Measurement and Instrumentation In induction type ammeter, _____ damping is provided. Fluid friction Eaddy current None of the listed here Air friction Fluid friction Eaddy current None of the listed here Air friction ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ±0.5% ±3.5% ± 1.5% ± 3.0% ±0.5% ±3.5% ± 1.5% ± 3.0% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wattmeter reads 30.34 W. The absolute error in the measurement is - 2.22 W. What is the true value of power? 28.12 W. 32.56 W . None of these 25.45 W. 28.12 W. 32.56 W . None of these 25.45 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is 85.4o. 4.6o. 94.6o. 175.4o. 85.4o. 4.6o. 94.6o. 175.4o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure ac as well as dc power, we use Dynamometer wattmeter Sometimes induction and sometimes dynamometer wattmeter None of the listed here Induction wattmeter Dynamometer wattmeter Sometimes induction and sometimes dynamometer wattmeter None of the listed here Induction wattmeter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of an energy meter is 1500 rev/kWh, the disc makes 3000 revolution in a given time. The energy consumed is 2 kWh 3 kWh 4 kWh 1 kWh 2 kWh 3 kWh 4 kWh 1 kWh ANSWER DOWNLOAD EXAMIANS APP
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