Measurement and Instrumentation The two pressure coils of a single phase power factor meter have The same number of turns but different dimensions None of these The same dimension but different number of turns The same dimensions and the same number of turns The same number of turns but different dimensions None of these The same dimension but different number of turns The same dimensions and the same number of turns ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Stray magnetic fields. Stray thermal emfs. Errorneous standardisation. Ripples of the DC supply. Stray magnetic fields. Stray thermal emfs. Errorneous standardisation. Ripples of the DC supply. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.50 A. 0.70 A. 0.67 A. 0.25 A. 0.50 A. 0.70 A. 0.67 A. 0.25 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The transfer instrument which is used for standardization of a polar type AC potentiometer is an electrostatic instrument. a dynamometer instrument. a thermal instrument. a moving coil instrument. an electrostatic instrument. a dynamometer instrument. a thermal instrument. a moving coil instrument. 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. It would not be possible to assess the sensitivity on the basis of the given data. X is more sensitive. Y is more sensitive. Both X and Y are equally sensitive. It would not be possible to assess the sensitivity on the basis of the given data. X is more sensitive. Y is more sensitive. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When the pointer of an indicating instrument comes to rest in the final deflected position, ______ None of the listed here Only deflecting torque acts Both deflecting and controlling torques act Only controlling torque acts None of the listed here Only deflecting torque acts Both deflecting and controlling torques act Only controlling torque acts ANSWER DOWNLOAD EXAMIANS APP
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