?

Both A & B AWD

Technician A says that there are at least four parts that should be replaced when doing a clutch job: the pressure plate, disc, release bearing, and pilot bearing. Technician B says that breathing the dust from a worn pressure plate or disc can cause lung cancer. Which technician is correct?

Both Breathing Dust

Technician A says that CV joints are used so the front wheels can turn sharp corners. Technician B says that CV joints are used to prevent jerky steering wheel motions while turning. Which technician is correct?

Both CV joints

Two technicians are discussing the marcel portion of a clutch disc. Technician A says that the lining is riveted to the marcel at one side of each wavy portion. Technician B says that the lining is (glued) bonded solidly to the marcel. Which technician is correct?

Both Techs Marcels

While discussing the installation of a pressure plate, technician A says that grade 8 hardware can be used for the mounting bolts. Technician B says that you need to move from bolt to bolt at least two times while tightening the bolts (torque in a stepped pattern). Which technician is correct?

Both grade 8

Technician A says that a pilot bearing can be removed using chassis grease and a round rod. Technician B says that all pilot bearings may need a thin coating of grease after installation. Which technician is correct?

Both grease and round rod

Technician A says that dual mass flywheels cannot be resurfaced. Technician B says that some worn flywheels can be resurfaced. Which technician is correct?

Both resurfaced

Which one of the following drivetrain parts disengages engine power from the rest of the drivetrain?

Clutch disengages

What component is missing from this starter circuit (circle)?

Clutch switch

Which term describes the relative amount of friction between two surfaces?

Coefficient of Friction

A squeal is heard as the clutch pedal is depressed about one inch. This is probably caused by a ________.

Defective or worn release (throwout) bearing

Most hydraulic clutch systems use what hydraulic fluid?

Dot 3 brake fluid

A differential ________.

Drives two wheels at different speeds

A clutch switch is used to ________.

Ensure the clutch is disengaged /Prevent the engine from starting unless the clutch pedal is depressed

Which is NOT a problem usually found with a clutch disc?

Expanded Marcel

When the drive gear has a smaller diameter and fewer teeth than the driven gear, it is referred to as ________.

Gear reduction

Clutch chatter can be caused by ________.

Grease or oil on the clutch facing

The most commonly used clutch linkage is ________.

Hydraulic

A gear set used to transmit power between two shafts that meet at a right angle is the ________.

Hypoid gear set Spiral bevel gear set Both A and B

What part does NOT rotate when the engine is running and the clutch is depressed?

Input Shaft

In a hydraulic clutch, the slave cylinder ________.

Is pushed by fluid pressure Is connected to the clutch pedal Both A and B

Which car requires the most transmission gear ratios?

Light car, big engine

Which of these is NOT one of the basic styles of pressure plates?

Marcel

Technician A says that all that FWD vehicles use U-joints on the front drive axles. Technician B says that all RWD vehicles use CV joints on their rear drive axles. Which technician is correct?

NEITHER tech FWD U joints

Technician A says that a gear reduction decreases torque. Technician B says that a gear reduction increases speed. Which technician is correct?

Neither Tech gear reduction

What part is often NOT used on a front wheel drive vehicle with a manual transaxle?

Pilot Bearing

What should be lubricated when replacing a clutch assembly?

Pilot bearing Disc splines Pivot bushings

When measuring flywheel radial runout ________.

Position the dial indicator at the edge of the flywheel

Most nonmetallic clutch facings have grooves cut across their surface to ________.

Prevent sticking and clutch drag Wipe the surface of the flywheel Both A and B

A dual-mass flywheel is used to ________.

Reduce vibration

The major bearing(s) used with a clutch assembly is (are) the ________.

Release bearing that is mounted at the front of the transmission Pilot bearing that supports the end of the transmission input shaft Both A and B

The clutch pedal overcenter spring is used to help ________.

Release the clutch Return the clutch pedal to the released position Both A and B

When checking a clutch disc for warpage, a quick check is to ________.

Set the disc flat against the flywheel

When the clutch is engaged (pedal up) ________.

Springs force the pressure plate toward the flywheel

Technician A says that a helical gear is stronger than a spur gear. Technician B says that a helical gear is noisier than a spur gear. Which technician is correct?

Tech A helical gear

Technician A says that the clutch pedal pushes directly on the pressure plate. Technician B says that the slave cylinder is mounted near the clutch pedal in most vehicles. Which technician is correct?

Tech A only clutch pedal pushes

Technician A says that asbestos lining is no longer used because it is too expensive. Technician B says that asbestos lining has been phased out because it presents a health hazard. Which technician is correct?

Tech B asbestos linings

Technician A says that a clutch must engage completely, all at once. Technician B says that the clutch must slip during engagement. Which technician is correct?

Tech B clutch must slip

Technician A says that a differential provides the gear reduction needed in the drive axle. Technician B says that the differential can drive two wheels at different speeds. Which technician is correct?

Tech B differential

Technician A says that spur gears are quieter than helical gears. Technician B says that helical gears produce greater thrust forces than spur gears. Which technician is correct?

Tech B helical gears

Springs are mounted at the center of a clutch disc. Technician A says they help increase clutch pressure for more torque. Technician B says they absorb engine torsional vibrations. Which technician is correct?

Tech B only Absorb engine

A car's drivetrain can send power to ________.

The rear wheels The front wheels Either A or B

When the clutch is released (clutch pedal down) ________.

The release (throwout) bearing is used to move the pressure ring toward the clutch cover

When a clutch is released ________.

The release bearing is pushing against the spring fingers The pressure plate springs are compressed Both A and B

Flywheels are constructed of cast iron because ________.

They have a lot of inertia Can be resurfaced They contain about 3% carbon which acts as a lubricant for the clutch All of the above

The turning form of mechanical power that passes through a rotating shaft is called ________.

Torque

Gear ratios can be used to increase ________.

torque