Measurement and Instrumentation Instrument transformers are Both current and potential transformers Pottential transformers Current transformers Power transformers Both current and potential transformers Pottential transformers Current transformers Power transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The error of an instrument is normally given as a percentage of Full-scale value Mean value Rms value Measured value Full-scale value Mean value Rms value Measured value 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 ? ± 3.0% ± 1.5% ±3.5% ±0.5% ± 3.0% ± 1.5% ±3.5% ±0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of Resistance of connecting leads. All of above. Thermoelectric emfs. Contact resistance. Resistance of connecting leads. All of above. Thermoelectric emfs. Contact resistance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An analog ammeter is a controlling instrument. an absolute instrument. a recording instrument. an indicating instrument. a controlling instrument. an absolute instrument. a recording instrument. an indicating instrument. 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 94.6o. 175.4o. 85.4o. 4.6o. 94.6o. 175.4o. 85.4o. 4.6o. ANSWER DOWNLOAD EXAMIANS APP
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