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 0.5. none of above. 1. 0. 0.5. none of above. 1. 0. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The scale of hot wire ammeter is Linear. Non Linear. Absloute linear. Cramped. Linear. Non Linear. Absloute linear. Cramped. 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? 32.56 W . 28.12 W. None of these 25.45 W. 32.56 W . 28.12 W. None of these 25.45 W. ANSWER DOWNLOAD EXAMIANS APP
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? 0.73 1 0.84 0.65 0.73 1 0.84 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When a potentiometer is used for measurement of voltage of an unknown source, the power consumed in the circuit of the unknown source under null condition is small. very high. ideally zero. high. small. very high. ideally zero. high. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Relative error is same as true error. absolute error. None of these ratio of absolute error and true value. true error. absolute error. None of these ratio of absolute error and true value. ANSWER DOWNLOAD EXAMIANS APP
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