Measurement and Instrumentation Potentiometer method of DC voltage measurement is more accurate than direct measurement using a voltmeter because It does not load the circuit at all. It uses centre zero galvanometer instead of voltmeter. It loads the circuit moderately. It loads the circuit to maximum extent. It does not load the circuit at all. It uses centre zero galvanometer instead of voltmeter. It loads the circuit moderately. It loads the circuit to maximum extent. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows a circle. sinisoidal. an ellipse. a straight line. a circle. sinisoidal. an ellipse. a straight line. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which one of the following meters has maximum loading effect on the circuit under measurement ? 10 MΩ/volt 1 MΩ/volt 100 Ω/volt 1000 Ω/volt 10 MΩ/volt 1 MΩ/volt 100 Ω/volt 1000 Ω/volt 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 Load impedance is low Load impedance is high None of these Supply voltage is low Load impedance is low Load impedance is high None of these Supply voltage is low ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which instrument has identical calibration for ac as well as dc values? Moving iron type Hot wire type Moving coil type Induction type Moving iron type Hot wire type Moving coil type Induction type ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A multirange instrument has Multicoil arrangement Multiple shunt or series resistance inside the meter Multirange meters inside the measurement system Variable turns of coil Multicoil arrangement Multiple shunt or series resistance inside the meter Multirange meters inside the measurement system Variable turns of coil ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS