Measurement and Instrumentation Electrostatic instruments are used as Both ammeter and voltmeter Voltmeters only Wattmeter only Ammeters only Both ammeter and voltmeter Voltmeters only Wattmeter only Ammeters only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Kelvin’s double bridge is used to measure low resistance because there is no thermo electric emf. effect of contact and lead resistance is eliminated. it has high sensitivity. resistance variation due to temperature. there is no thermo electric emf. effect of contact and lead resistance is eliminated. it has high sensitivity. resistance variation due to temperature. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Shunt Current transformers All of the listed here Potential transformers Shunt Current transformers All of the listed here Potential transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 1 mA meter is to be converted to 1 A ammeter. The meter resistance is 100 Ω. The value of shunt resistance 1000 Ω. 0.001 Ω. 0.1001 Ω. 100 Ω. 1000 Ω. 0.001 Ω. 0.1001 Ω. 100 Ω. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation 0-150 V voltmeter has an accuracy of 1% of full-scale reading. The voltage measured by the instrument is 75 V. The limiting error is 2% 4% 3% 1% 2% 4% 3% 1% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is √2V. 2√2V. Zero. 2V. √2V. 2√2V. Zero. 2V. ANSWER DOWNLOAD EXAMIANS APP
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