Flashcards in Quiz #2 Deck (10):
Which of the following statements is correct regarding the use of a multimeter when directly measuring current?
It must be connected in series with the circuit.
To properly use a hook-on-type volt/ammeter to check current flow, you must FIRST __________.
hook the jaws of the instrument around the insulated conductor
A multimeter can be used to measure __________.
current, voltage and resistance.
[amps, volts and ohms.]
A multimeter may be damaged by taking a __________.
voltage reading while in the resistance mode
When used for taking resistance measurements, a volt-ohm-milliammeter is normally powered by __________.
internal storage batteries
Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?
An ohmmeter can be used to measure __________.
If you disconnect and arrange both ends of a three conductor cable, without any contact between the individual conductors, a low ohmic value between the ends of a single conductor would indicate __________.
continuity of the conductor
While troubleshooting a circuit in an engine room central control console, a resistor is suspected of being faulty. Which of the following precautions must be observed if an ohmmeter is to be used to check its value?
Resistor's circuit must be de-energized and at least one end of the component isolated.