Measurement and Instrumentation The error of an instrument is normally given as a percentage of Mean value Rms value Full-scale value Measured value Mean value Rms value Full-scale value Measured value ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power? 25.45 W. 32.56 W . None of these 28.12 W. 25.45 W. 32.56 W . None of these 28.12 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A single phase load is connected between R and Y terminals of a 415 V, symmetrical, 3-phase, 4 wire system with phase sequence RYB. A wattmeter is connected in the system as shown in figure. The power factor of the load is 0.8 lagging. The wattmeter will read - 795 W. + 795 W. - 597 W. + 597 W. - 795 W. + 795 W. - 597 W. + 597 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then V1 = 200V and V2 = 300V. V1 = 0V and V2 = 0V. V1 = 300V and V2 = 200V. V1 = 250V and V2 = 250V. V1 = 200V and V2 = 300V. V1 = 0V and V2 = 0V. V1 = 300V and V2 = 200V. V1 = 250V and V2 = 250V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following instruments can be used to measure AC current only? Permanent Magnet Type ammeter Moving iron ammeter Moving iron voltmeter Induction type ammeter Permanent Magnet Type ammeter Moving iron ammeter Moving iron voltmeter Induction type ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Induction type single phase energy meters measure electric energy in kW Wh kWh VAR kW Wh kWh VAR ANSWER DOWNLOAD EXAMIANS APP
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