Measurement and Instrumentation Which of following statement are correct in case of power factor meter? 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. The deflection is proportional to phase angle between field coil and crossed coil. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 200 V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by this instrument is 50 V. What is the limiting error? 4% 2% 5% 3% 4% 2% 5% 3% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be 260 V. 248 V. 250 V. 252 V. 260 V. 248 V. 250 V. 252 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A rectifier type instrument is connected to 100VDC and is operated in the DC measuring module reads 100V 50V 90V 111V 100V 50V 90V 111V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following instruments can be used to measure AC current only? Moving iron ammeter Induction type ammeter Moving iron voltmeter Permanent Magnet Type ammeter Moving iron ammeter Induction type ammeter Moving iron voltmeter Permanent Magnet Type ammeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The measurement of a quantity none of these. is a comparison of an unknown quantity with another quantity. is a comparison of an unknown quantity with standard. is a comparison of an unknown quantity with known quantity. none of these. is a comparison of an unknown quantity with another quantity. is a comparison of an unknown quantity with standard. is a comparison of an unknown quantity with known quantity. ANSWER DOWNLOAD EXAMIANS APP
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