Measurement and Instrumentation Commonly used instruments in power system measurement are Rectifier Electrostatic Induction Moving coil or iron Rectifier Electrostatic Induction Moving coil or iron 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? 1 0.84 0.65 0.73 1 0.84 0.65 0.73 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a gravity controlled instrument, the deflection angle is proportional Measurand Square of the measurand Sine of the measurand Sine inverse of measurand Measurand Square of the measurand Sine of the measurand Sine inverse of measurand ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The dynamometer principle can be used for wattmeter only. voltmeter only. ammeter only. ammeter, voltmeter and wattmeter. wattmeter only. voltmeter only. ammeter only. ammeter, voltmeter and wattmeter. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An induction meter can handle current upto 10 A 100 A 60 A 30 A 10 A 100 A 60 A 30 A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be 15 V. 10.6 V. 12.6 V. 11.1 V. 15 V. 10.6 V. 12.6 V. 11.1 V. ANSWER DOWNLOAD EXAMIANS APP