Deck 15: Engine Hardware: Fasteners, Thread Repair, and Gaskets

Question 1

Drill bits for iron and steel are properly ground to a _____ degree angle.

Answer 1

59

Question 2

Technician A says one wrench is sufficient when loosening a flare-nut. Technician B says embossed steel gaskets should be installed with the embossed side toward the block. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Answer 2

D

Question 3

To anneal a metal, it is heated and cooled rapidly.

Answer 3

False

Question 4

The recommended drill speed for 1/4" mild steel is 750 rpm.

Question 5

All of the following are types of thread inserts used in engine repairs, EXCEPT _____.

A)solid
B)Smartsert
C)Keensert
D)heli-coil

Question 6

During warranty repairs for rear main seal oil leaks, some manufacturers use ____ rear main oil seals.

Question 7

A heli-coil is a thread repair device.

Question 8

ISO flares and SAE double flares are interchangeable.

Question 9

Technician A says the click-type torque wrench is best because it is the most accurate. Technician B says that an inch-pound torque wrench should be used when measuring smaller torque values. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 10

Why should silicone application be avoided around fuel and automatic transmission fluid?

Question 11

Technician A says chevron seals are used at the front and rear of the crankcase. Technician B says dynamic seals are used to seal moving parts. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 12

Technician A says multi-layered steel gaskets have from eight to ten layers. Technician B says when drilling steel, you use a cutting oil. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 13

The maximum stress a material can withstand and still be able to return to its original form without damage is known as ____.

Question 14

Technician A says that a harmonic balancer repair sleeve kit will repair a worn damper hub at minimal cost. Technician B says this type sleeve is pressed onto the hub using a small amount of silicone sealer. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 15

Used only on precision machine parts, a(n) ____ sealer hardens in the absence of air.

Question 16

Technician A says recommendations specify valve cover gaskets be tightened to 5 to 15 foot-pounds. Technician B says many gaskets used in the automotive industry are directional. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 17

Technician A says spark plugs that have tapered seats require no gasket. Technician B says spark plugs that have flat seats require gaskets. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 18

Technician A says copper head gaskets are available for use in corrosive environments. Technician B says Teflon coated gaskets require the use of gasket sealer. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 19

Standard inch bolts have lines on the heads to identify the grade.

Question 20

Technician A says some manufacturers recommend head bolts going into a coolant passage be sealed with liquid thread sealant. Technician B says RTV stands for right torque value. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 21

The lip of an oil seal faces _____ from the oil.
A. toward
B. away
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Question 22

What is one of the trade names for a replacement thread insert?

Question 23

Refer to a bolt torque chart. What is the pro-per torque for a grade 5, 3⁄8" bolt with SAE 10 lubricant?

Question 24

Refer to a tap drill size chart. What is the correct tap drill for a 1⁄4 x 20 screw thread?

Question 25

Technician A says that the 20 in 1⁄4 x 20 signifies the total number of threads the fastener has. Technician B says that the 1⁄4 signifies the socket size of the fastener head. Who is right?

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

Question 26

Technician A says that a nonhardened nut loses clamping ability each time it is retorqued. Technician B says that a high-grade capscrew loses clamping ability each time it is retorqued to specification. Who is right?

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

Question 27

Name one place where pipe threads are found in an engine.

Question 28

Why is a tap turned backward after turning forward when cutting a thread?

Question 29

Technician A says that a hole can be drilled in cast iron using no lubricant. Technician B says that a hole can be drilled in aluminum without the use of a lubricant. Who is right?

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

Question 30

Technician A says that using a thread lubricant results in more bolt stretch. Technician B says that a grade 8 bolt has eight radial lines on its head. Who is right?

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

Question 31

To what percent of its elastic limit is a bolt usually torqued?

Question 32

Technician A says that drill sizes are classified by letters. Technician B says that drill sizes are classified by numbers. Who is right?

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

Question 33

Name four types of taps.

Question 34

If a nut turns easily for a few threads on a bolt and then begins to turn hard, what could be the problem?

Question 35

What color is the locking sealer used to glue parts that will not be disassembled again?

Question 36

What is the name of the machine shop process that erodes a broken fastener without damaging the screw thread?

Question 37

What does RTV stand for?

Question 38

When installing half of a rear main lip seal in a block, the parting line is positioned _____ with the parting line of the main cap.
A. offset
B. even

Question 39

Silicone sealant that does not use acetic acid to cure and is used with oxygen sensor systems is called low _____ RTV.

Question 40

Before putting a click-type torque wrench aside after using it, what should be done?

Question 41

Technician A says that nonretorque head gaskets do not compress so they maintain all of the original clamping force. Technician B says that a microinch is one millionth of an inch. Who is right?

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

Question 42

Technician A says that sealers are used with all gaskets but paper ones. Technician B says that a broken exhaust manifold bolt can result in a burned exhaust valve. Who is right?

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

Question 43

Technician A says that blue anaerobic thread locking compound is used when parts might be disassembled again. Technician B says that using some types of RTV for engine sealing can damage an oxygen sensor. Who is right?

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

Question 44

The torque specification for a valve cover gasket is 5 foot-pounds. Which of the following is the best procedure?

A)Use a 1⁄2" drive foot-pound torque wrench and torque to 5 foot-pounds.
B)Use a 3⁄8" drive foot-pound torque wrench and torque to 5 foot-pounds.
C)Use an inch-pound torque wrench and torque to 5 foot-pounds.
D)Use an inch-pound torque wrench and torque to 60 inch-pounds.

Question 45

Technician A says that head gaskets have small metering holes to direct coolant flow. Technician B says that occasionally one manufacturer's engine might use different head gaskets for different model years. Who is right?

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