Measurement and Instrumentation The three resistors R1, R2 and R3 have the following ratings: R1 = 25Ω ± 4%, R2 = 65 Ω ± 4%; R3 =45 Ω ± 4%. If the resistance are connected in series, then limiting error produced in equivalent resistance is 1% 2% 3% 4% 1% 2% 3% 4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. 18.2 rpm. 12.8 rpm. 16.02 rpm. 21.1 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The absolute measurement of resistance is done by Ohm’s law method Rayleigh method Lorenz method Bridge Method Ohm’s law method Rayleigh method Lorenz method Bridge Method ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Commonly used instruments in power system measurement are Electrostatic Rectifier Induction Moving coil or iron Electrostatic Rectifier Induction Moving coil or iron ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation 0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is 1% 4% 2% 3% 1% 4% 2% 3% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The function of shunt in an ammeter is to None of the listed here Increase the resistance of ammeter By pass the current Increase the sensitivity of the ammeter None of the listed here Increase the resistance of ammeter By pass the current Increase the sensitivity of the ammeter ANSWER DOWNLOAD EXAMIANS APP
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