Measurement and Instrumentation A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is 25 V. 50 V. 200 V. 100 V. 25 V. 50 V. 200 V. 100 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? It consist of two coils mounted at right angles to each other. Both B and C. The restoring torque is provided by a controlling torque. The deflection is proportional to phase angle between field coil and crossed coil. It consist of two coils mounted at right angles to each other. Both B and C. The restoring torque is provided by a controlling torque. The deflection is proportional to phase angle between field coil and crossed coil. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a single phase energy meter, braking torque is provided by Fluid friction Air friction None of the listed here Permanent magnet Fluid friction Air friction None of the listed here Permanent magnet ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be 0.5% 1% 1.5% 1.2% 0.5% 1% 1.5% 1.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter may be compensated for frequency errors by Series resistance A shunt resistance A series inductance Shunt capacitance Series resistance A shunt resistance A series inductance Shunt capacitance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of an ammeter should be Very small Medium Infinity High Very small Medium Infinity High ANSWER DOWNLOAD EXAMIANS APP
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