Question 1

Why is it not advisable to spin a wheel bearing with compressed air?

Accepted Answer

Do not spin a wheel bearing with compressed air. Spinning a dry bearing can damage it and can also be dangerous if bearings come loose from the bearing cage.

Question 2

____________________ roller bearings are used for front-wheel bearings because they can control end thrust when they are installed with their tapers facing in opposite directions.

Accepted Answer

Tapered

Question 3

Which of the following statements is LEAST-Likely true?

Accepted Answer

A)  Greases are fibrous and there are different sizes of fibers available. 
B)  The National Lubricating Grease Institute (NLGI) defines grease consistency in NLGI grade numbers. 
C)  A grease with a lower NLGI number is softer and is more likely to leak. 
D)  An all-season lubricant is used only in colder climates. 
A)  Greases are fibrous and there are different sizes of fibers available. 
B)  The National Lubricating Grease Institute (NLGI) defines grease consistency in NLGI grade numbers. 
C)  A grease with a lower NLGI number is softer and is more likely to leak. 
D)  An all-season lubricant is used only in colder climates. D

Question 4

Which of the following is LEAST-Likely a part of the wheel bearing assembly?

Accepted Answer

A)  Thrust washer 
B)  Rotor 
C)  Hub and disc 
D)  Nut 
A)  Thrust washer 
B)  Rotor 
C)  Hub and disc 
D)  Nut

Question 5

What test would you perform to make sure that the wheel bearing is not too tight?

Accepted Answer

To test a wheel bearing to see that it i

Question 6

____________________ grease has a consistency that allows it to be applied through a zerk fitting with a grease gun.

Accepted Answer

The answer of ____________________ grease has a consistency that allows...

Question 7

____ grease is resistant to heat. It is usually thicker and specially formulated for use with various types of bearings.

Accepted Answer

A)  Solid 
B)  Chassis 
C)  Wheel bearing 
D)  Universal joint 
A)  Solid 
B)  Chassis 
C)  Wheel bearing 
D)  Universal joint

Question 8

A grease made from petroleum should not be used at temperatures in excess of 4000F unless it is being changed every hour or two.

Accepted Answer

A) True 
 B)False

Question 9

While having a discussion, Technician A says that brinelling is when pieces break away from the bearing metal. Technician B says that spalling is when pieces break away from the bearing metal. Who is correct?

Accepted Answer

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

Question 10

____ reduce friction and wear, dissipate heat, and protect metal surfaces from rusting.

Accepted Answer

A)  Lubricants 
B)  Bearings 
C)  Hubs 
D)  Copolymers 
A)  Lubricants 
B)  Bearings 
C)  Hubs 
D)  Copolymers

Question 11

What is the cause of a worn spindle?

Accepted Answer

A worn spindle is usually caused by a be

Question 12

The grease that is MOST-Likely used to lubricate speedometer cables, emergency brake cables, splines, and leaf springs is:

Accepted Answer

A)  lithium-based lubricant 
B)  chassis lubricant 
C)  wheel-bearing lubricant 
D)  solid lubricant 
A)  lithium-based lubricant 
B)  chassis lubricant 
C)  wheel-bearing lubricant 
D)  solid lubricant

Question 13

The ____________________ is the temperature at which grease turns into a liquid.

Accepted Answer

The answer of The ____________________ is the temperature at which...

Question 14

All of the following statements are true EXCEPT:

Accepted Answer

A)  leather does a good job around moisture or higher temperatures (above 2000F). 
B)  felt is a material that is sometimes used to keep out dirt. 
C)  to tell if a used seal is synthetic rubber or leather, scratch its surface. It will turn to a rougher, lighter color like brown or beige if it is leather. 
D)  felt does not do a good job of keeping oil confined and can also absorb water, contributing to rusting. 
A)  leather does a good job around moisture or higher temperatures (above 2000F). 
B)  felt is a material that is sometimes used to keep out dirt. 
C)  to tell if a used seal is synthetic rubber or leather, scratch its surface. It will turn to a rougher, lighter color like brown or beige if it is leather. 
D)  felt does not do a good job of keeping oil confined and can also absorb water, contributing to rusting.

Question 15

All of the following statements are true EXCEPT:

Accepted Answer

A)  tapered roller bearings are self-aligning. 
B)  tapered roller bearings are assembled with the inner race, bearings, and cage as a single unit. 
C)  needle bearings can tolerate misalignment. 
D)  a very small roller bearing is called a needle bearing. 
A)  tapered roller bearings are self-aligning. 
B)  tapered roller bearings are assembled with the inner race, bearings, and cage as a single unit. 
C)  needle bearings can tolerate misalignment. 
D)  a very small roller bearing is called a needle bearing.

