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ME301 Final Exam - Measurement & Experimentation Laboratory
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ME301 Final Exam - Measurement & Experimentation Laboratory
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25 Questions

1. A 16 bit ADC may have ____ unique output conditions.
2. A strain gauge increases resistance by 0.093 Ohm/cm of strain. An increase in resistance of 0.012 Ohms corresponds to a strain of _____.
3. A clock accurate to within one second per year has a possible drift of approximately on part in:
4. An important disadvantage of voltage signals is:
5. A current source __________________.
6. A force of 1 Newton is approximately equal to:
7. A simple way to filter out high frequencies is to place _________________.
8. A sensor displays the following data as a function of time (s) (reading, time): (15, 2), (18,5), (32,10), (41,15), (53,25), (65,38). Plot the data.
Extrapolate to estimate the reading at t=0.
9. A typical incandescent light bulb consumes 0.1kW. How many such bulbs can a 400 MW source power?
10. The fastest chemical reactions can take place on time scales of ___.
11. A mass of 60 lbm at the end of a yard-long pipe accelerated by earth's gravity orthogonal to the pipe pivot exerts a torque of _____ at the pivot at the other end of the pipe.
12. The depth of liquid in a container increases approximately linearly with time. The following measurements were taken for (t(s), d(depth cm)): (0,0), (10, 1), (30, 5), (60, 12), (120, 30), (200, 50). Find the average rate of increase in cm/s from the slope of a least-squares fit line.
13. A transformer permits the conversion of __________.
14. Three resistors (R1, R2, R3) in series present a total resistance of:
15. Aliasing in signal digitization occurs when _____________.
16. A column of vegetable oil 33 ft high exerts a pressure of:
17. A pressure gauge reads 112 torr gauge at sea level. The total pressure is approximately ______.
18. Equipment may be machined to tolerances approaching ____.
19. A 12 bit ADC may have _____ unique output conditions.
20. A simple way to filter out low frequencies is to place _________________.
21. Alternating Current _________________.
22. The nomenclature 'live zero' indicates ________.
23. A temperature probe provides the following data as a function of time (T(C), t(s)): (99, 2.0), (95, 11.0), (91,13.5), (85,17.0), (78,41), (69, 45), (46, 68), (49,112). Plot the data. You may use a spreadsheet or other data analysis system. Interpolate to find the temperature at 60s.
24. Molecular dimensions are on the order of ____.
25. A torque of 25 lb-ft is equivalent to: