Measurement and Instrumentation A PMMC instrument can be used as flux meter By making control springs of large moment of inertia By using a low resistance shunt By using a high series resistance By eliminating the control springs By making control springs of large moment of inertia By using a low resistance shunt By using a high series resistance By eliminating the control springs ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following are needed both for protection and metering? Power factor meters. Wattmeters. Energy meter. Instrument transformer. Power factor meters. Wattmeters. Energy meter. Instrument transformer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be ± 6% ± 7% ± 8% ± 5% ± 6% ± 7% ± 8% ± 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In AC circuits, the connection of measuring instruments cause loading effect errors which may effect only the magnitude of the quantity being measured. magnitude, phase and waveform of the quantity being measured. both of above. only phase of the quantity being measured. only the magnitude of the quantity being measured. magnitude, phase and waveform of the quantity being measured. both of above. only phase of the quantity being measured. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A null type instrument as compared to a deflected type instrument has All of these a higher accuracy. a lower sensitivity. a faster response. All of these a higher accuracy. a lower sensitivity. a faster response. 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 battery. A source other than the source of unknown voltage. Any of above. The same source as the unknown voltage. A battery. A source other than the source of unknown voltage. Any of above. The same source as the unknown voltage. ANSWER DOWNLOAD EXAMIANS APP
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