Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 4 1 2 5 4 1 2 5 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The EMF of Weston standard cell is measured using Digital Volt meter Potentiometer Moving- iron meter Moving-coil meter Digital Volt meter Potentiometer Moving- iron meter Moving-coil meter ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 200W 100W 50W 150W 200W 100W 50W 150W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A variable w is related to three other variables x, y and z as w = xy/z. The variables are measured with meters of accuracy ± 0.5% reading, ± 1% of full scale value and ± 1.5% reading. The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum uncertainty in the measurement of w will be ± 5% ± 8% ± 7% ± 6% ± 5% ± 8% ± 7% ± 6% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In AC circuits, the connection of measuring instruments cause loading effect errors which may effect only the magnitude of the quantity being measured. magnitude, phase and waveform of the quantity being measured. only phase of the quantity being measured. both of above. only the magnitude of the quantity being measured. magnitude, phase and waveform of the quantity being measured. only phase of the quantity being measured. both of above. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Symmetric errors are Observational errors All of the listed here Environment errors Instrument errors Observational errors All of the listed here Environment errors Instrument errors ANSWER DOWNLOAD EXAMIANS APP
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