Computer · Fluid Mechanics
A compound pipe consisting of three pipes of diameters d1, d2, and d3 and lengths l1, l2, and l3 respectively, is to be replaced by an equivalent pipe of uniform diameter d and total length l = l1 + l2 + l3. The size of the equivalent pipe is given by which of the following relations?
- 1ld5 = l1d15 + l2d25 + l3d35✓
- 2ld4 = l1d14 + l2d24 + l3d34
- 3ld2 = l1d12 + l2d22 + l3d32
- 4ld3 = l1d13 + l2d23 + l3d33
Correct answer
ld5 = l1d15 + l2d25 + l3d35
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