Please answer all true and false questions to receive full rating. True or False

Question

Please answer all true and false questions to receive full rating.

True or False (2 points each) 1) RTDs generally have inferior spatial resolution as compared to thermocouples. 2) Resistance of the thermistor we used in our lab decrease with increasing 3) As for the strain gage, the lead wire resistance of the RTD does not affect the voltage output. 4) RTDs are generally more accurate than thermooouples and thermistars. 5) The static pressure is the largest pressure in the now field. 6) The average velocity in the circular tunnel is the arithmetic mean of the velocities we measured across the transverse af tunne 7) The op AMP circuit we built in the frequency lab is an inverting oP-AMP 8) The amplifier gain, g, is generaly the same as G. the gain of the amplifier circuit using the OP-AMP as a 9) The time constant for decay of the vibrating beam was equal to the inverse of the product of the damping ratio and the natural frequency 10) A ballast circuit was buit for the thermistor to ampify tha output signal

Explanation / Answer

1. Spatial Resolution is the smallest distance between the two independent measurements . So, RTD will have inferior spatial resolution . TRUE

2. Resistance is in negative temperature coefficient will decrease with increase in temperature and increases with increase of temperature in positive temperature coefficient. But in major cases , during experiments resistance will decrease in raise of temperature

3. True

4. True , RTDs will provide stanndard results for multiple trials compared to thermocouples and thermistors

5. True , basing on bernoulli law

6. True , Vavg = Vi + Vf / 2

7. True

8.True

9. True , ? =1 / ?n x ? (damping ratio)

10. True

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