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Measurement and Instrumentation

Measurement and Instrumentation
An electric pyrometer is an instrument used to measure

Frequency
Phase
High temperatures
None of the listed here

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

Voltage
Resistance
Current
Frequency

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Measurement and Instrumentation
What is the expression for momentum?

 force × displacement
 mass × acceleration
 mass × velocity
 change of velocity / time

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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

 ± 3%
 ± 4%
 ± 2.8%
 ± 6%

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Measurement and Instrumentation
In a ballistic galvanometer, the deflecting torque is proportional to

The current through coil
Sine of measured
Square-root of current through coil
Square of current through coil

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Measurement and Instrumentation
The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance

 ± 2.5%
 ± 3.5%
 ± 1%
 ± 1.5%

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