Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Hot wire type Moving iron type Induction type Moving coil type Hot wire type Moving iron type Induction type Moving coil type 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% 1% 4% 2% 3% 1% 4% 2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The calibration of a voltmeter can be carried out by using An ammeter. A function generator. A frequency meter. A potentiometer. An ammeter. A function generator. A frequency meter. A potentiometer. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The form factor in AC is the ratio of Peak value to average value Rms value to peak value Peak value to rms value Rms value to average value Peak value to average value Rms value to peak value Peak value to rms value Rms value to average value ANSWER DOWNLOAD EXAMIANS APP
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. 2 V. 5 V. 0 V. (2 + √3/2)V. 2 V. 5 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The three resistors R1, R2 and R3 have the following ratings: R1 = 25Ω ± 4%, R2 = 65 Ω ± 4%; R3 =45 Ω ± 4%. If the resistance are connected in series, then limiting error produced in equivalent resistance is 1% 3% 2% 4% 1% 3% 2% 4% ANSWER DOWNLOAD EXAMIANS APP
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