Measurement and Instrumentation Instrument transformers are Power transformers Current transformers Both current and potential transformers Pottential transformers Power transformers Current transformers Both current and potential transformers Pottential transformers 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 ? ±3.5% ± 1.5% ± 3.0% ±0.5% ±3.5% ± 1.5% ± 3.0% ±0.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices should be used for accurate measurement of low D.C. voltage? Small range moving coil voltmeter Small range thermocouple voltmeter C. potentiometer None of these Small range moving coil voltmeter Small range thermocouple voltmeter C. potentiometer None of these 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 175.4o. 94.6o. 85.4o. 4.6o. 175.4o. 94.6o. 85.4o. 4.6o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which amplifier in used in an electronic amplifier? Butter amplifer. Wideband amplifier. Power amplifier. Differential amplifier. Butter amplifer. Wideband amplifier. Power amplifier. Differential amplifier. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measurement on high voltage capacitors, the suitable bridge is Schering bridge Any of the listed here Wein bridge Modified De santy's bridge Schering bridge Any of the listed here Wein bridge Modified De santy's bridge ANSWER DOWNLOAD EXAMIANS APP
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