Measurement and Instrumentation A spring-controlled moving iron voltmeter draws a current of 1 mA for full scale value of 100V. If it draws a current of 0.5 mA, the meter reading is 200 V. 50 V. 100 V. 25 V. 200 V. 50 V. 100 V. 25 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Environmental errors Systematic errors Gross errors Random errors Environmental errors Systematic errors Gross errors Random errors ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Ratio of readings of two wattmeter connected to measure power in a balanced 3-phase load is 5:3 and the load is inductive. The power factor at load is 0.6 lag. 0.917 lead. 0.917 lag. 0.6 lead. 0.6 lag. 0.917 lead. 0.917 lag. 0.6 lead. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following essential featuresis possessed by an indicating instrument? Damping device Controlling device Deflecting device All of the listed here Damping device Controlling device Deflecting device All of the listed here 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? 100W 150W 50W 200W 100W 150W 50W 200W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 1% ±3.5% ± 1.5% ± 2.5% ± 1% ±3.5% ± 1.5% ± 2.5% ANSWER DOWNLOAD EXAMIANS APP
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