Measurement and Instrumentation Piezoelectronic accelerometer Should be used for high frequencies above 100 Hz. Has a low natural frequency. Should use a monitoring source at low input impedance. Should be used for low frequency. Should be used for high frequencies above 100 Hz. Has a low natural frequency. Should use a monitoring source at low input impedance. Should be used for low frequency. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Most sensitive galvanometer is Elastic galvanometer Spot ballastic galvanometer Vibration galvanometer Duddle galvanometer Elastic galvanometer Spot ballastic galvanometer Vibration galvanometer Duddle galvanometer 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 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 Power proportional to 3 phase power if the load is balanced Reactive power of R phase 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 lead. 0.6 lag. 0.917 lag. 0.6 lead. 0.917 lead. 0.6 lag. 0.917 lag. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil Current coil and potential coil Potential coil None of the listed here Current coil Current coil and potential coil Potential coil None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A galvanometer has Eddy current damping Fluid friction damping Air friction damping Spring coil damping Eddy current damping Fluid friction damping Air friction damping Spring coil damping ANSWER DOWNLOAD EXAMIANS APP
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