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Measurement and Instrumentation

Measurement and Instrumentation
What is the standard unit for length ?

 Meter
 Kilometer
 Centimeter
 Inch

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Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

 150∠30° ohm.
 600∠-150° ohm.
 300∠90° ohm.
 400∠-90° ohm.

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Measurement and Instrumentation
An electrodynamic meter can be used to measure

 DC voltage.
 DC current.
  both AC and DC voltage.
 AC volatge.

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Measurement and Instrumentation
If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

 V1 = 300V and V2 = 200V.
 V1 = 250V and V2 = 250V.
 V1 = 200V and V2 = 300V.
 V1 = 0V and V2 = 0V.

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Measurement and Instrumentation
The electrical power to a megger is provided by

Any of the listed here
Ac generator
Permanent magnet dc generator
Battery

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Measurement and Instrumentation
The Metric System is also called as:

 MKS system
 SI
None of these
 CGS

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