Engineering :: Hydraulics and Fluid Mechanics
231.
In a venturiflume, the flow takes place at
A.
atmospheric pressure
B.
gauge pressure
C.
absolute pressure
D.
none of these
Answer: Option A
Explanation:
232.
A venturiflume is a flumed structure constructed across a channel by restricting its width.
Answer: Option A
Explanation:
233.
A structure whose width is
A.
less than
B.
more than
Answer: Option A
Explanation:
234.
A venturiflume is used to measure
A.
pressure of liquid
B.
discharge of liquid
C.
pressure difference between two points in a channel
D.
pressure difference between two points in a pipe
Answer: Option B
Explanation:
235.
The coefficient of venturiflume, generally lies between
A.
0.3 to 0.45
B.
0.50 to 0.75
C.
0.75 to 0.95
D.
0.95 to 1.0
Answer: Option D
Explanation:
236.
When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as
A.
steady flow
B.
turbulent flow
C.
vortex flow
D.
uniform flow
Answer: Option C
Explanation:
237.
The rise of liquid along the walls of a revolving cylinder about the initial level is
A.
same as
B.
less than
C.
more than
Answer: Option A
Explanation:
238.
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure
A.
varies as the square of the radial distance
B.
increases linearly as its radial distance
C.
increases as the square of the radial distance
D.
decreases as the square of the radial distance
Answer: Option A
Explanation:
239.
When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of
A.
a triangle
B.
a paraboloid
C.
an ellipse
D.
none of these
Answer: Option B
Explanation:
240.
The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is
A.
directly proportional to (radius)2
B.
inversely proportional to (radius)2
C.
directly proportional to (radius)4
D.
inversely proportional to (radius)4
Answer: Option C
Explanation:
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