Exam 8: Measuring Instruments

The low-impedance voltage tester ____.

____ meters are characterized by the fact that they use a pointer and scale to indicate their value.

The secondary winding of a CT should never be opened when power is being applied to the primary.

A Megger® is available as a battery-operated model.

The ____ of an AC wave form can be found by dividing 1 by the time (T) it takes to complete one cycle.

The Hall generator produces a voltage in the presence of a magnetic field.

The ammeter, ____ the voltmeter, is a very ____ device.

In an oscilloscope, which control determines which channel of a dual-trace oscilloscope is to be used?

DC-AC clamp-on ammeters use the ____ effect as the basic principle of operation.

The bridge used to measure resistance is called a ____ bridge.

A current transformer is basically a ____ transformer.

A bridge is constructed by connecting six components to form a parallel-series circuit.

In an oscilloscope, which control is used to locate the position of the trace if it is off the display?

The wattmeter is used to measure the ____ in a circuit.

Analog meters operate on the principle that like magnetic poles attract each other.

An oscilloscope is a(n) ____.

Most AC ammeters use ____ to change scale values.

The ____ is used to measure resistance.

Most voltmeters are ____ voltmeters.

The ohmmeter ____.