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Measurement and Instrumentation

Measurement and Instrumentation
The multiplier and the meter coil in a voltmeter are in

Parallel
Series
None of the listed here
Series-parallel

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

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

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Measurement and Instrumentation
The high torque to weight ratio in an analog indicating instrument indicates

 low friction loss.
 none of these.
 high friction loss.
 nothing related to friction loss.

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Measurement and Instrumentation
A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is

 1.5 V.
 1.34 V.
 1.7 V.
 1 V.

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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

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

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Measurement and Instrumentation
The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is

 ± 6%
 ± 4%
 ± 2.8%
 ± 3%

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MORE MCQ ON Measurement and Instrumentation

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