Question 1

Name the two basic types of compression gauges and how they are used.

Accepted Answer

Push-in gauge and screw-in gauge are positioned in a spark plug hole and provide a compression reading when the engine is cranked. The push-in gauge must be held firmly in place while the engine is cranked, otherwise the readings will be inaccurate.
A screw-in gauge has adapters that are threaded into the spark plug holes. It is more accurate than the push-in type.

Question 2

The amount of antifreeze in the coolant is measured with a _____.

Accepted Answer

A)  hydrometer 
B)  refractometer 
C)  both "hydrometer" and "refractometer" 
D)  neither "hydrometer" nor "refractometer" 
A)  hydrometer 
B)  refractometer 
C)  both "hydrometer" and "refractometer" 
D)  neither "hydrometer" nor "refractometer" C

Question 3

What colors are used to identify R-134a service hoses?

Accepted Answer

Low-pressure is blue with a black stripe. High-pressure is red with a black stripe. Service hose [center] is yellow with a black stripe.

Question 4

Lab scopes are being discussed. Technician A says the lab scope displays the resistance of a sensor as it changes over time. Technician B says some lab scopes can display two waveforms at the same time. 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 5

Two technicians are discussing Volt/Amp testers [VAT]. Technician A says the VAT contains a carbon pile that is a variable resistor. Technician B says the VAT is used to check batteries, starting systems, and charging systems. 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 6

When servicing air-conditioning hoses, a(n) _______ coupling tool set is required to disconnect the hose ends.

Accepted Answer

A)  flare nut 
B)  snap ring 
C)  O-ring 
D)  spring lock 
A)  flare nut 
B)  snap ring 
C)  O-ring 
D)  spring lock

Question 7

Front bearing hub tools are usually generic and fit several vehicles.

Accepted Answer

A) True 
 B)False

Question 8

A "noid" light is used to check ______.

Accepted Answer

A)  spark plugs 
B)  fuel injector circuit 
C)  fuel pumps 
D)  ignitions 
A)  spark plugs 
B)  fuel injector circuit 
C)  fuel pumps 
D)  ignitions

Question 9

Test strips are used to measure the pH [acidity] of the ____________________.

Accepted Answer

The answer of Test strips are used to measure the...

Question 10

DVOMs are available with analog and digital displays.

Accepted Answer

A) True 
 B)False

Question 11

A logic probe is used to detect ______.

Accepted Answer

A)  digital or pulsed [on-off] signals 
B)  continuity 
C)  shorts to ground 
D)  all answers are correct 
A)  digital or pulsed [on-off] signals 
B)  continuity 
C)  shorts to ground 
D)  all answers are correct

Question 12

Describe how to test manifold vacuum.

Accepted Answer

Connect the flexible hose of t

Question 13

A torque angle gauge is used to measure ______.

Accepted Answer

A)  the amount of additional twist applied to a bolt during the torquing procedure 
B)  the angle of the driveshaft relative to horizontal 
C)  the open and closed pressure of the valve springs 
D)  the preload applied to a torsion bar 
A)  the amount of additional twist applied to a bolt during the torquing procedure 
B)  the angle of the driveshaft relative to horizontal 
C)  the open and closed pressure of the valve springs 
D)  the preload applied to a torsion bar

Question 14

____________________ gloves must be used when working on or around high-voltage circuits on hybrid vehicles.

Accepted Answer

The answer of ____________________ gloves must be used when working...

Question 15

Vacuum leak testing is being discussed. Technician A uses a vacuum pump to check each component. Technician B says to use an ultrasonic tester. 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 16

List four gases that can be measured with an exhaust analyzer.

Accepted Answer

hydrocarbons [HC]
ca

Question 17

Most exhaust gas analyzers can measure ______.

Accepted Answer

A)  HC 
B)  CO 
C)  NOX (oxides of nitrogen) 
D)  all answers are correct 
A)  HC 
B)  CO 
C)  NOX (oxides of nitrogen) 
D)  all answers are correct

Question 18

Which of the following statements regarding the usage of a fuel pressure gauge is true?

Accepted Answer

A)  Typical fuel pressure for a fuel injection system is 100 to 150 psi. 
B)  A drop in fuel pressure results in a rich air/fuel mixture. 
C)  Both "Typical fuel pressure for a fuel injection system is 100 to 150 psi" and "A drop in fuel pressure results in a rich air/fuel mixture" 
D)  Neither "Typical fuel pressure for a fuel injection system is 100 to 150 psi" nor "A drop in fuel pressure results in a rich air/fuel mixture" 
A)  Typical fuel pressure for a fuel injection system is 100 to 150 psi. 
B)  A drop in fuel pressure results in a rich air/fuel mixture. 
C)  Both "Typical fuel pressure for a fuel injection system is 100 to 150 psi" and "A drop in fuel pressure results in a rich air/fuel mixture" 
D)  Neither "Typical fuel pressure for a fuel injection system is 100 to 150 psi" nor "A drop in fuel pressure results in a rich air/fuel mixture"

Question 19

Which of the following answers is NOT a type of ring compressor?

Accepted Answer

A)  wrinkle band 
B)  adjustable band with ratchet 
C)  band and pliers 
D)  C-clamp type 
A)  wrinkle band 
B)  adjustable band with ratchet 
C)  band and pliers 
D)  C-clamp type

Question 20

Manifold vacuum is measured in ______.

Accepted Answer

A)  inches of mercury [in. Hg] 
B)  kilopascals [kPa] 
C)  both "inches of mercury [in. Hg]" and "kilopascals [kPa]" 
D)  neither "inches of mercury [in. Hg]" nor "kilopascals [kPa]" 
A)  inches of mercury [in. Hg] 
B)  kilopascals [kPa] 
C)  both "inches of mercury [in. Hg]" and "kilopascals [kPa]" 
D)  neither "inches of mercury [in. Hg]" nor "kilopascals [kPa]"

Exam 6: Diagnostic Equipment and Special Tools

Name the two basic types of compression gauges and how they are used.

The amount of antifreeze in the coolant is measured with a _____.

What colors are used to identify R-134a service hoses?

Lab scopes are being discussed. Technician A says the lab scope displays the resistance of a sensor as it changes over time. Technician B says some lab scopes can display two waveforms at the same time. Who is correct?

Two technicians are discussing Volt/Amp testers [VAT]. Technician A says the VAT contains a carbon pile that is a variable resistor. Technician B says the VAT is used to check batteries, starting systems, and charging systems. Who is correct?

When servicing air-conditioning hoses, a(n) _______ coupling tool set is required to disconnect the hose ends.

Front bearing hub tools are usually generic and fit several vehicles.

A "noid" light is used to check ______.

Test strips are used to measure the pH [acidity] of the ____________________.

DVOMs are available with analog and digital displays.

A logic probe is used to detect ______.

Describe how to test manifold vacuum.

A torque angle gauge is used to measure ______.

____________________ gloves must be used when working on or around high-voltage circuits on hybrid vehicles.

Vacuum leak testing is being discussed. Technician A uses a vacuum pump to check each component. Technician B says to use an ultrasonic tester. Who is correct?

List four gases that can be measured with an exhaust analyzer.

Most exhaust gas analyzers can measure ______.

Which of the following statements regarding the usage of a fuel pressure gauge is true?

Which of the following answers is NOT a type of ring compressor?

Manifold vacuum is measured in ______.

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