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1. Most digital ohmmeters have an audible tone to indicate a closed or low-resistance circuit, making them useful for performing ________.

polarity tests

continuity tests

voltage tests

frequency tests

Question 1 of 15

2. What instrument is used to take readings at specified intervals for later review?

Multimeter

Data logger

Voltmeter

Clamp-on ammeter

Question 2 of 15

3. Which instrument should be used to verify that there is power available to run a three-phase motor that will not start?

Ohmmeter

Voltage tester

Megger®

Clamp-on ammeter

Question 3 of 15

4. What is the lowest acceptable overvoltage category rating for a voltage tester that will be used to test electronic equipment and circuitry?

CAT I

CAT III

CAT II

CAT IV

Question 4 of 15

5. Another name for a VOM is a(n) ________.

voltmeter

ammeter

multimeter

current meter

Question 5 of 15

6. The typical applied megohmmeter voltage in 600V class systems is ________.

500 to 1,000V

1,000 to 1,500V

300 to 500V

150 to 300V

Question 6 of 15

7. Which meter can measure current without having to make contact with uninsulated wires?

Continuity tester

Clamp-on ammeter

Voltage tester

Ohmmeter

Question 7 of 15

8. Which of the following devices measures ohms, amps, and volts?

Megohmmeter

Multimeter

Phase tester

Ammeter

Question 8 of 15

9. Certified meters are marked as to their category rating on the ________.

back plate of the meter

meter leads

meter housing

title page of the operating instructions

Question 9 of 15

10. Before using a voltage tester, check to make sure it is functioning correctly by ________.

grounding the leads

touching the leads together

checking it with a multimeter

connecting it to a known energized source

Question 10 of 15

11. Which of the following are used with ammeters to increase their range for current measurement?

Shunt resistors

Clips

Current-limiting resistors

Magnets

Question 11 of 15

12. Which of the following devices is also called an insulation resistance tester?

Multimeter

Megger®

Phase tester

VOM

Question 12 of 15

13. What is the lowest acceptable overvoltage category rating for a multimeter that will be used to test small appliances?

CAT IV

CAT I

CAT II

CAT III

Question 13 of 15

14. Which of the following is true of digital meters?

They are more accurate than analog meters.

They are faster than analog meters.

They are easier to read than analog meters.

They are easier to connect to the circuit than analog meters.

Question 14 of 15

15. What is the lowest acceptable overvoltage category rating for an ammeter that will be used to test industrial lighting and outdoor conductors?

CAT III

CAT I

CAT II

CAT IV

Question 15 of 15

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