Measurement and Instrumentation Wien bridge is useful for measuring Medium frequency Very high frequency High frequency Low frequency Medium frequency Very high frequency High frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Relative error is same as ratio of absolute error and true value. absolute error. true error. None of these ratio of absolute error and true value. absolute error. true error. None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The calibration of a voltmeter can be carried out by using A potentiometer. A frequency meter. A function generator. An ammeter. A potentiometer. A frequency meter. A function generator. An ammeter. 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 3% 4% 1% 2% 3% 4% 1% 2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Kelvin’s double bridge is used to measure low resistance because there is no thermo electric emf. resistance variation due to temperature. effect of contact and lead resistance is eliminated. it has high sensitivity. there is no thermo electric emf. resistance variation due to temperature. effect of contact and lead resistance is eliminated. it has high sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be ± 8% ± 5% ± 7% ± 6% ± 8% ± 5% ± 7% ± 6% ANSWER DOWNLOAD EXAMIANS APP
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