Measurement and Instrumentation A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is 1.34 V. 1.5 V. 1 V. 1.7 V. 1.34 V. 1.5 V. 1 V. 1.7 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? An ammeter should have a very low resitance. A shunt should have a very low resistance. Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. An ammeter should have a very low resitance. A shunt should have a very low resistance. Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. 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? 150W 50W 100W 200W 150W 50W 100W 200W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The disc of an instrument using eddy current damping should be of Conducting and magnetic material Non conducting and magnetic material Conducting and non magnetic material None of the listed here Conducting and magnetic material Non conducting and magnetic material Conducting and non magnetic material None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The two pressure coils of a single phase power factor meter have None of these The same dimension but different number of turns The same number of turns but different dimensions The same dimensions and the same number of turns None of these The same dimension but different number of turns The same number of turns but different dimensions The same dimensions and the same number of turns ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the name of physical quantities which are independent of each other? Numerical quantity None of these Fundamental quantity Derived quantity Numerical quantity None of these Fundamental quantity Derived quantity ANSWER DOWNLOAD EXAMIANS APP
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