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 2% 3% 1% 4% 2% 3% 1% 4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High frequencies High load on the transformer Low frequencies Power frequencies High frequencies High load on the transformer Low frequencies Power frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 100W 50W 150W 200W 100W 50W 150W 200W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current ‘I’ through a resistance R is measures with the following uncertainties I = 4 A ± 0.5%, R = 100Ω±0.2%. If power is computed from these two measured quantities, the uncertainty in the power computed will be 0.5% 1% 1.5% 1.2% 0.5% 1% 1.5% 1.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms The bridge is balanced for some specified value of R1, R2, R3. The bridge can not be balanced. The bridge is balanced for some specified value of frequency. The bridge can be balanced. The bridge is balanced for some specified value of R1, R2, R3. The bridge can not be balanced. The bridge is balanced for some specified value of frequency. The bridge can be balanced. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is 94.6o. 85.4o. 175.4o. 4.6o. 94.6o. 85.4o. 175.4o. 4.6o. ANSWER DOWNLOAD EXAMIANS APP
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