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 0.84 1 0.73 0.65 0.84 1 0.73 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the approximate input impedance of a CRO? 0 100 MΩ 1 MΩ 10 MΩ 0 100 MΩ 1 MΩ 10 MΩ ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which meter is suitable for the measurement of 10mV at 50MHz? Moving coil voltmeter VTVM CRO Moving iron voltmeter Moving coil voltmeter VTVM CRO Moving iron voltmeter 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
Measurement and Instrumentation An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is 3% 4% 6% 5% 3% 4% 6% 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation ______ instruments are most sensitive. Hot wire Dynamometer Permanent magnet moving coil Moving iron Hot wire Dynamometer Permanent magnet moving coil Moving iron ANSWER DOWNLOAD EXAMIANS APP
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