Deck 6: Automotive Bearings and Sealants

Question 1

Two technicians are discussing wheel bearing lubricants. Technician A says that grease is the lubricant used on wheel bearings and suspension parts. Technician B says that there is only one type of wheel bearing grease. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 1

A

Question 2

RTV must be matched to the application for which it is being used for.

Answer 2

True

Question 3

Two technicians are discussing bearing inspection. Technician A says that bearings should be inspected and serviced when doing a brake job. Technician B says that improper installation is never a cause of bearing failure. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 3

A

Question 4

Most bearing failures result directly from improper installation.

Question 5

What is true of installing bearing grease?

A)Do not fill the hub completely with grease.
B)Grease can melt if installed improperly.
C)Grease must be the correct type for the application.
D)All solvent must be dried before installing new grease.

Question 6

A cotter key is a type of snapring.

Question 7

Which of the following is not used to remove a race?

A)Hammer
B)Puller
C)Punch
D)Screwdriver

Question 8

A large flat-tipped screwdriver can be used to remove a seal

Question 9

Two technicians are discussing bearing loads. Technician A says that axial loads are also called thrust loads. Technician B says that radial load is also a load measurement. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 10

The purpose of bushings is to limit the radial movement of a shaft.

Question 11

Two technicians are discussing bearing inspection. Technician A says that you can reuse a race if only the bearing is damaged. Technician B says that bearings come pre-lubricated from the factory. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 12

Two technicians are discussing bearing inserts. Technician A says that bearing inserts are used in wheel bearings. Technician B says bearing inserts prolong bearing life. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 13

Boots on the durm brake's wheel cylinders keep the brake fluid inside the bore.

Question 14

Two technicians are discussing race installation. Technician A says that there are drivers to install races properly. Technician B says that a race will self-align while installing. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 15

All rollers or balls of a bearing must be lubricated for a bearing to be properly lubricated.

Question 16

Bearings must be greased with the correct grease or they may fail.

Question 17

A screwdriver may be used to remove the dust cap.

Question 18

Which type of bearing utilize balls?

A)Wheel bearings
B)Ball bearings
C)Roller bearings
D)Thrust bearings

Question 19

What are the machined areas with fine, smooth finishes on a crankshaft?

A)Bearing journals
B)Bearing inserts
C)Gaskets
D)Housings

Question 20

Roller bearings have an inner and outer race.

Question 21

Where are seals normally used?

Question 22

Describe paper gaskets and their use.

Question 23

Two technicians are discussing intake and exhaust gaskets. Technician A says that these gaskets must stand up to high temperatures. Technician B says that these gaskets do not expand or contract very well. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 24

What term is used to describe how a plain bearing is properly fitted tightly in its mount?

Question 25

What is true of bushings?

A)Bushings are made of thin copper tubing.
B)Bushings are generally copper coated.
C)Bushings are  used in high thrust load applications.
D)Bushings are usually made one size.

Question 26

What is another name for a thrust load?

Question 27

What type of damage to a bearing results in pieces falling off?

Question 28

Name two types of bearing inserts other than piston bearings.

Question 29

What type of seal is shaped like a bracelet without a clasp and fits into a groove in a component to provide a seal?

Question 30

Two technicians are discussing head gaskets. Technician A says head gaskets are typically made from paper. Technician B says head gaskets are under the most force of any gasket. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 31

Gaskets are used to _____.

A)lubricate ball bearings
B)retain lubricants or seal a chamber
C)buffer moving components
D)support axial and radial loads

Question 32

What is the main cause of bearing failure?

Question 33

Describe ball bearings.

Question 34

What type of bearing failure is indicated by dents in the bearing or race?

Question 35

Describe a roller bearing.

Question 36

What are the three subclasses of wheel bearing grease?

Question 37

What two items are used to compute bearing load?

Question 38

What is the most common seal used in automotive applications?

Question 39

Room temperature vulcanizing chemical sealants _____.

A)come only in one color
B)typically cures in 48 hours
C)will bond to the gasket
D)cures when exposed to air

Question 40

What are bearing inserts also known as?