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 none of above. 1. 0. 0.5. none of above. 1. 0. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows sinisoidal. an ellipse. a circle. a straight line. sinisoidal. an ellipse. a circle. a straight line. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The ratio of change in output to the change in the input is called precision sensitivity repeatability resolution precision sensitivity repeatability resolution ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The use of thermocouple meters for AC measurement leads to scale which is square law. linear. expontial. logarithmic. square law. linear. expontial. logarithmic. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 200 V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by this instrument is 50 V. What is the limiting error? 3% 4% 2% 5% 3% 4% 2% 5% 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? 0.84 0.65 1 0.73 0.84 0.65 1 0.73 ANSWER DOWNLOAD EXAMIANS APP
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