Question 1

An inclinometer is used to measure ______.

Accepted Answer

An inclinometer is a tool used to measure angles of slope or tilt, often used to measure drive shaft angles in automotive applications.

Question 2

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

Accepted Answer

C-clamp type is not a type of ring compressor. Ring compressors are tools used to compress piston rings to fit into the cylinder bore, and they typically come in forms such as wrinkle band, adjustable band with ratchet, and band and pliers, but not in a C-clamp type.

Question 3

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

Both Technician A and Technician B are correct. A vacuum pump can be used to check for leaks by applying vacuum to components and observing if the vacuum holds. An ultrasonic tester can detect the sound of air leaking, which is useful for identifying vacuum leaks.

Question 4

All the following are types of valve spring compressors EXCEPT:

Accepted Answer

The correct types of valve spring compressors include pry-bar type, C-clamp type, and plunger type. D-clamp type is not a recognized type of valve spring compressor.

Question 5

A "noid" light is used to check ______.

Accepted Answer

A "noid" light is used to check the electrical circuit of a fuel injector to ensure it is receiving the correct signal from the engine control unit.

Question 6

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

Technician B is correct because lab scopes can indeed display multiple waveforms simultaneously, allowing for the comparison of different signals over time. Technician A is incorrect because lab scopes display voltage over time, not resistance.

Question 7

Manifold vacuum is formed on the piston's ______ stroke.

Accepted Answer

Manifold vacuum is formed on the intake stroke when the piston is moving downward, creating a low-pressure area in the intake manifold, which allows the air-fuel mixture to be drawn into the engine.

Question 8

A logic probe is used to detect ______.

Accepted Answer

A logic probe is specifically designed to detect digital or pulsed signals, indicating high, low, or pulsing states in digital circuits.

Question 9

A hydrometer can be used to check ______.

Accepted Answer

A hydrometer is used to measure the specific gravity of liquids, which can be applied to both battery electrolyte and coolant to assess their condition.

Question 10

Control arm bushings are typically removed with ______.

Accepted Answer

The answer of Control arm bushings are typically removed with...

Question 11

A torque angle gauge is used to measure ______.

Accepted Answer

A torque angle gauge is specifically designed to measure the additional twist or rotation applied to a bolt during the torquing process. It allows for precise and accurate torque tightening, which is important in ensuring the structural integrity and safety of the components being secured.

Question 12

Most exhaust gas analyzers can measure ______.

Accepted Answer

Most exhaust gas analyzers are designed to measure multiple components of exhaust gases, including hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOX).

Question 13

Technician A uses a pipe wrench to adjust a tie-rod sleeve. Technician B uses a tie-rod sleeve adjusting tool. Who is correct?

Accepted Answer

Using a pipe wrench to adjust a tie-rod sleeve can damage the sleeve, whereas using a tie-rod sleeve adjusting tool is the recommended method and will not cause damage. Therefore, Technician B is correct, and Technician A is not.

Question 14

A pyrometer can be used to measure all the following EXCEPT:

Accepted Answer

A pyrometer is designed to measure high temperatures, typically in engines or exhaust systems, but it cannot detect or measure exhaust leaks, as those are related to the presence or absence of gases rather than their temperature.

Question 15

A timing light checks the ignition timing in relation to the ____ position.

Accepted Answer

A timing light checks the ignition timing in relation to the crankshaft position.

Question 16

Technician A says a sulfated and plugged fuel injector is caused by electrical problems. Technician B says a sulfated and plugged fuel injector can be cleaned. Who is correct?

Accepted Answer

Technician B is correct. A sulfated and plugged fuel injector can be cleaned through a chemical cleaning process, ultrasonic cleaning, or replacement of the injector. It is not solely caused by electrical problems, although electrical issues may contribute to the problem.

Question 17

Technician A says a drum micrometer is used to measure the inside diameter of a brake drum. Technician B says it only measures metric drums. Who is correct?

Accepted Answer

A drum micrometer is indeed used to measure the inside diameter of a brake drum, regardless of whether the measurement is in metric or imperial units.

Question 18

Ridge reamers are being discussed. Technician A says the reamer removes the unworn metal that lies above the ring travel. Technician B says to remove the ridge after removing the piston. Who is correct?

Accepted Answer

Technician A is correct because a ridge reamer is used to remove the unworn metal at the top of the cylinder that is not touched by the piston rings, which forms a ridge over time. Technician B is incorrect because the ridge should be removed before removing the piston to prevent damage to the piston or rings.

Question 19

Technician A says the injector balance tester leads must be connected to the battery with the correct polarity. Technician B says the injector balance tester contains a timing circuit. Who is correct?

Accepted Answer

Technician A is correct because connecting the leads incorrectly can damage the injector balance tester. Technician B is also correct because the injector balance tester does contain a timing circuit to measure the fuel injector flow rate. Therefore, both technicians are correct.

Question 20

A pyrometer is used to measure ______.

Accepted Answer

A pyrometer is an instrument that measures high temperatures, typically used in industries such as manufacturing, metalworking, and glassmaking. It does not measure pressure, frequency or voltage.

Quiz 6: Diagnostic Equipment and Special Tools