Question
Download Solution PDFWater is flowing through a pipe of 5 cm diameter under a pressure head of 20 m, which is 5 m above the datum line. Find the height of the hydraulic gradient line with respect to the datum.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Hydraulic Gradient Line(H.G.L.):
- The sum of the potential (or elevation) head and the pressure head at any point is called the piezometric head.
- If a line is drawn joining the piezometric levels at various points, the line so obtained is called the Hydraulic Gradient Line.
Calculation:
Given data:
Diameter of pipe (D) = 5 cm
Pressure head (hp) = 20 m
Elevation of pipe from datum (z) = 5 m
Height of hydraulic gradient line =?
Height of hydraulic gradient line \(=Z+{P\over ρ g}=Z+h_{p}\)
Where Z = elevation head
P = Pressure
ρ = Density of fluid
g = Acceleration due to gravity
hp = Pressure head
Height of hydraulic gradient line = 5 + 20 = 25 m
Height of hydraulic gradient line = 25 m
Last updated on Jul 1, 2025
-> SSC JE notification 2025 for Civil Engineering has been released on June 30.
-> Candidates can fill the SSC JE CE application from June 30 to July 21.
-> SSC JE Civil Engineering written exam (CBT-1) will be conducted on 21st to 31st October.
-> 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.
-> The Staff Selection Commission conducts the SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.