Question 1

Define Ohm's law.

Accepted Answer

The answer of Define Ohm's law....

Question 2

Which of the following would be the best tool to use to capture a voltage glitch?

Accepted Answer

A digital storage oscilloscope is the best tool to capture voltage glitches because it allows for detailed analysis of voltage changes over time. A standard digital multimeter may not capture the brief duration of a voltage glitch, and an analog multimeter or logic probe may not have the necessary resolution or storage capacity to record and analyze the waveform.

Question 3

An individual who passes a particular ASE-certification examination becomes certified in that test area.

Accepted Answer

Passing a particular ASE-certification examination results in certification in that specific test area.

Question 4

A 10% duty cycle indicates that the load is turned on 1/10th of the time.

Accepted Answer

A 10% duty cycle means that the load is turned on for 10% of the total time, which is equal to 1/10th of the time. Therefore, the statement is true.

Question 5

A jumper wire is used to bypass a load device.

Accepted Answer

A jumper wire is typically used to bypass a portion of a circuit, not specifically a load device. It is used to test or temporarily connect parts of a circuit.

Question 6

Technician A says that an ammeter should be connected in parallel to the circuit being tested. Technician B says that an ammeter is used to measure current flow. Who is correct?

Accepted Answer

An ammeter is indeed used to measure current flow, which is what Technician B says. However, Technician A is incorrect because an ammeter should be connected in series with the circuit being tested, not in parallel.

Question 7

A scan tool allows a technician to determine load voltage drops.

Accepted Answer

A scan tool is primarily used for reading and clearing diagnostic trouble codes, monitoring real-time data from various sensors and systems within a vehicle, and performing specific tests. Voltage drops are typically measured directly with a multimeter or voltmeter by checking the difference in voltage across a component or circuit under load, not with a scan tool.

Question 8

A digital multimeter is faster at detecting voltage changes in a circuit than a lab scope.

Accepted Answer

A lab scope (oscilloscope) is designed to capture and display voltage changes over time, allowing it to detect rapid changes in voltage much faster and in more detail than a digital multimeter, which is better suited for measuring steady-state voltages.

Question 9

Most technicians today use lab scopes to diagnose computer-controlled circuits.

Accepted Answer

Technicians today rely heavily on lab scopes to diagnose complex computer-controlled circuits. These tools allow them to analyze electrical signals in real-time and identify any abnormalities or malfunctions in the system.

Question 10

An analog meter is often used to test computer-controlled circuits.

Accepted Answer

An analog meter is not recommended for testing computer-controlled circuits as it can damage the circuit due to high impedance. Digital multimeters are preferred for this purpose.

Question 11

A test light is ideal for checking for voltage on a low-current low-power circuit.

Accepted Answer

A test light, due to its design, can draw more current than a low-current, low-power circuit can safely handle, potentially damaging the circuit or affecting its operation. A multimeter is a better choice for these types of circuits as it can measure voltage without drawing significant current.

Question 12

A 12-volt test light is touched into a connector. The light goes on. Following the conductor forward (toward the load), the next connector is probed with no light. What does this indicate?

Accepted Answer

The fact that the test light does not light up at the next connector indicates that there is an interruption in the flow of electricity between the first and second connectors, which suggests an open circuit.

Question 13

Define electromagnetism .

Accepted Answer

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Question 14

Technician A says horizontial adjustment of an oscilloscope affects the time-per-division values. Technician B says changing the vertical adjustment of an oscilloscope affects the volts-per-division values. Who is correct?

Accepted Answer

Technician A is correct - horizontal adjustment changes the time-per-division, and Technician B is also correct - vertical adjustment changes the volts-per-division.

Question 15

A digital multimeter is being used to measure current flow. The meter displays 97.5 mA. Technician A says this represents 9.75 amperes. Technician B says this represents 0.0975 amperes. Who is correct?

Accepted Answer

The meter displays 97.5 mA, which stands for milliamperes. There are 1000 milliamperes in 1 ampere. Therefore, 97.5 mA represents 0.0975 amperes, not 9.75 amperes. Technician B is correct.

Question 16

Each lamp in the circuit shown has 12 ohms of resistance. Will the three lamps put out the same amount of light? Why or why not?

Accepted Answer

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Question 17

Technical service bulletins (TSB's) should only be used if a system fault cannot be determined.

Accepted Answer

TSB's are issued by manufacturers to provide information on common problems and solutions related to their vehicles or products. They can be used to assist in diagnosing and repairing system faults, but should not be the sole source of information or solution. Proper diagnostic procedures should be followed to ensure accurate and effective repairs.

Question 18

Resistance in a circuit may be measured using an ammeter.

Accepted Answer

The answer of Resistance in a circuit may be measured...

Question 19

List three types of circuits and describe each.

Accepted Answer

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Question 20

List Kirchhoff's two laws of voltage and current.

Accepted Answer

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Quiz 2: Basic Theoriesspecial Tools and Procedures