Measurement and Instrumentation The watt hour meter is ______ instrument. A recording An integrating A transfer An indicating A recording An integrating A transfer An indicating ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 150∠30° ohm. 600∠-150° ohm. 300∠90° ohm. 400∠-90° ohm. 150∠30° ohm. 600∠-150° ohm. 300∠90° ohm. 400∠-90° ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? Small range thermocouple voltmeter None of these C. potentiometer Small range moving coil voltmeter Small range thermocouple voltmeter None of these C. potentiometer Small range moving coil voltmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.917 lag. 0.6 lag. 0.917 lead. 0.6 lead. 0.917 lag. 0.6 lag. 0.917 lead. 0.6 lead. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A dynamometer wattmeter can be used for DC only AC only Any of the listed here Both DC and AC DC only AC only Any of the listed here Both DC and AC 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. 0 W. 100 W. 50 W. 25 W. 0 W. 100 W. 50 W. ANSWER DOWNLOAD EXAMIANS APP
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