Measurement and Instrumentation A 150 V moving iron voltmeter of accuracy class 1-0 reads 75 V when used in a circuit under standard condition. The maximum possible percentage error in the reading is 1.5% 2.5% 1% 2% 1.5% 2.5% 1% 2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The difference between the indicated value and the true value of a quantity is Absolute error Gross error Dynamic error Relative error Absolute error Gross error Dynamic error Relative error ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be 0.1 µF. 0.09 µF. 11 µF. 10 µF. 0.1 µF. 0.09 µF. 11 µF. 10 µF. 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 50W 150W 100W 200W 50W 150W 100W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Purely mechanical instrument cannot be used for dynamic measurements because they have high inertia. higher response time. large time constant. All of these high inertia. higher response time. large time constant. All of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For handling greater currents induction watt-meters are used in conjunction with Power transformers Either of the above Current transformers Potential transformers Power transformers Either of the above Current transformers Potential transformers ANSWER DOWNLOAD EXAMIANS APP
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