Measurement and Instrumentation The EMF of Weston standard cell is measured using Moving- iron meter Potentiometer Moving-coil meter Digital Volt meter Moving- iron meter Potentiometer Moving-coil meter Digital Volt meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 100W 150W 50W 200W 100W 150W 50W 200W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Dynamic errors are caused by environmental error human error observational error instrument not responding fast environmental error human error observational error instrument not responding fast ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In which of the transformer is the secondary nearly short circuited under normal operating condition? PT. Power transformer. Distribution transformer. CT. PT. Power transformer. Distribution transformer. CT. 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 Both A and R is true and R is not correct explanation of A. Both A and R is true and R is correct explanation of A C. A is false R is true. A is true R is false. Both A and R is true and R is not correct explanation of A. Both A and R is true and R is correct explanation of A C. A is false R is true. A is true R is false. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The measurement of a quantity is a comparison of an unknown quantity with another quantity. is a comparison of an unknown quantity with standard. none of these. is a comparison of an unknown quantity with known quantity. is a comparison of an unknown quantity with another quantity. is a comparison of an unknown quantity with standard. none of these. is a comparison of an unknown quantity with known quantity. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS