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Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise : Hydraulics and Fluid Mechanics - Section 7
41.
A notch is, usually, made of a metallic plate.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
A channel is said to be of most economical cross-section, if
it gives maximum discharge for a given cross-sectional area and bed slope
it has minimum wetted perimeter
it involves lesser excavation for the designed amount of discharge
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The top of the weir over which the water flows is known as
sill or crest
nappe or vein
orifice
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called
Pascal's law
Archimede's principle
D-Alembert's principle
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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