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 Active power in R phase Active power of Y phase Reactive power of R phase Power proportional to 3 phase power if the load is balanced Active power in R phase Active power of Y phase Reactive power of R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.65 1 0.84 0.73 0.65 1 0.84 0.73 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the quantity consists of unit as kg m/sec ? Momentum Impulse Speed Acceleration Momentum Impulse Speed Acceleration ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be 100 mA. 1mA. 0.5 mA. 10 mA. 100 mA. 1mA. 0.5 mA. 10 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A power factor meter has One current circuit and one pressure circuit None of the listed here Two current circuit and one pressure circuit One current circuit and two pressure circuits One current circuit and one pressure circuit None of the listed here Two current circuit and one pressure circuit One current circuit and two pressure circuits ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Moving iron instruments have _____ scale. None of the listed here Squared Log Uniform None of the listed here Squared Log Uniform ANSWER DOWNLOAD EXAMIANS APP
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