Manual Drive Trains and Axles Test

A gear ratio of less than 1.0 indicates an overdrive condition. a. True b. False

a. True

Equal-length shafts are used in some vehicles to help reduce torque steer. a. True b. False

a. True

Which of the following gear ratios generates the highest torque or power output? a. 0.85:1 b. 2.67:1 c. 5.23:1 d. 11.12:1

d. 11.12:1

If a drive axle shows signs of rubbing against the chassis, the vehicle should be checked for ______. a. weak or broken springs b. worn or broken engine or transmission mounts c. chassis misalignment d. All the answers are correct

d. All the answers are correct

Axle shafts with CV joints at each end are found on the ______. a. front wheels of FWD cars b. rear wheels of RWD cars with independent rear suspension c. front wheels of 4WD SUVs with independent front suspension d. All the answers are correct.

d. All the answers are correct.

Technician A loosens the CV joint axle nut using a breaker bar with the wheels on the ground and an assistant holding pressure on the brake pedal. Technician B uses an impact wrench for the same task. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

a. A only

Technician A says an overdrive gear ratio is less than 1 to 1. Technician B says overdrive ratios provide more torque than underdrive ratios. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

a. A only

Technician A says in a conventional transmission, the speed gears freewheel around the mainshaft until they are locked to it by the synchronizer. Technician Bsays when not engaged, speed gears slide away from the counter gears until they are no longer in mesh. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

a. A only

Technician A says when a small gear drives a larger gear, output speed is decreased. Technician B says when a small gear drives a larger gear, output torque is decreased. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

a. A only

While discussing the shift linkage of a typical five-speed transmission, Technician A says three shift rails are needed. Technician B says only the center shift rail is machined with interlock and detent notches. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

a. A only

Which type of joint is NOT a constant velocity type joint? a. U-joint b. Rzeppa joint c. tripod joint d. double Cardan

a. U-joint

If a noise is heard while driving straight but ceases on turns, what is the most likely cause? a. a bad wheel bearing b. a worn inner CV joint c. a worn outer CV joint d. a bad intermediate shaft bearing

a. a bad wheel bearing

Passenger cars and light trucks are now almost exclusively equipped with _____ spring-type clutches. a. diaphragm b. coil c. torsional d. eccentric

a. diaphragm

When the yokes are in the same plane, the joints are said to be ______. a. in phase b. out of phase c. balanced d. inclined

a. in phase

When installing a ball bearing that is a press fit (tight) onto the main shaft, pressure should be applied to the _____ race. a. inner b. outer c. both A and B d. neither A nor B

a. inner

When making a clutch adjustment, it is necessary to ______. a. measure the clutch pedal free travel b. lubricate the clutch linkage c. check the hydraulic fluid level d. place the transmission in reverse

a. measure the clutch pedal free travel

When an idler gear is placed between the driving and driven gear, the driven gear _____. a. rotates in the same direction as the driving gear b. rotates in the direction opposite to the driving gear c. remains stationary d. rotates faster

a. rotates in the same direction as the driving gear

Which type of drive axle supports the weight of the vehicle? a. semifloating b. three-quarter floating c. full-floating d. both A and B

a. semifloating

The component used to lock the main shaft (output shaft) and a speed gear together is the _____. a. synchronizer b. shift linkage c. shift fork d. transfer case

a. synchronizer

The release bearing slides back and forth on the hollow shaft that is part of the ______. a. transmission front bearing retainer b. pilot bearing retainer c. starter mounting boss d. transmission breather tube

a. transmission front bearing retainer

CV joints are typically used in front-wheel drive vehicles. a. True b. False

a. True

Chatter is caused by liquid contaminants on the friction surfaces. a. True b. False

a. True

Many manufacturers specify replacing the DMF (dual-mass flywheel) as part of clutch replacement. a. True b. False

a. True

Shaft and lever clutch linkage are used on most modern passenger cars. a. True b. False

a. True

Some FWD half-shaft axles are equipped with vibration damper weights. a. True b. False

