Measurement and Instrumentation PMMC type instruments normally use Air friction damping Fluid friction damping None of these Eddy current damping Air friction damping Fluid friction damping None of these Eddy current damping 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. 105.6o. 30o. 63.25o. 150o. 105.6o. 30o. 63.25o. 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 16.02 rpm. 18.2 rpm. 21.1 rpm. 12.8 rpm. 16.02 rpm. 18.2 rpm. 21.1 rpm. 12.8 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance can be measured most accurately by Megger Bridge method Multimeter Voltmeter-ammeter method Megger Bridge method Multimeter Voltmeter-ammeter method ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ± 2.24) A (400 ± 1) A (400 ±5) A (400 ± 3) A (400 ± 2.24) A (400 ± 1) A (400 ±5) A (400 ± 3) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction wattmeter can be used for Dc only Any of the listed here Ac only Both DC and AC Dc only Any of the listed here Ac only Both DC and AC ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS