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Measurement and Instrumentation

Measurement and Instrumentation
The best type of meter moment is ______ moment.

D'Arsonval
Dynamometer
Iron- vane
None of the listed here

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Measurement and Instrumentation
Following is a 16-bit register for 8085 microprocessor

 Accumulator
 Register B
 Register C
 Stack pointer

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Measurement and Instrumentation
The transfer instrument which is used for standardization of a polar type AC potentiometer is

 a dynamometer instrument.
 a thermal instrument.
 an electrostatic instrument.
 a moving coil instrument.

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Measurement and Instrumentation
The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ?

 ±0.5%
 ± 1.5%
 ±3.5%
 ± 3.0%

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Measurement and Instrumentation
A moving coil ammeter has a uniform scale with 50 division and gives a full scale reading 10 A. The instrument can read up to (1/5)th of a scale division with a fair degree of certainty. What is the resolution of the instrument in mA?

 25 mA.
  40 mA.
 80 mA.
 50 mA.

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Measurement and Instrumentation
It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor?

100W
50W
150W
200W

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