Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? Small range thermocouple voltmeter None of these Small range moving coil voltmeter C. potentiometer Small range thermocouple voltmeter None of these Small range moving coil voltmeter C. potentiometer ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Systematic errors are observational errors. environmental errors. instrument errors. All of these observational errors. environmental errors. instrument errors. All of these 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% ± 7% ± 6% ± 5% ± 8% ± 7% ± 6% ± 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A pressure measurement instrument is calibrated between 10 bar and 260 bar. The scale span of the instrument is 270 bar. 10 bar. 250 bar. 260 bar. 270 bar. 10 bar. 250 bar. 260 bar. 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 wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of Resistance of connecting leads. Contact resistance. Thermoelectric emfs. All of above. Resistance of connecting leads. Contact resistance. Thermoelectric emfs. All of above. ANSWER DOWNLOAD EXAMIANS APP
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