Quiz #2

Question 1

Which of the following statements is correct regarding the use of a multimeter when directly measuring current?

Answer 1

It must be connected in series with the circuit.

Question 2

To properly use a hook-on-type volt/ammeter to check current flow, you must FIRST __________.

Answer 2

hook the jaws of the instrument around the insulated conductor

Question 3

A multimeter can be used to measure __________.

Answer 3

current, voltage and resistance.

[amps, volts and ohms.]

Question 4

A multimeter may be damaged by taking a __________.

Answer 4

voltage reading while in the resistance mode

Question 5

When used for taking resistance measurements, a volt-ohm-milliammeter is normally powered by __________.

Answer 5

internal storage batteries

Question 6

Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?

Answer 6

Root-mean-square value

Question 7

An ohmmeter can be used to measure __________.

Answer 7

circuit continuity

Question 8

If you disconnect and arrange both ends of a three conductor cable, without any contact between the individual conductors, a low ohmic value between the ends of a single conductor would indicate __________.

Answer 8

continuity of the conductor

Question 9

While troubleshooting a circuit in an engine room central control console, a resistor is suspected of being faulty. Which of the following precautions must be observed if an ohmmeter is to be used to check its value?

Answer 9

Resistor’s circuit must be de-energized and at least one end of the component isolated.

Question 10

To properly use a megohmmeter, you must FIRST __________.

Answer 10

de-energize the circuit before connecting the leads.