Question
Download Solution PDFThe value of the coefficient of velocity for sharp-edged orifices is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Coefficient of velocity:
It is defined as the ratio of the actual velocity of the jet at vena contracta V to the theoretical velocity Vth.
Experimentally it is determined by using the following relation
\({C_V} = \sqrt {\frac{{{x^2}}}{{4\;y\;h}}} \)
where x = Horizontal distance
y = vertical distance
h = constant head water
Generally, the value of Cv varies from 0.95 to .99 for different orifices depending upon their size, shape, head etc.
for sharp edged orifices the value of Cv is 0.98.
| Types of tubes | Cc | Cv |
| Rounded | 1 | 0.98 |
| Sharp-edged | 0.62 | 0.98 |
| Short tube | 1 | 0.8 |
| Borda tube | 0.52 | 0.98 |
Last updated on May 28, 2025
-> SSC JE ME Notification 2025 will be released on June 30.
-> The SSC JE Mechanical engineering application form will be available from June 30 to July 21.
-> SSC JE 2025 CBT 1 exam for Mechanical Engineering will be conducted from October 2 to 31.
-> SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.
-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.
-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.
-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.