Measurement and Instrumentation The calibration of a voltmeter can be carried out by using A frequency meter. A function generator. An ammeter. A potentiometer. A frequency meter. A function generator. An ammeter. A potentiometer. 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? 0.65 0.84 0.73 1 0.65 0.84 0.73 1 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Current transformers Shunt Potential transformers All of the listed here Current transformers Shunt Potential transformers All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The range of a moving iron ac ammeter is extended by None of the listed here A shunt A multiplier Changing number of turns of operating coil None of the listed here A shunt A multiplier Changing number of turns of operating coil ANSWER DOWNLOAD EXAMIANS APP
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% 1.2% 10.2% 5.2% 25.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The multiplier and the meter coil in a voltmeter are in Series-parallel None of the listed here Series Parallel Series-parallel None of the listed here Series Parallel ANSWER DOWNLOAD EXAMIANS APP
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