Measurement and Instrumentation A galvanometer has Spring coil damping Fluid friction damping Eddy current damping Air friction damping Spring coil damping Fluid friction damping Eddy current damping Air friction damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measurement of high direct voltage, one would use _____ voltmeter. PMMC Moving iron Hot wire Electrostatic PMMC Moving iron Hot wire Electrostatic ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? 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. It consist of two coils mounted at right angles to each other. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Active power of Y phase Active power in R phase Power proportional to 3 phase power if the load is balanced Reactive power of R phase Active power of Y phase Active power in R phase Power proportional to 3 phase power if the load is balanced Reactive power of R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The main advantage of Anderson bridge over Maxwell bridge is that measures high Q inductors. attaining balance condition is easier. balance equation independent of frequency. reduction of the cost. measures high Q inductors. attaining balance condition is easier. balance equation independent of frequency. reduction of the cost. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation 0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is 3% 4% 2% 1% 3% 4% 2% 1% ANSWER DOWNLOAD EXAMIANS APP
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