Measurement and Instrumentation Which of the following are integrating instruments? Ammeters Ampere hour and watt hour meters Voltmeters Wattmeters Ammeters Ampere hour and watt hour meters Voltmeters Wattmeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance in the circuit of the moving coil of a dynamometer wattmeter should be None of the listed here Almost zero Low High None of the listed here Almost zero Low High ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 21.1 rpm. 12.8 rpm. 18.2 rpm. 16.02 rpm. 21.1 rpm. 12.8 rpm. 18.2 rpm. 16.02 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion (A) : It is always desirable to take the reading of an indicating instrument very close to the full scale reading. Reason (R) : Accuracy of an indicating instrument is maximum at the full scale deflection and error increases as reading comes closer to the beginning of the scale. Both A and R are true but R is NOT the correct explanation of A A is true but R is false A is false bur R is true Both A and R are true and R is the correct explanation of A Both A and R are true but R is NOT the correct explanation of A A is true but R is false A is false bur R is true Both A and R are true and R is the correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
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 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? 150o. 30o. 105.6o. 63.25o. 150o. 30o. 105.6o. 63.25o. ANSWER DOWNLOAD EXAMIANS APP
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