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Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise : Hydraulics and Fluid Mechanics - Section 4
31.
The velocity at which the flow changes from laminar flow to turbulent flow is called
critical velocity
velocity of approach
sub-sonic velocity
super-sonic velocity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The discharge through a channel of trapezoidal section is maximum when
width of channel at the top is equal to twice the width at the bottom
depth of channel is equal to the width at the bottom
the sloping side is equal to half the width at the top
the sloping side is equal to the width at the bottom
Answer: Option
Explanation:
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33.
The vacuum pressure is always the negative gauge pressure.
Yes
No
Answer: Option
Explanation:
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34.
The value of coefficient of discharge is __________ the value of coefficient of velocity.
less than
same as
more than
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as
narrow-crested weir
broad-crested weir
Ogee weir
submerged weir
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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