Measurement and Instrumentation PMMC type instruments normally use Air friction damping Eddy current damping Fluid friction damping None of these Air friction damping Eddy current damping Fluid friction damping None of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A resistance is measured by the voltmeter-ammeter method employing dc excitation and a voltmeter of very high resistance connected directly across the unknown resistance. If the voltmeter and ammeter reading are subject to maximum possible errors of ± 2.4 % and ± 1.0 % respectively, then the magnitude of the maximum possible percentage error in the value of resistance deduced from the measurement is nearly ± 1% ± 2.4% ± 1.4% ± 3.4% ± 1% ± 2.4% ± 1.4% ± 3.4% 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 175.4o. 94.6o. 85.4o. 4.6o. 175.4o. 94.6o. 85.4o. 4.6o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following essential featuresis possessed by an indicating instrument? Controlling device All of the listed here Deflecting device Damping device Controlling device All of the listed here Deflecting device Damping device ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading? 2.03 A. 6.09 A. 5 A. 4.06 A. 2.03 A. 6.09 A. 5 A. 4.06 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? Both B and C. The deflection is proportional to phase angle between field coil and crossed coil. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. Both B and C. The deflection is proportional to phase angle between field coil and crossed coil. The restoring torque is provided by a controlling torque. It consist of two coils mounted at right angles to each other. ANSWER DOWNLOAD EXAMIANS APP
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