Measurement and Instrumentation The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be 1% 1.5% 1.2% 0.5% 1% 1.5% 1.2% 0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In AC circuits, the connection of measuring instruments cause loading effect errors which may effect magnitude, phase and waveform of the quantity being measured. only phase of the quantity being measured. only the magnitude of the quantity being measured. both of above. magnitude, phase and waveform of the quantity being measured. only phase of the quantity being measured. only the magnitude of the quantity being measured. both of above. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The adjustment of position of shading bands, in an energy meter is done to provide Friction compensation None of the listed here Breaking torque Creep compensation Friction compensation None of the listed here Breaking torque Creep compensation ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Double the power rating of the resistor Reduce the inductance of winding Increase the thermal stability Reduce the tolerance Double the power rating of the resistor Reduce the inductance of winding Increase the thermal stability Reduce the tolerance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following are needed both for protection and metering? Energy meter. Power factor meters. Instrument transformer. Wattmeters. Energy meter. Power factor meters. Instrument transformer. Wattmeters. ANSWER DOWNLOAD EXAMIANS APP
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
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