Question 1

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

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Question 2

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

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Question 3

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?

Accepted Answer

Technician A is correct. Fuel, oil, automatic transmission, and brake pressure can be measured. Technician B is incorrect as pressure gauges can read in various units such as psi, bar, kPa, etc. and not just in hundreds of pounds of pressure.

Question 4

What is used to identify strength or quality of fasteners?

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Question 5

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?

Accepted Answer

Technician B is correct because brake rotor thickness can indeed be measured both on and off the vehicle using appropriate tools like a micrometer or a caliper. Removing the rotor is not a necessity for measuring its thickness.

Question 6

Describe how to measure spark plug gap.

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Question 7

Briefly describe problems resulting from undertightening and overtightening threaded fasteners.

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Question 8

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

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Question 9

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

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Question 10

Name two different types of micrometers.

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Question 11

What tool is used to measure shaft endplay?

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Question 12

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

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Question 13

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

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Question 14

What tool is used to measure spark plug gap?

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Question 15

What are the two basic categories of fasteners?

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Question 16

What statement is true concerning engine vacuum?

Accepted Answer

The vacuum gauge must be connected to a fitting in the intake manifold.

Question 17

What can vacuum readings from an operating engine tell us?

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Question 18

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?

Accepted Answer

Electrical-type solder is designed to have minimal resistance to not affect the circuit's performance, making Technician A's statement correct. Acid-core solder, meant for plumbing, can damage electrical wires due to its corrosive nature, making Technician B's statement also correct.

Question 19

Runout is measured with a(n) _____.

Accepted Answer

Runout is typically measured using a dial indicator, as it allows for precise measurements of the amount of deviation in a rotating object. Inside and outside micrometers and calipers are not typically used for measuring runout.

Question 20

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

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Quiz 4: Fasteners and Measurements