Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are Any of the listed here One voltmeter, one ammeter and one wattmeter One voltmeter and one ammeter One ammeter, one voltmeter and one energy meter Any of the listed here One voltmeter, one ammeter and one wattmeter One voltmeter and one ammeter One ammeter, one voltmeter and one energy meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is 200 V. 25 V. 50 V. 100 V. 200 V. 25 V. 50 V. 100 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A megger is usually Electro-static type instrument Moving coil type instrument Hot-wire type instrument Moving iron type instrument Electro-static type instrument Moving coil type instrument Hot-wire type instrument Moving iron type instrument ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In two wattmeter method of power measurement if the total power is measured by one wattmeter only then power factor of the system is none of above. 1. 0.5. 0. none of above. 1. 0.5. 0. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The smallest change in measured variable to which instrument will respond is resolution. precision. sensitivity. accuracy. resolution. precision. sensitivity. accuracy. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 3% ± 4% ± 2.8% ± 6% ± 3% ± 4% ± 2.8% ± 6% ANSWER DOWNLOAD EXAMIANS APP
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