Final A term

Technician A says that you should always mark parts so they can go back in original location. technician b says he has better things to do. who is correct?

Technician A only

The U-joint working angles on most truck driveshaft assemblies should generally not exceed:

a. 3 degrees

Which gear lube viscosity rating is usually recommended for use in a differential carrier for a truck operating in temperatures of -30°F (-34°C)?

a. 75W

What is the function of a driveshaft slip spline joint?

a. It allows the driveshaft to change length while transmitting torque.

In order for torque multiplication to take place in a torque converter, which of the following should be true?

a. The pump/impeller must turn faster than the turbine.

Which type of gear is more likely to develop gear whine at higher speeds?

a. a spur gear

Which of the following devices has an operating principle similar to that of a hydraulic retarder?

a. a torque converter

Which of the following tools should be used to measure the inclination of a driveline component?

a. an inclinometer

Which type of hydraulic retarder is located between the torque converter and the transmission gearing?

a. an input retarder

What is the function of a current clutch brake used in a heavy-duty drivetrain?

a. and c only

Grooves worn into the trunnions by the bearings are called:

a. brinnelling

Which of the following clutch components is a driven member?

a. clutch friction disc

The OEM recommendation for U-joint lubrication interval scheduling on a truck used for an on-highway operation should be:

a. every 10,000 to 15,000 miles (16,000 to 24,000 km)

Which of the following restricts normal differential action except during cornering?

a. no-spin locking differentials

On which of the following types of flywheels would the center intermediate plate be driven by drive pins?

a. pot flywheel

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

The component used to ensure that the main shaft and the main shaft gear about to be locked to it are rotating at the same speed is known as a:

a. synchronizer

Which of the following OEM-approved lubricants would produce the longest service life in a standard transmission?

a. synthetic E-500 gear lube

In a tandem axle power divider, which component drives the helical gear set?

a. the input shaft

Which of the following would be a factor in defining the reduction ratio in differential carrier gearing?

a. the number of teeth on crown gear

Which of the torque converter components is known as the driving member?

a. the pump/impeller

When the planetary carrier of a simple planetary gearset is the held member:

a. there is a reverse in rotation direction at the output member

What is the function of split guide rings in a torque converter?

a. to reduce turbulence

At torque converter coupling phase:

a. vortex flow is at a minimum

If an engine produces 600 pound feet of torque, when this is multiplied by a 10:1 gear ration in the transmission it produces _________ of torque at the driveshaft.

b. 6000 pound feet

what is the pitch of the gear in illustration?

b. 7

Which one of the following statements is true of a torque converter when comparing it with a standard fluid coupling?

b. A torque converter is capable of multiplying torque.

For which of the following is an Anglemaster used?

b. Checking driveshaft angles

Technician A says that a damaged transmission output yoke can be repaired by installing a yoke sleeve kit. Technician B says that a damaged transmission output yoke should always be replaced. Who is correct?

b. Technician B only

Technician A says that an advantage of using synthetic transmission lubes is that they are compatible with all other gear lubes. Technician B says that high-gear lube level in a standard transmission can cause aeration and result in lubrication failures. Who is correct?

b. Technician B only

Technician A says that new stub shafts are shipped coated with blue plastic that should be completely removed prior to assembly. Technician B says that male slip spline stubs are coated with Glidecoat because it is wear resistant and lasts the life of the driveshaft. Who is correct?

b. Technician B only

Which of the following is true during the torque converter coupling phase?

b. Turbine speed is just slightly slower than impeller speed.

What is the correct method for removing rivets from a crown gear assembly?

b. Use a drill and punch.

The photo shows a clutch ..... mechanism.

b. adjustment

Which type of hydraulic retarder applies a friction clutch while the unit is charging with hydraulic fluid?

b. an output retarder

Where is the stator located in a torque converter assembly?

b. between the pump/impeller and turbine

What results when any two members of a simple planetary gearset are locked together to act as the input?

b. direct 1:1 drive

Which of the following is said by transmission OEMs to cause most transmission bearing failures?

b. dirt

Which of the following should be used to remove minor heat discoloration from a clutch pressure plate?

b. emery cloth

Which pinion and crown gear arrangement positions the pinion gear below the centerline of the crown gear?

b. hypoid

Which of the following would be least likely to affect driveshaft balance?

b. missing U-joint zerk fitting

Which type of transmission requires double-clutching between shifts?

b. nonsynchronized

Which of the following would indicate that the level was correct when checking lube oil level in a differential carrier housing with the fill plug removed?

b. oil level exactly even with the bottom of the fill hole

Which of the following does the most to determine the position of the governor valve?

b. output speed

An auxiliary mechanical drive for truck accessories driven by the transmission is known as a(n):

b. power take-off (PTO) unit

What regulates main pressure in an Allison automatic transmission?

b. the main pressure regulator

What assists governor pressure in moving any shift signal shafts during an upshift?

b. the modulator valve

Which of the torque converter components is responsible for torque multiplication?

