Engineering Board Exam Reviewer · Fluid Mechanics · medium
Water flows from a 300 mm pipe into a 150 mm pipe. If the velocity in the larger pipe is 1.5 m/s, what is the velocity in the smaller pipe?
- 3.0 m/s
- 0.75 m/s
- 0.375 m/s
- 6.0 m/s
Answer
D. 6.0 m/s
Solution
V2 = V1(D1/D2)2 = 1.5(300/150)2 = 1.5(4) = 6.0 m/s.
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