Deck 4: Fasteners and Measurements

Question 1

The length of the bolt is measured from the top of the head to the bottom of the thread.

Answer 1

False

Question 2

When measuring engine vacuum, a vacuum gauge is connected to a port that is directly tapped into the intake manifold

Answer 2

True

Question 3

Thrust wear can contribute to out-of-round cylinders.

Answer 3

True

Question 4

Two technicians are discussing air gap measurements. Technician A says that non-magnetic feeler gauges should never be used. Technician B says that measurements should be made with a tooth of the ring aligned with the center of the sensor. Who is correct?

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

Question 5

Pressure gauges always read less than 10 lbs per square inch.

Question 6

Threaded fasteners are the least common fastener type.

Question 7

Two technicians are discussing snaprings. Technician A says that snaprings are made from high-quality aluminum. Technician B says that snaprings may be internal or external. Who is correct?

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

Question 8

Two technicians are discussing measuring bores with inside micrometers. Technician A says that extension spindles allow the measurement of cylinder bores. Technician B says that once the micrometer is inserted into the bore and extended, it should be tightened and removed. Who is correct?

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

Question 9

Spark plug gaps are measured with a round feeler gauge

Question 10

Washers help to distribute the clamping load on a part.

Question 11

Two technicians are discussing measuring bearing journals. Technician A says that measurements should be made on a machined area. Technician B says that unmachined areas are typically measured. 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 spark plug gaps. Technician A says that it is critical that spark plug gap be set. Technician B says that a round wire feeler gauge is used to measure gap. Who is correct?

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

Question 13

Outside micrometers are used to measure journals or shafts to check for out-of-round.

Question 14

What is true of washers?

A) A flat washer is used between a nut and a component to distribute load.
B) Lock washers have either external or internal teeth.
C) Spring lock washers have two sharp edges.
D) Flat washers are split.

Question 15

Two technicians are discussing U.S. thread sizes. Technician A says fastener threads can be fine or coarse. Technician B says that fine threads provide greater holding strength in soft materials. Who is correct?

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

Question 16

Two technicians are speaking about helicoils. Technician A says helicoils can be threaded into a properly prepared hole to repair damaged threads. Technician B says helicoils can be used to make external threads on a shaft or rod. Who is correct?

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

Question 17

What is true about measuring shaft diameter and wear?

A) If a shop does not overhaul motors, measurements are not made.
B) Measurements only need to be made in one location.
C) Noise does not accurately determine wear.
D) Micrometers only come in metric.

Question 18

Runout is a term used to determine if there is a wobble in a wheel or disc.

Question 19

Technician A and technician B are discussing spark plug gap. Technician A says that the spark may be weak in strength if the gap is too wide. Technician B says that the spark will have high-voltage if the gap is too narrow. Who is correct?

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

Question 20

Speed sensors use a toothed ring to trigger the sensor.

Question 21

What are two things that should be considered when observing measurements from a cylinder bore?

Question 22

What device is added to an inside micrometer when measuring a cylinder with a diameter larger than one inch?

Question 23

Two technicians are discussing measuring pressure in an automobile. Technician A says that fuel, oil, automatic transmission, and brake pressure can be measured. Technician B says that the pressure gauge must read in hundreds of pounds of pressure. Who is correct?

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

Question 24

What is used to identify strength or quality of fasteners?

Question 25

Two technicians are discussing brake rotor thickness. Technician A says that rotors must be removed to measure thickness. Technician B says that rotors can be measured on or off the vehicle. Who is correct?

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

Question 26

Describe how to measure spark plug gap.

Question 27

Briefly describe problems resulting from undertightening and overtightening threaded fasteners.

Question 28

What two types of dial indicators can be used to measure rotor runout?

Question 29

What tool is used to measure the thickness of a brake rotor?

Question 30

Name two different types of micrometers.

Question 31

What tool is used to measure shaft endplay?

Question 32

Where is the minimum thickness specification for a brake disc located for a specific vehicle?

Question 33

What is the purpose of pressure measurements on antilock brake systems?

Question 34

What tool is used to measure spark plug gap?

Question 35

What are the two basic categories of fasteners?

Question 36

What statement is true concerning engine vacuum?

A) Engine vacuum is not related to engine problems.
B) The vacuum gauge must be connected to a fitting in the intake manifold.
C) A rise in vacuum is a sign of a properly operating engine.
D) Average reading for a properly running engine is approximately 25-30 in. Hg.

Question 37

What can vacuum readings from an operating engine tell us?

Question 38

Two technicians are discussing soldering wires. Technician A says that electrical-type solder adds little or no resistance to a circuit. Technician B says that acid-base solder damages the surface of the wire. Who is correct?

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

Question 39

Runout is measured with a(n) _____.

A) dial indicator
B) inside micrometer
C) caliper
D) outside micrometer

Question 40

What tool is used to measure runout on a brake rotor?