Electricity

Front 1

how does an ammeter work?

Back 1

transfers the magnetic field of current flowing through a conductor to meter movement

Front 2

what is the result on the meter reading of clamping the jaws of a of a clamp on ammeter around two wires?

Back 2

nothing; the magnetic field of the conductors counter act each other

Front 3

How can a very small ampere draw be measured with a clamp on ammeter?

Back 3

wrap the conductor around the jaws of the clamp on ammeter, and divide the reading by the number of loops of the conductor

Front 4

If a conductor was wrapped around the jaws of a clamp on ammeter four times, the proper reading would be......... if the clamp on ammeter was reading 16 amps

Back 4

4 amps

Front 5

air conditioning or refrigeration equipment can operate properly at ............ % above or below its rated voltage?

Back 5

10

Front 6

If a technician has no idea of the voltage available to a unit, what procedure should be fallowed on reading the voltage?

Back 6

The technician should start with the highest volt scale and reduce the setting, as required, to read in the middle of the meter scale.