Fluid Mechanics Sheet 9
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1) Question.
If the speed of pressure wave is and pipe length is L, rapid closure occurs when time of closure is -
Answer. -
2) Question.
The speed of a pressure wave through a pipe depends upon -
Answer. -
3) Question.
A valve is suddenly closed in a water main in which the velocity is 1 m/sec and velocity of pressure wave is 981 m/sec. The inertia head at the valve will be -
Answer. -
4) Question.
In series- pipe problems -
Answer. -
5) Question.
Two pipe systems are said to be equivalent when -
Answer.Two-pipe systems are said to be equivalent when same head loss produces the same discharge in both systems
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6) Question.
The hydraulic grade line is -
Answer. -
7) Question.
The maximum thickness of boundary layer in a pipe of radius r is -
Answer. -
8) Question.
The wake -
Answer. -
9) Question.
The losses are more in -
Answer. -
10) Question.
The velocity distribution for laminar flow through a circular tube -
Answer.