Measurement and Instrumentation Electrostatic instruments are used as Ammeters only Both ammeter and voltmeter Wattmeter only Voltmeters only Ammeters only Both ammeter and voltmeter Wattmeter only Voltmeters only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following are needed both for protection and metering? Energy meter. Power factor meters. Instrument transformer. Wattmeters. Energy meter. Power factor meters. Instrument transformer. Wattmeters. 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 0.73 0.65 1 0.84 0.73 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A potentiometer may be used for Calibration of ammeter All of the listed here Measurrment of resistance Measurement of current Calibration of ammeter All of the listed here Measurrment of resistance Measurement of current ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Instrument transformers are Current transformers Power transformers Both current and potential transformers Pottential transformers Current transformers Power transformers Both current and potential transformers Pottential transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is 240 Ohm. 120 Ohm. 0.0024 Ohm. 0.0012 Ohm. 240 Ohm. 120 Ohm. 0.0024 Ohm. 0.0012 Ohm. ANSWER DOWNLOAD EXAMIANS APP
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