Measurement and Instrumentation A dynamometer wattmeter can be used for AC only DC only Both DC and AC Any of the listed here AC only DC only Both DC and AC Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measuring an AC voltage by an AC potentiometer it is desirable that the supply for the potentiometer is taken from A source other than the source of unknown voltage. A battery. Any of above. The same source as the unknown voltage. A source other than the source of unknown voltage. A battery. Any of above. The same source as the unknown voltage. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 1 mA. 3 mA. 4 mA. 2 mA. 1 mA. 3 mA. 4 mA. 2 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. A shunt should have a very low resistance. An ammeter should have a very low resitance. An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. A shunt should have a very low resistance. An ammeter should have a very low resitance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Shunt Potential transformers Current transformers All of the listed here Shunt Potential transformers Current transformers All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Commonly used instruments in power system measurement are Induction Electrostatic Moving coil or iron Rectifier Induction Electrostatic Moving coil or iron Rectifier ANSWER DOWNLOAD EXAMIANS APP
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