Measurement and Instrumentation A megger is usually Moving iron type instrument Electro-static type instrument Hot-wire type instrument Moving coil type instrument Moving iron type instrument Electro-static type instrument Hot-wire type instrument Moving coil type instrument 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. 175.4o. 85.4o. 4.6o. 94.6o. 175.4o. 85.4o. 4.6o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wien bridge is useful for measuring Low frequency High frequency Medium frequency Very high frequency Low frequency High frequency Medium frequency Very high frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Why is a MISC meter not recommended for DC measurement? The error is high due to eddy current effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high The error is high due to hysteresis effect The error is high due to eddy current effect The meter does not respond to DC signals The meter is calibrated for AC and it’s error for DC would be high The error is high due to hysteresis effect ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A multirange instrument has Multicoil arrangement Multirange meters inside the measurement system Variable turns of coil Multiple shunt or series resistance inside the meter Multicoil arrangement Multirange meters inside the measurement system Variable turns of coil Multiple shunt or series resistance inside the meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is found by measuring current flowing and the power fed into the circuit. If the limiting errors in the measurement of power and current are ± 1.5% and ± 1.0% respectively, the limiting error in the measurement of resistance ± 1.5% ± 1% ± 2.5% ± 3.5% ± 1.5% ± 1% ± 2.5% ± 3.5% ANSWER DOWNLOAD EXAMIANS APP
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