Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 3750 rev/KWh. 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.25 A. 0.50 A. 0.70 A. 0.67 A. 0.25 A. 0.50 A. 0.70 A. 0.67 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In AC circuits, the connection of measuring instruments cause loading effect errors which may effect 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. magnitude, phase and waveform of the quantity being measured. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Moving iron Hot wire Thermocouple Dynamometer Moving iron Hot wire Thermocouple Dynamometer 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 faster response. a lower sensitivity. All of these a higher accuracy. a faster response. a lower sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are One voltmeter and one ammeter Any of the listed here One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter One voltmeter and one ammeter Any of the listed here One voltmeter, one ammeter and one wattmeter One ammeter, one voltmeter and one energy meter ANSWER DOWNLOAD EXAMIANS APP
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