Civil and Environmental Engineering Answers

Give atleast 5 interesting research topic. The research should be suitable for two statistical test. The research should be about Civil and Environmental Engineering

Calculate the reactions of the following statically determinate multispan beam, and
depict its internal force diagrams.

The two pipes A and B are at the same elevation. In pipe A, water is present and rises in the
tube to a level 63 in above pipe A. An oil is contained in B.
The inverted U-tube is filled with gas at 12 psi and 800
F. Atmospheric pressure is 15.68 psia.
(a). Calculate the difference in pressure between pipe A and B if the manometer reading is 12 in. Show
the answer in psi.
(b). Calculate the absolute pressure in B in inches of mercury, and feet of oil (s = 0.87)

A rectangular plate 0f 7 ft by 3.5 ft at an angle 450 with the horizontal, and the 7 ft side is
horizontal. Calculate the magnitude of the force on one side of the plate and the depth of its centre
of its pressure when the top of edge is
(a) at free water surface
(b) 1.75 ft below the water surface.

A flow field is determined by u= 8y, v= 4xy, w= 7z. Derive expressions for the x, y and z
components of acceleration. Find the magnitude of the velocity and acceleration at the point (2,4,5)
and at (1,2,4). Specify units in terms of L and T.
Sketch the flow field defined by u=0, v= 4xy, and derive the expression for x and y components of
acceleration. Calculate the acceleration at the point (3,4). Specify units in terms of L and T.

A bearing with 70 mm shaft in a 70.5 mm sleeve 150 mm long, the uniformed clearance space
is filled with SAE 45 lubricating oil at 350C.
Calculate the rate at which heat is generated at the journal bearing when the bearing shaft
rotates at 250 rpm. Show the answer in kN-m/s, J/s and hp.

A cylinder with high rigidity, diameter inside it is 25 mm containing a column of water 650 mm
long. Calculate the column length if a force of 2.5 kN is applied to its end by a frictionless plunger?
Assume there is no leakage.

Discuss the relevance of irrigation to agricultural development.

Distinguish between the categories of irrigation.

Enumerate the requirements for setting up an irrigation system.