Measurement and Instrumentation A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is Zero. 2V. 2√2V. √2V. Zero. 2V. 2√2V. √2V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The material of the shunt should have _______ temperature co-efficient of resistance. Negative Negligible Positive None of the listed here Negative Negligible Positive None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving iron meter, the deflecting torque is proportional to Squareroot of the measurand Sine of the measurand Current through the coil Square of the current through the coil Squareroot of the measurand Sine of the measurand Current through the coil Square of the current through the coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Attraction and repulsion type instruments are the two different types of which instrument ? Dynamo-meter type. Moving iron type. Multipliers. Induction type. Dynamo-meter type. Moving iron type. Multipliers. Induction type. 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 ± 2.4% ± 3.4% ± 1% ± 1.4% ± 2.4% ± 3.4% ± 1% ± 1.4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A PMMC instrument can be used as flux meter By eliminating the control springs By using a high series resistance By making control springs of large moment of inertia By using a low resistance shunt By eliminating the control springs By using a high series resistance By making control springs of large moment of inertia By using a low resistance shunt ANSWER DOWNLOAD EXAMIANS APP
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