Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil None of the listed here Current coil and potential coil Potential coil Current coil None of the listed here Current coil and potential coil Potential coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by A shunt Changing number of turns of operating coil A multiplier None of the listed here A shunt Changing number of turns of operating coil A multiplier None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The calibration of a voltmeter can be carried out by using A function generator. A frequency meter. An ammeter. A potentiometer. A function generator. A frequency meter. An ammeter. A potentiometer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following voltmeters would you use for measuring voltage across 20KΩ resistance None of above. Voltmeter having sensitivity of 10 KW/V. Voltmeter having a resistance of 5 ΩK. Voltmeter having sensitivity of 1 KW/V. None of above. Voltmeter having sensitivity of 10 KW/V. Voltmeter having a resistance of 5 ΩK. Voltmeter having sensitivity of 1 KW/V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Active power of Y phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power in R phase Active power of Y phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power in R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 1 0.84 0.65 0.73 1 0.84 0.65 0.73 ANSWER DOWNLOAD EXAMIANS APP
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