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Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise : Hydraulics and Fluid Mechanics - Section 2
6.
The discharge over a rectangular weir, considering the velocity of approach, is (where H1 = Total height of water above the weir = H + Ha H = Height of water, over the crest of the weir, and Ha = Height of water, due to velocity of approach)
Cd x L2g [H1 - Ha]
Cd x L2g [H13/2 - Ha3/2]
Cd x L2g [H12 - Ha2]
Cd x L2g [H15/2 - Ha5/2]
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
A flow in which __________ force is dominating over the viscosity is called turbulent flow.
elastic
surface tension
viscous
inertia
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
If an incompressible liquid is continuously flowing through a pipe, the quantity of liquid passing per second is different at different sections.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The atmospheric pressure at sea level is
103 kN/m2
10.3 m of water
760 mm of mercury
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
When the pressure intensity at a point is less than the local atmospheric pressure, then the difference of these two pressures is called vacuum pressure.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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