b. the stator

What medium is used to transfer energy through a torque converter when it is not in lockup mode?

b. transmission fluid

In a torque converter, which type of fluid flow has the effect of multiplying torque?

b. vortex flow

Technician A says that lack of lubrication damage can be caused in a standard transmission when coasting with the clutch depressed. Technician B says that when towing a truck from the front, the axle shafts should be pulled. Who is correct?

c. both A and B

spin out failure can always be attributable to ...

c. driver abuse

How many planetary gearsets are used in an Allison five-speed automatic transmission?

c. four

In the procedure required to perform a clutch replacement on a truck, which of the following steps should be performed first?

c. install a clutch alignment tool threw the release bearing.

when installing the trust screw you install until it stops then back out..... turn

c. 1/2 turn

a measurement ..... clearance is needed between release fork lever and bearing on both pull type and push type pressure plates.

c. 1/8"

shaft end play can be measured with a .......

c. Dial indicator

Which of the following would indicate that transmission oil in a truck standard transmission is at the correct level?

c. Oil is level with the filler hole.

What results if a large external tooth gear is meshed with and driving a smaller external tooth gear?

c. Output speed increases; output direction is the reverse of input.

What is commonly used to mount a torque converter to the engine crankshaft?

c. a flexplate

When is rotary fluid flow at a maximum during torque converter operation?

c. at coupling phase

When inspecting the mating faces of a clutch bell housing, which of the following can be regarded as the critical wear area?

c. between 3 o'clock and 8 o'clock clockwise

A driver complains that the vehicle jumps out of gear when driven over a bumpy road surface. Technician A says that the problem could be worn detent notches in the shift rail. Technician B says that the problem could be worn gear clutch teeth. Who is correct?

c. both A and B

Oil is discovered to be leaking from the rear seal area of a standard transmission. Technician A says that the problem could be a damaged speedometer sleeve O-ring or gasket. Technician B says that the problem could be caused by a cracked bearing cover. Who is correct?

c. both A and B

Technician A says that driveshaft working angles can be adjusted by adding wedge shims to the spring seats of a leaf spring suspension system. Technician B says that loose engine or transmission mountings can cause excessive driveline angularity resulting in vibration. Who is correct?

c. both A and B

Technician A says that during differential action on a drive axle in a turn, the speed increase on the outboard wheel has to be inversely proportional to the speed decrease on the inboard wheel. Technician B says that pinion spiders walk at any time there is differential action. Who is correct?

c. both A and B

In a close ratio transmission, all powerflows must pass through the __________ before reaching the output shaft.

c. low planetary gearset

What is the most common lockup clutch design used in heavy-duty torque converters?

c. piston

Which of the following can be considered the largest gear in a simple planetary gearset?

c. the carrier assembly

What component helps avoid shift shock by reducing pressure to the clutch apply circuits during initial application and then gradually increasing the pressure?

c. the trimmer valve

Which torque converter component is splined to a shaft that connects to the forward clutch of the transmission?

c. the turbine

Which of the following gear ratios indicates the most amount of overdrive?

d. 0.64:1

A center support bearing is usually required on drivelines that exceed ________ in length.

d. 70 in

How often should a clutch be inspected and lubricated?

d. All of the above

What is the function of a rear drive axle on a truck?

d. All of the above

Which of the following could be a cause of poor clutch release?

d. All of the above

Which of the following driving procedures will result in clutch or driveline damage?

d. All of the above

When lubricating a U-joint, fresh grease appears at all four trunnion seals. Which of the following is probably true?

d. The U-joint has been properly lubricated.

Which of the following measuring tools should be used to check crown gear runout?

d. a dial indicator

Which of the following does most to determine modulator pressure?

d. accelerator pedal position

Which of the following is not a part of the clutch cover assembly?

d. adapter ring

U-joint failures, hanger bearing failures, and driveline vibrations are caused by:

d. all of the above

What is the function of multiple-disc clutches in a truck hydromechanical automatic transmission?

d. both a and b

Which of the following adjustments is made on nonsynchronized transmissions only?

d. clutch brake squeeze

Which of the following clutch components is splined to the input shaft of the transmission?

d. clutch friction disc

What is the minimum total number of driveshaft U-joints that would have to be used on a tandem drive axle truck equipped with a hanger bearing on the front driveshaft?

d. five

When regarding the operation of a typical 15½-inch clutch, which of the following components constantly rotates at engine rpm?

d. intermediate plate

In which of the following phases would the drive efficiency of a torque converter be at 100 percent?

d. lockup

Which type of failure is usually indicated when a shaft fails, producing a star-shaped fracture pattern?

d. torsional failure

The function of the clutch is to ..... torque from engine flywheel to transmission

d. transfer

true or false. a limited torque is a type of clutch brake.

true

true or false. a transmission brake disc can be replaced without removing transmission.

true

true or false. clutch linkage can be air controlled.

true

true or false. mechanical clutch linkages may include cable operated system.

true

true or false. pedal lash is the same as free play.

true

true or false. the intermediate plate is a drive plate.

true