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Measurement and Instrumentation

Measurement and Instrumentation
On a simple ohmmeter, the 0 Ω mark is _______ of the scale.

None of the listed here
In the middle
Far left
Far right

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Measurement and Instrumentation
0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is

 2%
 4%
 3%
 1%

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Measurement and Instrumentation
Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are

360V and 240V
400V and 200V
One of the meters out of the range and other 100V
300V each

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Measurement and Instrumentation
Induction type single phase energy meters measure electric energy in

kW
Wh
kWh
VAR

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Measurement and Instrumentation
Dynamic errors are caused by

 human error
 instrument not responding fast
 environmental error
 observational error

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Measurement and Instrumentation
Alternating current is measured by

Moving iron repulsion type voltmeter
Induction ammeter
Permanent magnet type ammeter
Electrostatic ammeter

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