Manual Drive Train A3
Technician A says a self-adjusting clutch control cable may adjust itself when the pedal is depressed. Technician B says self adjusting cable-type clutches have constant-running release bearings. Who is correct?
BOTH
Technician A says all-wheel drive vehicles spread the tractive effort to all four driving wheels. Technician B says all-wheel drive vehicles operating under normal conditions are driving in 2WD. Who is correct?
BOTH
Technician A says seals that are incorrectly installed can cause a leak in a transfer case. Technician B says noises in a transfer case or a differential can be caused by bad bearings. Who is correct?
BOTH
Technician A says the inner race of the Rzeppa CV-joint is connected to the drive axle. Technician B says the ball bearings rotate on a trunnion within the outer housing. Who is correct?
BOTH
Technician A says the mechanic's style U- joint bearing cups are held in place by metal lock rings. Technician B says some U- joints are held in place by injected nylon locks. Who is correct?
BOTH
Technician A says the purpose of a transfer case is to transfer power to an additional drive axle. Technician B says most transfer cases have two speeds which affect the overall gear ratio of the vehicle. Who is correct?
BOTH
DCTs were first put into production by _____. Volkswagen Borg Warner BMW Porsche
Borg Warner
A viscous coupling must be used with a center differential.
F
At least four bearings are found in all differentials: one over the drive pinion shaft with the other three supporting the differential case.
F
Performance flywheels are usually made of nodular cast iron.
F
Sequential manual transmissions (SMTs) work like typical manual transmissions, except automatic actuators shift the gears and work the clutch.
F
The most complex transmissions are those used in most high-performance vehicles.
F
The overhung-mounted pinion has three bearings supporting the pinion.
F
The transmission in a RWD vehicle is also called a transaxle.
F
Viscous coupling differentials send power to the axle or wheel that has the least traction.
F
When normal operating loads are great, gear trains are often preloaded to increase the deflection of parts.
F
Shifting between _____ can be done at a stop or while driving at any speed. 4WD-Auto and 4WD-High 4WD-High and 4WD-Low 4WD-Low and 4WD-Auto 4WD-Low and 4WD-High
N 4WD-Low and 4WD-High
Final drive ratio is being discussed. Technician A says a transmission gear ratio of 3.63 and a final drive axle ratio of 3.52, the overall gear ratio is 7.11. Technician B says the overall gear ratio is 12.78. Who is correct?
N A
Technician A says part-time four-wheel drive systems are manually operated. Technician B says all four-wheel drive systems are automatically controlled without driver involvement. Who is correct?
N A
Technician A says both MG1 and MG2 are used to power the drive wheels in a Toyota hybrid drive system. Technician B says only MG1 is used to drive the wheels. Who is correct?
N BOTH
Technician A says power can be locked into all four wheels merely by turning the locking hubs into the locked position. Technician B says some transfer cases use an electric switch to engage 4WD. Who is correct?
N BOTH
A(n) _____ is a fully automated, manual transmission with two computer-controlled clutches. SMT DCT CVT SST
N CVT
A CVT without a torque converter may use a(n) _____. dual-clutch flywheel start clutch planetary gear initial start pulley
N dual-clutch flywheel
The release levers in the typical coil spring type clutch pivot on the _____ and release lever yokes to move the pressure plate through its engagement and disengagement operations. springs levers threaded bolts pedestals
SPRINGS
A drive shaft must smoothly transfer torque while rotating, changing length, and moving up and down.
T
A transaxle for a front-wheel drive car is usually mounted cross-wise with the engine.
T
A two-piece drive shaft is also referred to as a split drive shaft.
T
All synchronizers use friction to synchronize the speed of the gear and shaft before the connection is made.
T
Backlash is the clearance between two gears in mesh.
T
Both 4WD and AWD systems add cost and weight to a vehicle.
T
Dual-clutch transmissions can change gears faster than any other geared transmission.
T
Four-wheel-drive is most useful when a vehicle is traveling off the road or on any slippery surface.
T
Many late-model vehicles with 4WD systems have the ability to automatically switch from 2WD to 4WD.
T
Most transfer cases use drive chains.
T
Most transfer cases, with low range available, use planetary gearsets.
T
Outer joints typically wear at a higher rate than inner joints because of the increased range of operating angles to which they are subjected.
T
The clutch disc is covered with frictional material on both sides.
T
The clutch shaft extends from the front of the transmission and is splined.
T
Torque converters use fluid flow to transfer motion from the engine to the transmission.
T
Torque steer is more prominent on FWD vehicles with high-output engines.
T
What are the main components of the drive train? clutch, transmission, differential, and engine clutch, transmission, differential, and torque converter clutch, transmission, differential, and drive axles clutch, transmission, differential, and gear system
clutch, transmission, differential, and drive axles
Like the Rzeppa CV joint, the ____ uses six balls in a cage and inner and outer races. cross-groove CV joint tripod CV joint double-offset CV joint countertrack CV joint
double-offset CV joint
Which component is the driven member of the clutch assembly? clutch disc flywheel pressure plate assembly release yoke
flywheel
To combat the adverse effects of torque steer, manufacturers will limit the _____ of their engine to avoid severe torque steer. weight size horsepower output power input
horsepower output
What pin moves out of its notch and prevents the other shift rails from moving so that the transmission cannot be in two gears at once? clutch interlock detent zeroshift
interlock
The Rzeppa CV-joint contains ____ ball bearings. 3 to 6 6 to 10 10 to 12 13 to 15
3 to 6
A viscous clutch is a single-disc clutch assembly housed in a sealed container filled with a special fluid.
F
A bell housing is another name for a clutch housing.
T
The clutch cover is bolted to the _____. friction disk flywheel car frame engine block
flywheel
Most drive shafts in a front-engine, rear-wheel drive car have at least _____. one universal joint two universal joints three universal joints two slip joints
two universal joints
Technician A says a transfer case may have a limited-slip, viscous-type clutch assembly. Technician B says a transfer case may have a multiple plate clutch assembly for limited slip. Who is correct?
BOTH
The drive shaft has a natural vibration frequency.
T
