NCCER Practice Exam PT 12

A motor rotation meter _____.

• tests an energized motor

• works only in a clockwise turn

• is used to find the motor legs

• is used to identify phases of the circuit

The IEC developed a safety standard for overvoltage installation categories of CAT I, CAT II, CAT III, and CAT IV for _____.

• electrical equipment

• wiring

• test equipment

• signaling circuits

To ensure safety, before measuring low voltages, you should first test for _____.

• resistance

• current

• vibration

• higher voltages

An insulation resistance tester is another name for a(n) _____.

• megohmmeter

• multimeter

• continuity tester

• ammeter

The highest level of protection from transient voltage is provided by instruments rated as _____.

• CAT I

• CAT IV

• CAT III

• CAT II

A voltmeter is used to test _____.

• sine waves

• power

• voltage ranges

• exact voltages

Clamp-on ammeters work by ____.

• using D'Arsonval meter movement

• measuring the high resistance end of a power transformer

• detecting the strength of the electromagnetic field around the conductor

• using a resistive shunt

Tags

NGSS.HS-PS2-5

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

• CAT II

• CAT I

• CAT IV

• CAT III

An ammeter is used to measure ____.

• current

• voltage

• insulation value

• resistance

Which of the following is true about analog meters?

• Analog meters have an autoranging setting.

• Analog meters use a moving-coil meter movement.

• Analog meters are solid-state instruments.

• Analog meters have a digital readout.