SSC JE Mechanical Engineering 2014 Set 2 Paper

Question : 124 of 200

Marks: +1, -0

The length of a pipe is 1000 m and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is :

Solution:

For equivalent pipe

L/{D5}=L_1/{D_1 5}+L_2/{D_2 5}+L_3/{D_3 5}+....

L/(0.40)^5=1000/(.20)^5

L =32000 \m

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