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Measurement and Instrumentation

Measurement and Instrumentation
The resistance can be measured most accurately by

Multimeter
Megger
Voltmeter-ammeter method
Bridge method

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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

 1.7 V.
 1 V.
 1.34 V.
 1.5 V.

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Measurement and Instrumentation
The resistance in the circuit of the moving coil of a dynamometer wattmeter should be

Low
High
Almost zero
None of the listed here

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Measurement and Instrumentation
A multirange instrument has

Multiple shunt or series resistance inside the meter
Multirange meters inside the measurement system
Variable turns of coil
Multicoil arrangement

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Measurement and Instrumentation
When checked with an ohm meter an open resistor reads

  high but within tolerance.
  zero.
  infinite.
  low but not zero.

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Measurement and Instrumentation
Symmetric errors are

Environment errors
Observational errors
Instrument errors
All of the listed here

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MORE MCQ ON Measurement and Instrumentation

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