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MEASUREMENT AND INSTRUMENTATION

Measurement and Instrumentation
When using ohmmeter, applied voltage is to be disconnected from the circuit because

The ohmmeter has its own internal battery
Current will decrease resistance
None of these
Voltage source will increase resistance

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Measurement and Instrumentation
A 10MHz CRO has

5MHz sweep
10MHz vertical oscillator
10MHz supply frequency
10MHz horizontal oscillator

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Measurement and Instrumentation
A CRO can display

AC signals
Both AC and DC signals
Time invariant signals
DC signals

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Measurement and Instrumentation
A galvanometer has

Fluid friction damping
Spring coil damping
Eddy current damping
Air friction damping

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Measurement and Instrumentation
A megger is usually

Hot-wire type instrument
Electro-static type instrument
Moving coil type instrument
Moving iron type instrument

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