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

Shunt resistors

Magnets

Clips

Current-limiting resistors

Question 1 of 15

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

500 to 1,000V

1,000 to 1,500V

150 to 300V

300 to 500V

Question 2 of 15

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

Clamp-on ammeter

Ohmmeter

Voltage tester

Continuity tester

Question 3 of 15

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

They are more accurate than analog meters.

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

They are faster than analog meters.

They are easier to read than analog meters.

Question 4 of 15

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

CAT III

CAT I

CAT IV

CAT II

Question 5 of 15

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

Multimeter

Megger®

VOM

Phase tester

Question 6 of 15

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

Multimeter

Voltmeter

Clamp-on ammeter

Data logger

Question 7 of 15

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

CAT II

CAT I

CAT III

CAT IV

Question 8 of 15

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

Ammeter

Megohmmeter

Multimeter

Phase tester

Question 9 of 15

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

checking it with a multimeter

touching the leads together

connecting it to a known energized source

grounding the leads

Question 10 of 15

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

title page of the operating instructions

back plate of the meter

meter housing

meter leads

Question 11 of 15

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

voltage tests

continuity tests

frequency tests

polarity tests

Question 12 of 15

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

current meter

voltmeter

multimeter

ammeter

Question 13 of 15

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

CAT I

CAT III

CAT II

CAT IV

Question 14 of 15

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

Voltage tester

Clamp-on ammeter

Ohmmeter

Megger®

Question 15 of 15

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