Question 1

____________________ 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 2

Brake-cleaning machines are being discussed. Technician A uses a negative pressure [vacuum] enclosure with a HEPA filter. Technician B uses a low-pressure wet cleaning system using water mixed with an organic solvent. Who is correct?

Accepted Answer

Both techniques described by Technician A and Technician B are recognized and acceptable methods for cleaning brakes, focusing on minimizing the release of harmful dust and using environmentally safer solvents.

Question 3

A refrigerant recycling/recharging station performs all the following functions EXCEPT:

Accepted Answer

Identifying the type of refrigerant in the system is not a function of a refrigerant recycling/recharging station. These stations are designed to remove refrigerant, evacuate the A/C system, and recharge it, but not to identify refrigerant types.

Question 4

Most wheel balancers require the wheel to be ____________________ the car.

Accepted Answer

The answer of Most wheel balancers require the wheel to...

Question 5

A(n) _____ammeter determines the amount of amperage passing through the circuit based on the strength of the magnetic field surrounding the wire.

Accepted Answer

An inductive ammeter determines amperage based on the magnetic field surrounding the wire. This type of ammeter is often used in high voltage circuits and can measure both AC and DC current. Cat III refers to a safety rating for multimeters and does not apply to ammeters. Magneto-resistive ammeters use a different principle to measure amperage and are not as commonly used as inductive or conventional ammeters. Conventional ammeters measure amperage by connecting in series with the circuit and measuring the voltage drop across a shunt resistor.

Question 6

Most digital multimeters [DMM] can measure all the following EXCEPT:

Accepted Answer

Digital multimeters are not designed to measure ignition timing, which requires specialized tools such as a timing light.

Question 7

The pattern displayed on the screen of a lab scope is called a ____________________.

Accepted Answer

The answer of The pattern displayed on the screen of...

Question 8

Technician A tests valve springs for squareness and freestanding height. Technician B tests valve springs for open and closed pressure. Who is correct?

Accepted Answer

Both technicians are correct in their respective tests for valve springs. Technician A tests for squareness and freestanding height to ensure that the spring sits straight and is the appropriate height. Technician B tests for open and closed pressure to ensure that the spring is able to compress and rebound correctly under load. Both tests are important in ensuring the proper operation of the valve spring.

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

A(n) ____________________ is a microprocessor designed to communicate with the vehicle's computer.

Accepted Answer

The answer of A(n) ____________________ is a microprocessor designed to...

Question 11

Cylinder deglazing is done using a cylinder ____________________.

Accepted Answer

The answer of Cylinder deglazing is done using a cylinder...

Question 12

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

Accepted Answer

Both a hydrometer and a refractometer can be used to measure the concentration of antifreeze in the coolant. A hydrometer measures the specific gravity, while a refractometer measures the refractive index.

Question 13

Technician A uses leather gloves when working on high-voltage components in a hybrid vehicle. Technician B uses a CAT-III voltmeter and test leads when testing electrical components on a hybrid. Who is correct?

Accepted Answer

Technician B is correct because using a CAT-III voltmeter and appropriate test leads is the proper procedure for safely testing electrical components on a hybrid vehicle. Leather gloves do not provide the necessary insulation for working on high-voltage components; specialized insulated gloves are required for such tasks, making Technician A's approach incorrect.

Question 14

A self-powered test light is called a(n) ____________________ tester.

Accepted Answer

The answer of A self-powered test light is called a(n)...

Question 15

A(n) ____________________ is used to remove a steering wheel from its shaft.

Accepted Answer

The answer of A(n) ____________________ is used to remove a...

Question 16

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

Technician A is correct because VATs do contain a carbon pile, which is a variable resistor. Technician B is correct because VATs are commonly used to test batteries, starting systems, and charging systems. Therefore, both technicians are correct.

Question 17

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

Accepted Answer

When servicing air-conditioning hoses, a spring lock coupling tool set is required to disconnect the hose ends.

Question 18

Tire tread depth should be checked in at least ____________________ places around the tire.

Accepted Answer

The answer of Tire tread depth should be checked in...

Question 19

A(n) ____________________ measures the resistance to current flow in a circuit.

Accepted Answer

The answer of A(n) ____________________ measures the resistance to current...

Question 20

What tool is NOT used for fabricating new brake lines.

Accepted Answer

A tubing hone is not used for fabricating new brake lines; it is used for smoothing or polishing the inside of tubes, not for cutting or flaring.

Quiz 6: Diagnostic Equipment and Special Tools