a. True

The clutch and the brake system may share the same reservoir. a. True b. False

a. True

Two meshed external-cut gears turn in opposite rotations. a. True b. False

a. True

With electronic torque vectoring, during cornering, torque is sent to the outer rear wheel to reduce understeer. a. True b. False

a. True

Technician A says a hunting gearset is one in which one drive pinion gear tooth contacts only certain ring gear teeth. Technician B says a partial nonhunting gearset is one in which one pinion tooth contacts only six ring gear teeth. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

b. B only

Technician A says helical cut gears have teeth cut at a 90-degree angle to the side of the gear. Technician B says helical gears run without creating gear whine. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

b. B only

Technician A says self-shifting manual transmissions use planetary gearsets and torque converters like conventional automatic transmissions. Technician Bsays these transmissions are manual transmissions that shift gears using a computer-controlled actuator connected to the shift forks and a clutch actuator. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

b. B only

Technician A says the outer CV joints of FWD axle shafts are less likely to need replacement than the inner joints. Technician B says a worn cage or race can cause a clicking sound during a turn. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

b. B only

Technician A says the transmission allows the driven wheels to spin faster than the engine. Technician B says the transmission multiplies the torque produced by the engine. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

b. B only

While discussing transmission/transaxle rebuilding procedures, Technician A says shims located under bearing cups should always be replaced. Technician Bkeeps all shims and bearing races together and identified for reinstallation in their original location. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

b. B only

Which of the following is NOT a function of the flywheel? a. Provides a mounting surface for the starter ring gear b. Transfers torque to the transmission input shaft c. Provides a friction surface for the clutch disk d. Provides the inertia to rotate the crankshaft through the four strokes

b. Transfers torque to the transmission input shaft

A whirring, grating, or grinding sound that occurs when the clutch pedal is depressed and stops when the pedal is fully released is most likely caused by ______. a. a failed pilot bearing b. a failed release bearing c. worn release levers d. a bent release fork

b. a failed release bearing

When fourth gear is selected on a five-speed manual transmission, the synchronizer couples the ______. a. fourth speed gear to the mainshaft b. clutch (input) gear to the mainshaft c. both A and B d. neither A nor B

b. clutch (input) gear to the mainshaft

Front-engine RWD luxury-type vehicles often use a double U-joint arrangement called a ______. a. spicer style U-joint b. double Cardan-type joint c. Cleveland style U-joint d. None of the answers is correct

b. double Cardan-type joint

A shudder or vibration that occurs only when accelerating is most likely caused by ______. a. out-of-balance axle shaft b. excessive play in the inboard plunge joint c. both A and B d. neither A nor B

b. excessive play in the inboard plunge joint

Using a lubricant that is thicker than service manual specifications can lead to ______. a. gear jump-out b. hard shifting c. gear lockup d. gear slippage

b. hard shifting

To reduce gear whine, manufacturers use _____ gears. a. spur b. helical c. ellipsoidal d. parabolic

b. helical

Which of the following is NOT an advantage of a diaphragm-type clutch pressure plate assembly? a. more compact b. manually adjustable clamping pressure c. less weight d. fewer moving parts to wear out

b. manually adjustable clamping pressure

A collapsible pinion spacer is used to set the ______. a. pinion depth b. pinion bearing preload c. housing (carrier) bearing preload d. backlash

b. pinion bearing preload

Pinion gear depth is adjusted by ______. a. threaded adjusters behind the housing bearing outer cups b. shims placed between the differential housing (carrier) and housing bearings c. threaded adjusters between the companion flange and front pinion bearing d. shims placed between the pinion bearing and pinion gear

b. shims placed between the differential housing (carrier) and housing bearings

Both CV joints on a half shaft used in an RWD vehicle with independent rear suspension may be of the fixed style. a. True b. False

b. False

Chatter is a shuddering felt in the vehicle when the pressure plate releases the clutch disc. a. True b. False

b. False

Fixed-style CV joints are typically located nearest the transaxle. a. True b. False

b. False

In a differential gearset, the side gears deliver torque to the pinion gears. a. True b. False

b. False

The final drive gears in the drive axle assembly are sized to provide a gear speed increase and torque reduction. a. True b. False

b. False

U-joints rotate at a constant velocity and are vibration free. a. True b. False

b. False

Which of the following components is NOT part of a clutch disc? a. torsional damper coil spring b. cushion (wave) spring c. Belleville spring d. hub flange

c. Belleville spring

Which statement concerning dual-mass flywheels is false? a. Dual-mass flywheels are used to reduce vibrations transmitted through the transmission. b. The rotation of the two flywheel plates can differ by as much as 360 degrees. c. Dual-mass flywheels are only used on heavy trucks. d. Dual-mass flywheels provide for smoother shifting, and reduce gear noise.

