Measurement and Instrumentation The spring material used in a spring control device should have the following property. Should have low specific resistance All of the listed here Most be of low temperature co-efficient Should non magnetic Should have low specific resistance All of the listed here Most be of low temperature co-efficient Should non magnetic 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 Potentiometer method of DC voltage measurement is more accurate than direct measurement using a voltmeter because It uses centre zero galvanometer instead of voltmeter. It loads the circuit to maximum extent. It does not load the circuit at all. It loads the circuit moderately. It uses centre zero galvanometer instead of voltmeter. It loads the circuit to maximum extent. It does not load the circuit at all. It loads the circuit moderately. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 200 V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by this instrument is 50 V. What is the limiting error? 2% 4% 3% 5% 2% 4% 3% 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The repeat accuracy of an instrument can be judged from its Standard deviation of error Static error Dynamic error Linearity error Standard deviation of error Static error Dynamic error Linearity error ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be 0.4% less. 0.4 more. 0.2% more. 0.2% less. 0.4% less. 0.4 more. 0.2% more. 0.2% less. ANSWER DOWNLOAD EXAMIANS APP
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