Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 12.8 rpm. 18.2 rpm. 21.1 rpm. 16.02 rpm. 12.8 rpm. 18.2 rpm. 21.1 rpm. 16.02 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which meter is suitable for the measurement of 10mV at 50MHz? Moving coil voltmeter CRO Moving iron voltmeter VTVM Moving coil voltmeter CRO Moving iron voltmeter VTVM ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High load on the transformer Power frequencies High frequencies Low frequencies High load on the transformer Power frequencies High frequencies Low frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation ______ instruments are most sensitive. Permanent magnet moving coil Dynamometer Moving iron Hot wire Permanent magnet moving coil Dynamometer Moving iron Hot wire ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Exponential scale Linear scale Square-law scale Logarithmic scale Exponential scale Linear scale Square-law scale Logarithmic scale ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Comparison methods are used because they are expensive. because they take least time in measurement. because they are most simple. when a high accuracy of measurement is required. because they are expensive. because they take least time in measurement. because they are most simple. when a high accuracy of measurement is required. ANSWER DOWNLOAD EXAMIANS APP
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