c. Dual-mass flywheels are only used on heavy trucks.

A car jumps out of gear into neutral when decelerating or going down hills. Technician A checks the shift lever and internal gearshift linkage. Technician Bsays the clutch pilot bearing could be the problem. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

A rough growling noise occurs when the engine is running, the transmission is in neutral, the clutch is engaged, and the vehicle is not moving. Technician Asays the input shaft bearing may be faulty. Technician B says the countergear bearing may be faulty. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

A tripod-style CV joint is being discussed. Technician A says the outer housing is sometimes called a tulip. Technician B says the inner tripod is often called a spider. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Driveshaft speed variation is being discussed. Technician A says the speed variations at the transmission yoke end of the driveshaft are canceled out by the speed variations at the pinion flange end. Technician B says the operating angles at each end must be equal for the speed variations to cancel each other out. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Final drive ratios are being discussed. Technician A says that the final drive ratio is the gear ratio of the ring gear and pinion gear in a rear axle. Technician Bsays the final drive ratio is the gear ratio of the pinion gear and ring gear in a transaxle. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Internal slave cylinders are being discussed. Technician A says the slave cylinder and the clutch release bearing are a single unit and cannot be serviced separately. Technician B says to replace the slave cylinder, the transmission must be removed. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Pilot bearings are being discussed. Technician A says the pilot bearing supports one end of the input shaft. Technician B says the pilot bearing keeps the clutch disc centered in the pressure plate. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Ring and pinion gearset contact patterns are being discussed. Technician A says a gear tooth pattern can identify a backlash problem. Technician B says a gear tooth pattern can identify a problem with the pinion depth. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A checks the transmission mounts by pushing up and down on the transmission while observing the mounts. Technician B says if the case moves up but not down, the mounts require replacement. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says clutch linkage may be mechanically or hydraulically operated. Technician B says clutch linkage includes shaft and lever linkage and cable linkage designs. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says limited slip differential clutch packs are designed to slip slightly when the vehicle is turning. Technician B says pressure is kept on the clutch packs by either an S-shaped spring or coil springs. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says lower gears provide lower vehicle speeds but more torque. Technician B says higher gears provide less torque but higher vehicle speeds. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says the clutch allows the engine to idle while the vehicle is stopped. Technician B says the clutch is needed for gear shifting. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says the clutch assembly is located between the engine and the transmission. Technician B says the clutch provides a mechanical coupling between the engine flywheel and the transmission input shaft. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says the counter gear is actually several gears machined out of a single piece of steel. Technician B says the counter gear is driven by the clutch (main drive/input) gear and drives the mainshaft speed gears. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says the front of the transmission input shaft may be supported by a pilot bearing. Technician B says on some transaxles the input shaft is not supported by a pilot bearing. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

Technician A says the transmission output shaft seal is prone to leakage. Technician B says a worn transmission rear bushing may contribute to output shaft seal leakage. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

The backup light switch is located _____. a. on the transmission case b. on the shifter linkage c. both A and B d. neither A nor B

c. both A and B

The owner of an FWD car complains that the vehicle jumps out of second and fourth gears when he accelerates hard. Technician A says there could be insufficient clearance between the shifter boot and the shifter. Technician B says one of the engine mounts could be broken. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

c. both A and B

An excessively low lubricant level will most likely cause ______. a. gear clash b. hard shifting c. gear lockup d. gear jump-out

c. gear lockup

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

c. premature release bearing failure

When the clutch is disengaged, the power flow stops at the ______. a. transmission input shaft b. driven disc hub c. pressure plate and flywheel d. torsion springs

c. pressure plate and flywheel

Which of the following will NOT cause gear clash? a. incorrect lubricant b. incorrect clutch adjustment c. worn countergear bearings d. worn synchronizer blocking rings

c. worn countergear bearings

Manual transmission/transaxle lubricants in use today include ______. a. automatic transmission fluids b. engine oils c. multiple viscosity gear oils d. All the answers are correct.

d. All the answers are correct.

