Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 3% ± 6% ± 4% ± 2.8% ± 3% ± 6% ± 4% ± 2.8% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ± 1.5% ±3.5% ± 3.0% ±0.5% ± 1.5% ±3.5% ± 3.0% ±0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? C. potentiometer None of these Small range moving coil voltmeter Small range thermocouple voltmeter C. potentiometer None of these Small range moving coil voltmeter Small range thermocouple voltmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Deflection method direct measurements are most widely used as these are most accurate. least time consuming. most simple and least time consuming. most simple. most accurate. least time consuming. most simple and least time consuming. most simple. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion (A) : It is always desirable to take the reading of an indicating instrument very close to the full scale reading. Reason (R) : Accuracy of an indicating instrument is maximum at the full scale deflection and error increases as reading comes closer to the beginning of the scale. A is true but R is false Both A and R are true but R is NOT the correct explanation of A A is false bur R is true Both A and R are true and R is the correct explanation of A A is true but R is false Both A and R are true but R is NOT the correct explanation of A A is false bur R is true Both A and R are true and R is the correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage 2 %. 1 %. 2.66 %. 3.33 %. 2 %. 1 %. 2.66 %. 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
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