Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil and potential coil Current coil Potential coil None of the listed here Current coil and potential coil Current coil Potential coil None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.6 lead. 0.917 lag. 0.917 lead. 0.6 lag. 0.6 lead. 0.917 lag. 0.917 lead. 0.6 lag. ANSWER DOWNLOAD EXAMIANS APP
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 50 V. 200 V. 100 V. 25 V. 50 V. 200 V. 100 V. 25 V. 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 Power proportional to 3 phase power if the load is balanced Reactive power of R phase Active power in R phase Active power of Y phase Power proportional to 3 phase power if the load is balanced Reactive power of R phase Active power in R phase Active power of Y phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wagner earthing device is used to eliminate errors due to None of these Electrostatic coupling Electromagnetic coupling Both A and B None of these Electrostatic coupling Electromagnetic coupling Both A and B ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a portable instrument , the controlling torque is provided by Eddy currents Spring All of the listed here Gravity Eddy currents Spring All of the listed here Gravity ANSWER DOWNLOAD EXAMIANS APP
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