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? 0.73 0.65 0.84 1 0.73 0.65 0.84 1 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A Lissajous pattern on an oscilloscope has 5 horinzontal tangencies and 2 vertical tangencies. The frequency of horizontal input is 100 Hz. The frequency of the vertical will be 400 Hz. 500 Hz. 625 Hz. 250 Hz. 400 Hz. 500 Hz. 625 Hz. 250 Hz. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high accuracy. minimum effect on the current in the circuit. high precision. high sensitivity. high accuracy. minimum effect on the current in the circuit. high precision. high sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the approximate input impedance of a CRO? 10 MΩ 100 MΩ 1 MΩ 0 10 MΩ 100 MΩ 1 MΩ 0 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pointer of an indicating instrument is generally made of _______ Copper Silver Soft steel Aluminium Copper Silver Soft steel Aluminium ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The watt hour meter is ______ instrument. A transfer An integrating An indicating A recording A transfer An integrating An indicating A recording ANSWER DOWNLOAD EXAMIANS APP
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