Measurement and Instrumentation A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is 0.05V 0.25V 0.01V 0.01V 0.05V 0.25V 0.01V 0.01V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Assertion(A): A low power factor wattmeter has special constructional features to ensure accurate measurment. Reason(R): Extension of wattmeter range in DC circuit can be easily done by using current and potential transformer A is true R is false. Both A and R is true and R is correct explanation of A C. Both A and R is true and R is not correct explanation of A. A is false R is true. A is true R is false. Both A and R is true and R is correct explanation of A C. Both A and R is true and R is not correct explanation of A. A is false R is true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 1% ±3.5% ± 1.5% ± 2.5% ± 1% ±3.5% ± 1.5% ± 2.5% 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 the same source as the unknown voltage From a source which is not the same as the unknown voltage Any of the above From a battery From the same source as the unknown voltage From a source which is not the same as the unknown voltage Any of the above From a battery ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The disc of an instrument using eddy current damping should be of Conducting and non magnetic material Non conducting and magnetic material None of the listed here Conducting and magnetic material Conducting and non magnetic material Non conducting and magnetic material None of the listed here Conducting and magnetic material ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The given figure shows wein bridge connection for frequency measurement. C and R are variables and gang together. For balanced condition the expression for frequency is f = 1/2πCR when R1 = 3R2. R1 = R2. R1 = R2/2. R1 = 2R2. R1 = 3R2. R1 = R2. R1 = R2/2. R1 = 2R2. ANSWER DOWNLOAD EXAMIANS APP
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