MEASUREMENT AND INSTRUMENTATION QUIZ

The Metric System is also called as:

SI

MKS system

None of these

CGS

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Which of the quantity consists of unit as newton-second?

velocity

Acceleration

Impulse

Speed

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Comparison methods are used

because they take least time in measurement.

because they are expensive.

because they are most simple.

when a high accuracy of measurement is required.

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An electrodynamic meter can be used to measure

both AC and DC voltage.

AC volatge.

DC current.

DC voltage.

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To measure the flux, devices used are based on

Hall effect

Voltaic effect

Piezo-electric effect

Photo-voltaic effect

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Potentiometer method of DC voltage measurement is more accurate than direct measurement using a voltmeter because

It loads the circuit moderately.

It does not load the circuit at all.

It uses centre zero galvanometer instead of voltmeter.

It loads the circuit to maximum extent.

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The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used?

1 Ohm

49.99 Ohms

1/49.99 ohms

2 Ohms

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A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is

2√2V.

2V.

Zero.

√2V.

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For measuring a very high resistance we should use

Wheat stone bridge

None of the listed here

Kelvin's double bridge

Megger

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The thermocouple instrument will measure

Current

Voltage

Flux

None of these

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