Measurement and Instrumentation A galvanometer has Spring coil damping Eddy current damping Air friction damping Fluid friction damping Spring coil damping Eddy current damping Air friction damping Fluid friction damping ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Ripples of the DC supply. Stray magnetic fields. Errorneous standardisation. Stray thermal emfs. Ripples of the DC supply. Stray magnetic fields. Errorneous standardisation. Stray thermal emfs. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Attraction and repulsion type instruments are the two different types of which instrument ? Dynamo-meter type. Induction type. Multipliers. Moving iron type. Dynamo-meter type. Induction type. Multipliers. Moving iron type. 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 parallel. inclined at 30o. inclined at 60o. perpendicular. parallel. inclined at 30o. inclined at 60o. perpendicular. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If the instrument is to have a wide range, the instrument should have Linear scale Square-law scale Exponential scale Logarithmic scale Linear scale Square-law scale Exponential scale Logarithmic scale ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The rectifier instrument is not free from Frequency error Wave shape error All of the listed here Temperature error Frequency error Wave shape error All of the listed here Temperature error ANSWER DOWNLOAD EXAMIANS APP
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