Measurement and Instrumentation The power factor of a single phase load can be calculated if the instruments available are One voltmeter and one ammeter One ammeter, one voltmeter and one energy meter One voltmeter, one ammeter and one wattmeter Any of the listed here One voltmeter and one ammeter One ammeter, one voltmeter and one energy meter One voltmeter, one ammeter and one wattmeter Any of the listed here 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 0.25V 0.05V 0.01V 0.01V 0.25V 0.05V 0.01V 0.01V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of Weston standard cell is of order of 1000 ohm. 10 ohm. 100 ohm. 1 ohm. 1000 ohm. 10 ohm. 100 ohm. 1 ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If two meters X and Y require 40 mA and 50 mA respectively, to give full scale deflection, then Both X and Y are equally sensitive. X is more sensitive. It would not be possible to assess the sensitivity on the basis of the given data. Y is more sensitive. Both X and Y are equally sensitive. X is more sensitive. It would not be possible to assess the sensitivity on the basis of the given data. Y is more sensitive. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation No eddy current and hysteresis losses occur in Electrodynamo meter instruments PMMC instruments Electrostatic instruments Moving iron instruments Electrodynamo meter instruments PMMC instruments Electrostatic instruments Moving iron instruments ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure ac as well as dc power, we use Induction wattmeter None of the listed here Sometimes induction and sometimes dynamometer wattmeter Dynamometer wattmeter Induction wattmeter None of the listed here Sometimes induction and sometimes dynamometer wattmeter Dynamometer wattmeter ANSWER DOWNLOAD EXAMIANS APP
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