Measurement and Instrumentation Magnetic deflection is inversely proportional to (Voltage)-0.5. (Voltage)2. Voltage. (Voltage)1.5. (Voltage)-0.5. (Voltage)2. Voltage. (Voltage)1.5. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Deflection method direct measurements are most widely used as these are most simple and least time consuming. least time consuming. most simple. most accurate. most simple and least time consuming. least time consuming. most simple. most accurate. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 0.73 0.84 0.65 1 0.73 0.84 0.65 1 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? 1% 5% 3.33% 2% 1% 5% 3.33% 2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A meter has a full-scale deflection of 90o at a current of 1 A. The response of the meter is square law. Assuming spring control, the current for a deflection at 45o will be 0.67 A. 0.50 A. 0.25 A. 0.70 A. 0.67 A. 0.50 A. 0.25 A. 0.70 A. 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 correct explanation of A C. A is true R is false. A is false R is true. 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 true R is false. A is false R is true. Both A and R is true and R is not correct explanation of A. ANSWER DOWNLOAD EXAMIANS APP
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