Measurement and Instrumentation In a moving iron meter, the deflecting torque is proportional to Square of the current through the coil Current through the coil Sine of the measurand Squareroot of the measurand Square of the current through the coil Current through the coil Sine of the measurand Squareroot of the measurand ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of Thermoelectric emfs. Contact resistance. Resistance of connecting leads. All of above. Thermoelectric emfs. Contact resistance. Resistance of connecting leads. All of above. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A null type instrument as compared to a deflected type instrument has a higher accuracy. All of these a faster response. a lower sensitivity. a higher accuracy. All of these a faster response. a lower sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the name of physical quantities which are independent of each other? None of these Derived quantity Fundamental quantity Numerical quantity None of these Derived quantity Fundamental quantity Numerical quantity ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following statement are correct in case of power factor meter? The deflection is proportional to phase angle between field coil and crossed coil. Both B and C. It consist of two coils mounted at right angles to each other. The restoring torque is provided by a controlling torque. The deflection is proportional to phase angle between field coil and crossed coil. Both B and C. It consist of two coils mounted at right angles to each other. The restoring torque is provided by a controlling torque. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V? 2% 3.33% 1% 5% 2% 3.33% 1% 5% ANSWER DOWNLOAD EXAMIANS APP
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