Measurement and Instrumentation Which of following is not correct? A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. An ammeter should have a very low resitance. Voltmeter should have very high resistance. A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. An ammeter should have a very low resitance. Voltmeter should have very high resistance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following voltmeters would you use for measuring voltage across 20KΩ resistance Voltmeter having sensitivity of 10 KW/V. None of above. Voltmeter having a resistance of 5 ΩK. Voltmeter having sensitivity of 1 KW/V. Voltmeter having sensitivity of 10 KW/V. None of above. Voltmeter having a resistance of 5 ΩK. Voltmeter having sensitivity of 1 KW/V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wagner earthing device is used to eliminate errors due to Electromagnetic coupling Both A and B Electrostatic coupling None of these Electromagnetic coupling Both A and B Electrostatic coupling None of these 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 0.67 A. 0.70 A. 0.25 A. 0.50 A. 0.67 A. 0.70 A. 0.25 A. 0.50 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following are needed both for protection and metering? Wattmeters. Instrument transformer. Energy meter. Power factor meters. Wattmeters. Instrument transformer. Energy meter. Power factor meters. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 1.5% ± 2.5% ± 1% ±3.5% ± 1.5% ± 2.5% ± 1% ±3.5% ANSWER DOWNLOAD EXAMIANS APP
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