Question 16

Ball bearings have more friction than roller bearings but can operate at higher speeds.

Accepted Answer

A) True 
 B)False

Question 17

The ability of a lubricant to maintain its viscosity across a wide variation in temperatures is called its ____________________.

Accepted Answer

The answer of The ability of a lubricant to maintain...

Question 18

One of the ball bearing's disadvantages is that most of the weight of the vehicle is exerted on the bottom of the bearing on a very small surface area of the ball and race.

Accepted Answer

A) True 
 B)False

Question 19

An up-and down bearing load is called a(n) ____________________.

Accepted Answer

The answer of An up-and down bearing load is called...

Question 20

Drive axle bearings are located at the ends of the rear axle housing on an RWD car or within the hub of an FWD car.

Accepted Answer

A) True 
 B)False

Exam 60: Bearings, Seals, and Greases

Why is it not advisable to spin a wheel bearing with compressed air?

____________________ roller bearings are used for front-wheel bearings because they can control end thrust when they are installed with their tapers facing in opposite directions.

Which of the following statements is LEAST-Likely true?

Which of the following is LEAST-Likely a part of the wheel bearing assembly?

What test would you perform to make sure that the wheel bearing is not too tight?

____________________ grease has a consistency that allows it to be applied through a zerk fitting with a grease gun.

____ grease is resistant to heat. It is usually thicker and specially formulated for use with various types of bearings.

A grease made from petroleum should not be used at temperatures in excess of 4000F unless it is being changed every hour or two.

While having a discussion, Technician A says that brinelling is when pieces break away from the bearing metal. Technician B says that spalling is when pieces break away from the bearing metal. Who is correct?

____ reduce friction and wear, dissipate heat, and protect metal surfaces from rusting.

What is the cause of a worn spindle?

The grease that is MOST-Likely used to lubricate speedometer cables, emergency brake cables, splines, and leaf springs is:

The ____________________ is the temperature at which grease turns into a liquid.

All of the following statements are true EXCEPT:

All of the following statements are true EXCEPT:

Ball bearings have more friction than roller bearings but can operate at higher speeds.

The ability of a lubricant to maintain its viscosity across a wide variation in temperatures is called its ____________________.

One of the ball bearing's disadvantages is that most of the weight of the vehicle is exerted on the bottom of the bearing on a very small surface area of the ball and race.

An up-and down bearing load is called a(n) ____________________.

Drive axle bearings are located at the ends of the rear axle housing on an RWD car or within the hub of an FWD car.

Introduction to the Automobile

Automotive Careers and Technician Certification

Shop Safety

Shop Management, Service Records, and Parts

Locating Service Information and Specifications

Measuring Tools and Systems

Hardware, Fasteners, Drills, and Thread Repair

Shop Tools

General Shop Equipment

Cleaning Equipment and Methods

Lifting Equipment and Air Compressors

Engine Lubrication

Underhood and Body Inspection Car on Ground

Undercar Inspection and Service

Introduction to the Engine

Engine Classifications and Advanced Transportation Technologies

Engine Size and Measurements

Engine Upper End

Engine Lower End and Lubrication System Theory

Cooling System Theory

Cooling System Service

Automotive Belts

Automotive Hoses

Automotive Plumbing: Tubing and Pipe

Basic Electrical System Theory and Repairs

Battery Fundamentals

Battery Service

Starting System Fundamentals

Starting System Service

Charging System Fundamentals

Charging System Service

Lighting and Wiring Fundamentals

Lighting and Wiring Service

Safety, Security, Comfort Systems, and Electrical Accessories

Heating and Air Conditioning Fundamentals

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Fuels and Alternative Fuels

Fuel System Fundamentals

Fuel System Service

Intake and Exhaust Systems, Turbochargers and Superchargers

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Emission Control System Service

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Advanced Emissions and On-Board Diagnostics Odb

Diagnosing Engine Performance Problems

Diagnosing Engine Mechanical Problems

Engine Removal and Disassembly

Engine Sealing, Gaskets, Fastener Torque

Engine Diagnosis and Service: Cylinder Head and Valvetrain

Engine Diagnosis and Service: Block, Crankshaft, Bearings, and Lubrication System

Engine Diagnosis and Service: Piston, Piston Rings, Connecting Rod, Engine Balancing

Ordering Parts, Short and Long Blocks, Engine Assembly

Engine Installation, Break In, and In-Chassis Repairs

Brake Fundamentals

Brakes Service

Anti-Lock Brakes Traction and Stability Control

A grease made from petroleum should not be used at temperatures in excess of 400⁰F unless it is being changed every hour or two.