Measurement and Instrumentation A DC potentiometer is the best means available for the measurement of DC voltage because It is possible to standardize before a measurement is undertaken. It is based on null balance technique. None of above. The precision in measurment is independent of the type of the defector used. It is possible to standardize before a measurement is undertaken. It is based on null balance technique. None of above. The precision in measurment is independent of the type of the defector used. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Wien bridge is useful for measuring High frequency Low frequency Medium frequency Very high frequency High frequency Low frequency Medium frequency Very high frequency ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A first order instrument is characterized by Static sensitivity and damping coefficient Static sensitivity, damping coefficient and natural frequency of oscillations Time constant only Static sensitivity and time constant Static sensitivity and damping coefficient Static sensitivity, damping coefficient and natural frequency of oscillations Time constant only Static sensitivity and time constant 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. Errorneous standardisation. Stray magnetic fields. Stray thermal emfs. Ripples of the DC supply. Errorneous standardisation. Stray magnetic fields. Stray thermal emfs. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A multirange instrument has Variable turns of coil Multiple shunt or series resistance inside the meter Multicoil arrangement Multirange meters inside the measurement system Variable turns of coil Multiple shunt or series resistance inside the meter Multicoil arrangement Multirange meters inside the measurement system 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 thermocouple voltmeter Small range moving coil voltmeter C. potentiometer None of these Small range thermocouple voltmeter Small range moving coil voltmeter C. potentiometer None of these ANSWER DOWNLOAD EXAMIANS APP
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