Question 1

Geared, torque-sensitive mechanical limited-slip differentials use _____ gears which react to an increase or decrease in torque at one of two shafts.

Accepted Answer

A)   hypoid
B)   limited-slip
C)   helical
D)   worm D

Question 2

What is bolted to the axle and contains all of the information needed to identify the axle for diagnosis and service?

Accepted Answer

An axle identification tag is bolted to the axle and contains all of the information needed to identify the axle for diagnosis and service.

Question 3

The overhung-mounted pinion has three bearings supporting the pinion.

Accepted Answer

A) True 
 B)False  False

Question 4

What part is used to prevent the lubricant from leaking out of the housing of a straight roller axle bearing?

Accepted Answer

A)   oil seal
B)   grease seal
C)   rubber seal
D)   flange

Question 5

The teeth of a hypoid gear are _____, causing a wiping action when meshing.

Accepted Answer

A)   circular
B)   straight in a line
C)   curved to follow a spiral
D)   elliptical

Question 6

What is the metal unit encasing the differential side gears and pinion gears to which the ring gear is attached?

Accepted Answer

The answer of What is the metal unit encasing the...

Question 7

When engines are placed longitudinally in the car, they are said to have "north/south" placement.

Accepted Answer

A) True 
 B)False

Question 8

RWD final drives normally use a hypoid ring and pinion gearset that turns the power-flow 45 degrees from the drive shaft to the drive axles.

Accepted Answer

A) True 
 B)False

Question 9

The differential case is mounted on _____ so that it is able to rotate independently of the drive axles.

Accepted Answer

A)   shafts
B)   gears
C)   bearings
D)   pinions

Question 10

A _____ gearset is one in which any one pinion tooth comes into contact with only some of the ring gear teeth. One revolution of the ring gear is required to achieve all possible gear tooth contact combinations.

Accepted Answer

A)   hunting
B)   nonhunting
C)   partial nonhunting
D)   hypoid

Question 11

_____ express the number of turns the drive gear makes compared to one turn of the driven gear it mates with.

Accepted Answer

A)   Rotations
B)   Gear ratios
C)   Circulations
D)   Combinations

Question 12

What is meant by the term axle ratio?

Accepted Answer

The answer of What is meant by the term axle...

Question 13

What is the difference between a live axle and a dead axle?

Accepted Answer

The answer of What is the difference between a live...

Question 14

Preload in bearings eliminates _____.

Accepted Answer

A)   torque
B)   pressure
C)   breakage
D)   looseness

Question 15

The _____ is the final set of reduction gears the engine's power passes through on its way to the drive wheels.

Accepted Answer

A)   final fear
B)   final drive
C)   drive shaft
D)   driveline

Question 16

What type of gearset allows the drive shaft to be positioned low in the vehicle because the final drive pinion gear centerline is below the ring gear centerline?

Accepted Answer

The answer of What type of gearset allows the drive...

Question 17

Backlash is the clearance or play between two gears in a mesh.

Accepted Answer

A) True 
 B)False

Question 18

Technician A says that there are three designs of axle shaft bearings: ball-type, straight roller, and C-type roller bearings. Technician B says that the three designs are: ball-type, straight roller, and tapered roller bearings. Who is correct?

Accepted Answer

A)   A only
B)   B only
C)   both A and B
D)   neither A nor B

Question 19

At least four bearings are found in all differentials: one over the drive pinion shaft with the other three supporting the differential case.

Accepted Answer

A) True 
 B)False

Question 20

The main types of _____ are torque sensitive, speed sensitive, or mechanically locked.

Accepted Answer

A)   limited-slip differentials
B)   locked differentials
C)   gear sets
D)   clutch packs

Exam 7: Differentials and Drive Axles Servicing Differentials and Drive Axles

Geared, torque-sensitive mechanical limited-slip differentials use _____ gears which react to an increase or decrease in torque at one of two shafts.

What is bolted to the axle and contains all of the information needed to identify the axle for diagnosis and service?

The overhung-mounted pinion has three bearings supporting the pinion.

What part is used to prevent the lubricant from leaking out of the housing of a straight roller axle bearing?

The teeth of a hypoid gear are _____, causing a wiping action when meshing.

What is the metal unit encasing the differential side gears and pinion gears to which the ring gear is attached?

When engines are placed longitudinally in the car, they are said to have "north/south" placement.

RWD final drives normally use a hypoid ring and pinion gearset that turns the power-flow 45 degrees from the drive shaft to the drive axles.

The differential case is mounted on _____ so that it is able to rotate independently of the drive axles.

A _____ gearset is one in which any one pinion tooth comes into contact with only some of the ring gear teeth. One revolution of the ring gear is required to achieve all possible gear tooth contact combinations.

_____ express the number of turns the drive gear makes compared to one turn of the driven gear it mates with.

What is meant by the term axle ratio?

What is the difference between a live axle and a dead axle?

Preload in bearings eliminates _____.

The _____ is the final set of reduction gears the engine's power passes through on its way to the drive wheels.

What type of gearset allows the drive shaft to be positioned low in the vehicle because the final drive pinion gear centerline is below the ring gear centerline?

Backlash is the clearance or play between two gears in a mesh.

Technician A says that there are three designs of axle shaft bearings: ball-type, straight roller, and C-type roller bearings. Technician B says that the three designs are: ball-type, straight roller, and tapered roller bearings. Who is correct?

At least four bearings are found in all differentials: one over the drive pinion shaft with the other three supporting the differential case.

The main types of _____ are torque sensitive, speed sensitive, or mechanically locked.