Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High frequencies Power frequencies High load on the transformer Low frequencies High frequencies Power frequencies High load on the transformer Low frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For power measurement of three phase circuit by two wattmeter method, when the value of power factor is less than 0.5 lagging One of the wattmeters will read zero Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed Both give the same readings One of the wattmeters will read zero Pressure coil of the wattmeter will become ineffective. One of the wattmeter connections will have to be reversed Both give the same readings ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are inclined at 30o. inclined at 60o. parallel. perpendicular. inclined at 30o. inclined at 60o. parallel. perpendicular. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For measurement of inductance having high value, we should use Any of the listed here Maxwell wein bridge Maxwell's bridge Hay's bridge Any of the listed here Maxwell wein bridge Maxwell's bridge Hay's bridge ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The measurment of very low and very high frequencies is invariably done using a frequency counter in which one of the following? Frequency and period measurment modes, respectively. Period measurment modes only. Period and frequency measurement modes respectively. Frequency measurment modes only. Frequency and period measurment modes, respectively. Period measurment modes only. Period and frequency measurement modes respectively. Frequency measurment modes only. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pressure coil of a wattmeter should be connected on the supply side of the current coil when None of these Load impedance is low Load impedance is high Supply voltage is low None of these Load impedance is low Load impedance is high Supply voltage is low ANSWER DOWNLOAD EXAMIANS APP
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