Measurement and Instrumentation No eddy current and hysteresis losses occur in Moving iron instruments PMMC instruments Electrostatic instruments Electrodynamo meter instruments Moving iron instruments PMMC instruments Electrostatic instruments Electrodynamo meter instruments 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. The deflection is proportional to phase angle between field coil and crossed coil. The restoring torque is provided by a controlling torque. Both B and C. It consist of two coils mounted at right angles to each other. The deflection is proportional to phase angle between field coil and crossed coil. The restoring torque is provided by a controlling torque. Both B and C. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC potentiometer is the best means available for the measurement of DC voltage because The precision in measurment is independent of the type of the defector used. It is possible to standardize before a measurement is undertaken. None of above. It is based on null balance technique. The precision in measurment is independent of the type of the defector used. It is possible to standardize before a measurement is undertaken. None of above. It is based on null balance technique. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is 20. 54.2. 31.4. 25.4. 20. 54.2. 31.4. 25.4. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for minimum effect on the current in the circuit. high sensitivity. high accuracy. high precision. minimum effect on the current in the circuit. high sensitivity. high accuracy. high precision. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil permanent magnet instrument can be used as ______ by using a low resistance shunt. Flux meter Ammeter Ballastic galvanometer Voltmeter Flux meter Ammeter Ballastic galvanometer Voltmeter ANSWER DOWNLOAD EXAMIANS APP
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