Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 3 (Q.No. 1)
1.
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.
equal to
one-fourth
one-third
one-half
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 1 of 2.

Vinay BEL said:   5 years ago
For external mouthpice vena contracta occurs at D/4.

For internal mouthpice vena contracta occurs at D/2.
(5)

Jai maurya said:   7 years ago
For external mouthpice vena contracta occurs at D/4.

For internal mouthpice vena contracta occurs at D/2.
(3)

Ram said:   7 years ago
D is the correct answer.
(2)

Mahesh Krishnan said:   7 years ago
For orifices, vena contracta occurs at 0.5D.

For mouthpiece it is D/4.
(2)

SUJEET KUMAR PRAJAPATI said:   7 years ago
Option D is the correct answer.
(1)

Muhammad saad said:   1 decade ago
Vena contracta is the point in a fluid stream where the diameter of the stream is the least, and fluid velocity is at its maximum.

Apoorva gupta said:   9 years ago
Venna is point of minimum area of stream flow, which occurs after throat due to sudden compaction and hence its diameter is less than orifice diameter.

Sanjeev said:   8 years ago
The distance of vena-contracta from the orifice is half the diameter of the orifice.

So, The option (D) should be correct.

.

Rajneesh singraul said:   7 years ago
D is correct because this vena contracta occurs at a distance of half the diameter of orifice.

Pratik said:   6 years ago
It's d/2.


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