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. 1. none of above. 0. 0.5. 1. none of above. 0. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A thermometer having first order dynamics is subjected to a sudden temperature change of 30oc to 150oc. If it has he time constant of 5 sec, what temperature will be indicated by after 5 sec? 30o. 150o. 105.6o. 63.25o. 30o. 150o. 105.6o. 63.25o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For handling greater currents induction watt-meters are used in conjunction with Power transformers Either of the above Potential transformers Current transformers Power transformers Either of the above Potential transformers Current transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Most sensitive galvanometer is Elastic galvanometer Duddle galvanometer Spot ballastic galvanometer Vibration galvanometer Elastic galvanometer Duddle galvanometer Spot ballastic galvanometer Vibration galvanometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. A shunt should have a very low resistance. An ammeter should have a very low resitance. Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. A shunt should have a very low resistance. An ammeter should have a very low resitance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The EMF of Weston standard cell is measured using Moving- iron meter Potentiometer Moving-coil meter Digital Volt meter Moving- iron meter Potentiometer Moving-coil meter Digital Volt meter ANSWER DOWNLOAD EXAMIANS APP
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