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? 0.84 1 0.65 0.73 0.84 1 0.65 0.73 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wien bridge is useful for measuring Medium frequency Low frequency Very high frequency High frequency Medium frequency Low frequency Very high frequency High frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To increase Q factor of a coil, the wire should be long and thin. thick. long. thin. long and thin. thick. long. thin. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.50 A. 0.25 A. 0.70 A. 0.67 A. 0.50 A. 0.25 A. 0.70 A. 0.67 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation PMMC Instrument can be used for AC work only None of the listed here Both AC and DC DC work only AC work only None of the listed here Both AC and DC DC work only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a gravity controlled instrument, the deflection angle is proportional Square of the measurand Sine of the measurand Measurand Sine inverse of measurand Square of the measurand Sine of the measurand Measurand Sine inverse of measurand ANSWER DOWNLOAD EXAMIANS APP
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