Measurement and Instrumentation A PMMC voltmeter is connected across a series combination of a DC voltage source V1 = 2 V and an AC voltage source V2 = 3sin4t, the voltmeters reads (2 + √3/2)V. 5 V. 0 V. 2 V. (2 + √3/2)V. 5 V. 0 V. 2 V. 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 0.25 A. 0.67 A. 0.50 A. 0.70 A. 0.25 A. 0.67 A. 0.50 A. 0.70 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Electrostatic instruments are normally used for High voltage measurements High current measurements Low voltage measurements Low current measurements High voltage measurements High current measurements Low voltage measurements Low current measurements ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wien bridge is useful for measuring High frequency Low frequency Very high frequency Medium frequency High frequency Low frequency Very high frequency Medium frequency 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 ± 6% ± 5% ± 8% ± 7% ± 6% ± 5% ± 8% ± 7% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An analog ammeter is a recording instrument. an absolute instrument. a controlling instrument. an indicating instrument. a recording instrument. an absolute instrument. a controlling instrument. an indicating instrument. ANSWER DOWNLOAD EXAMIANS APP
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