Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 1 0.73 0.84 0.65 1 0.73 0.84 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Schering bridge is used to measure which of the following? Resistance. Frequency. Capacitance. Inductance. Resistance. Frequency. Capacitance. Inductance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be 11 µF. 0.1 µF. 0.09 µF. 10 µF. 11 µF. 0.1 µF. 0.09 µF. 10 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is 0.01V 0.05V 0.01V 0.25V 0.01V 0.05V 0.01V 0.25V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The dynamometer principle can be used for wattmeter only. voltmeter only. ammeter, voltmeter and wattmeter. ammeter only. wattmeter only. voltmeter only. ammeter, voltmeter and wattmeter. ammeter only. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Deflection method direct measurements are most widely used as these are most simple. most simple and least time consuming. most accurate. least time consuming. most simple. most simple and least time consuming. most accurate. least time consuming. ANSWER DOWNLOAD EXAMIANS APP
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