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Measurement and Instrumentation

Measurement and Instrumentation
Ryall crest voltmeter is used for measurement of

Low frequency voltage
AC voltage of any form
High AC voltage
High DC voltage

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Measurement and Instrumentation
Which of the quantity consists of unit as Pascal ?

 Pressure
 Impulse
 Force
 Temperature

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Measurement and Instrumentation
A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be

 500 Hz.
 400 Hz.
 625 Hz.
 250 Hz.

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Measurement and Instrumentation
For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is

 1.2%
 10.2%
 5.2%
 25.2%

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Measurement and Instrumentation
A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

 0.0012 Ohm.
 120 Ohm.
 240 Ohm.
 0.0024 Ohm.

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

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

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MORE MCQ ON Measurement and Instrumentation

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