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? 0.65 0.84 0.73 1 0.65 0.84 0.73 1 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a CRO which of following is not a part of electron gun? Accelerating anode X-Y plates Grid Cathode Accelerating anode X-Y plates Grid Cathode ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The function of shunt in an ammeter is to None of the listed here Increase the sensitivity of the ammeter Increase the resistance of ammeter By pass the current None of the listed here Increase the sensitivity of the ammeter Increase the resistance of ammeter By pass the current 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 A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be 25 W. 100 W. 0 W. 50 W. 25 W. 100 W. 0 W. 50 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Symmetric errors are Observational errors Instrument errors Environment errors All of the listed here Observational errors Instrument errors Environment errors All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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