Measurement and Instrumentation A 0 - 250V voltmeter has a guaranteed accuracy of 2% of full scale reading. What is the percentage of error if it measures 150V? 2% 1% 5% 3.33% 2% 1% 5% 3.33% 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? 50W 100W 150W 200W 50W 100W 150W 200W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following are needed both for protection and metering? Energy meter. Instrument transformer. Wattmeters. Power factor meters. Energy meter. Instrument transformer. Wattmeters. Power factor meters. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The core flux in the CT of above question no.6, under the given operating conditions is 450 mWb. 0. 225 mWb. 1000 mWb. 450 mWb. 0. 225 mWb. 1000 mWb. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A Manganin swap resistance is connected in series with a moving coil ammeter consisting of a milli ammeter and a suitable shunt in order to Obtaine large deflecting torque. Reduce the size of the meter. Minimize the effect of temperature variation. Minimize the effect of stray magnetic fields. Obtaine large deflecting torque. Reduce the size of the meter. Minimize the effect of temperature variation. Minimize the effect of stray magnetic fields. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter is a Absolute instrument Recording instrument Integrating instrument Secondary instrument Absolute instrument Recording instrument Integrating instrument Secondary instrument ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS