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Mechanical Engineering - Steam Nozzles and Turbines - Discussion

Discussion Forum : Steam Nozzles and Turbines - Section 1 (Q.No. 1)
Steam Nozzles and Turbines
1.
A nozzle is said to be a convergent nozzle
when the cross-section of the nozzle increases continuously from entrance to exit
when the cross-section of the nozzle decreases continuously from entrance to exit
when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 1 of 2.
Chakri said:   3 years ago
If pressure decreases then what about the velocity in the convergent nozzle?
(1)
IND said:   8 years ago
Convergent Nozzle means decrease in cross-section gradually from entrance to exit.

Which is increase in cross section gradually from entrance to exit is called Divergent Nozzle.
(1)
SURYA said:   8 years ago
Convergence means gradually decrease area of flow line. That means answer should be B.
Imroz alam said:   2 years ago
Well said thanks @Imroz Alam.
Vivek said:   5 years ago
Well said, Thanks @Ssaikumar.
Kamlesh said:   5 years ago
Well said, Thanks @Saikumar.
Audut Hattale said:   5 years ago
Convergent Nozzle means decrease in cross-section gradually from entrance to exit.
Srinivasan said:   7 years ago
You explanation is very correct & good @Saikumar.
Arun said:   7 years ago
The area increase then the pressure decrease.
Salman said:   1 decade ago
Convergent as name implies decrease in size mainly by cross section So, Answer is B. This shape is mainly used to decrease pressure and conversely increasing velocity.
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