Measurement and Instrumentation In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is 0.4 mm/Ω 5.0 mm/Ω 0.8 mm/Ω 2.5 mm/Ω 0.4 mm/Ω 5.0 mm/Ω 0.8 mm/Ω 2.5 mm/Ω ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken From a battery Any of the above From a source which is not the same as the unknown voltage From the same source as the unknown voltage From a battery Any of the above From a source which is not the same as the unknown voltage From the same source as the unknown voltage ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a single phase energy meter, braking torque is provided by Fluid friction Air friction Permanent magnet None of the listed here Fluid friction Air friction Permanent magnet None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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 An current of is measured with a thermocouple, 5 A full scale meter. What is the meter reading? 5 A. 3 A. 2+3√2 A. 2 A. 5 A. 3 A. 2+3√2 A. 2 A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The disc of an instrument using eddy current damping should be of Conducting and non magnetic material None of the listed here Conducting and magnetic material Non conducting and magnetic material Conducting and non magnetic material None of the listed here Conducting and magnetic material Non conducting and magnetic material ANSWER DOWNLOAD EXAMIANS APP
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