Which of the following specifications is most critical in making an on-engine determination of turbine shaft wear?
A. Turbine shaft diameter.
B. Turbine shaft length.
C. Turbine shaft radial play.
D. Thrust bearing inner diameter.
Answer: C
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The Indian chief who fought for the British in New York and Pennsylvania was
A. Seneca. B. Pontiac. C. Joseph Brant. D. King Philip. E. Cowpens.
The Beer-Lambert law relates the absorbance A of a solution to the concentration C of a species in solution by A = MLC, where L is the path length and M is the molar absorption coefficient. Assume that C = 1.25 ± 0.03 
L = 1.2 ± 0.1 cm, and A = 1.30 ±0.05.
a. Estimate M and find the uncertainty in the estimate.
b. Which would provide a greater reduction in the uncertainty in M: reducing the uncertainty in C to 0.01 
reducing the uncertainty in L to 0.05 cm, or reducing the uncertainty in A to 0.01?
Fill in the blank(s) with the appropriate word(s).
OSHA defines hot work as welding, cutting, chipping, and the use of tools that cause sparks.