The bearing cups of a conventional U-joint are retained by ______. a. a snap ring that fits into a groove machined in the outer end of the yoke b. an external snap ring that fits into a groove machined in the bearing cup on the end closest to the grease seal c. nylon injected into machined grooves in the yoke and cup d. All the answers are correct.

d. All the answers are correct.

When the vehicle is turning left, ______. a. the left-side gear and axle shaft are turning slower than the housing (carrier) b. the right-side gear and axle shaft are turning faster than the housing (carrier) c. the differential pinion gears rotate on the pinion shaft d. All the answers are correct.

d. All the answers are correct.

Which of the following describes the double Cardan universal joint? a. It is often installed in front-engine, rear-wheel drive luxury automobiles b. It is classified as a constant velocity U-joint c. A centering ball socket is inside the coupling yoke between the two universal joints d. All the answers are correct.

d. All the answers are correct.

A technician is replacing a leaking clutch slave cylinder. After removing the cylinder, he takes it apart and finds a swollen cup seal. What should be done? a. replace the clutch slave cylinder b. replace the clutch master cylinder c. flush and bleed the system d. all answers are correct

d. all answers are correct

The VSS [vehicle speed sensor] provides information for the ______. a. speedometer b. cruise control system c. upshift lamp d. all answers are correct

d. all answers are correct

A(n) _____ gear is used to transfer motion without changing rotational direction. a. differential b. spur c. counter d. idler

d. idler

When a large gear drives a smaller gear, the output speed _____. a. decreases and torque decreases b. decreases and torque increases c. increases and torque increases d. increases and torque decreases

d. increases and torque decreases

A growling noise that occurs when the transaxle is in neutral, the vehicle is not moving, the engine is running, and the clutch is engaged is most likely caused by the ______ bearing. a. clutch pilot b. differential carrier c. output shaft d. input shaft

d. input shaft

When the 1-2 shift rail is moved into first gear, the 3-4 and 5-R shift rails are prevented from moving by the ______. a. detent ball and spring b. shifter plate c. shift fork d. interlock pin

d. interlock pin

Gear ratios are being discussed. Technician A says higher gear ratios allow for higher vehicle speeds and more torque. Technician B says lower gear ratios provide less torque and reduce vehicle speed. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

d. neither A nor B

Technician A says axles with a numerically high gear ratio (such as 4.11) allow the engine to run slower at any given speed, resulting in better fuel conservation. Technician B says axles with a numerically low gear ratio (such as 2.83) allow for fast acceleration and good pulling power. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

d. neither A nor B

Technician A says spur-cut gears have teeth cut at an angle. Technician B says spur-cut gears run without creating gear whine. Who is correct? a. A only b. B only c. both A and B d. neither A nor B

d. neither A nor B

The two driving members (inputs) of the clutch assembly are the flywheel and the ______. a. clutch disk b. transmission input shaft c. pilot bearing d. pressure plate

d. pressure plate

Full floating axle shafts are found on ______. a. front axles of an FWD car b. rear axle of an RWD car c. front axle of a 4WD SUV d. rear axle of a heavy duty truck

d. rear axle of a heavy duty truck

In a five-speed manual transmission/transaxle, an idler gear is used for _____ gear(s). a. first, second and third b. direct drive (fourth gear) c. overdrive (fifth gear) d. reverse

d. reverse

Which of the following is NOT one of the basic manual transmission shafts? a. input shaft b. countershaft c. mainshaft d. transfer shaft

d. transfer shaft

The clutch friction disc always rotates with the ______. a. engine crankshaft b. flywheel c. pressure plate d. transmission input shaft

d. transmission input shaft