Measurement and Instrumentation Instrument transformers are Current transformers Pottential transformers Power transformers Both current and potential transformers Current transformers Pottential transformers Power transformers Both current and potential transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 200 V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by this instrument is 50 V. What is the limiting error? 3% 2% 4% 5% 3% 2% 4% 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be 100Hz 500Hz 1kHz 50Hz 100Hz 500Hz 1kHz 50Hz ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A slide wire potentiometer has 10 wires of 1 m each. With the help of a standard voltage source of 1.018 V it is standardised by keeping the jockey at 101.8 cm. If the resistance of the potentiometer wires is 1000 ohm, then the value of the working current will be 1mA. 0.5 mA. 10 mA. 100 mA. 1mA. 0.5 mA. 10 mA. 100 mA. 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? 0.84 1 0.73 0.65 0.84 1 0.73 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Electrostatic instruments are used as Ammeters only Wattmeter only Voltmeters only Both ammeter and voltmeter Ammeters only Wattmeter only Voltmeters only Both ammeter and voltmeter ANSWER DOWNLOAD EXAMIANS APP
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