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Measurement and Instrumentation

Measurement and Instrumentation
PMMC type instruments normally use

Air friction damping
Fluid friction damping
Eddy current damping
None of these

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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

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

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Measurement and Instrumentation
A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be

 11.1 V.
 12.6 V.
  10.6 V.
 15 V.

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Measurement and Instrumentation
A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be

 1mA.
 100 mA.
 0.5 mA.
 10 mA.

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Measurement and Instrumentation
Resolution of an instrument is

 the maximum quantity it can measure.
 the maximum non linearity.
 the minimum quantity it can measure.
 ability to distinguish polarity.

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Measurement and Instrumentation
Which of the following cannot be measured by multimeters?

Resistance
Voltage
Current
Frequency

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MORE MCQ ON Measurement and Instrumentation

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