Consider a rectangular channel with a variable width b and horizontal channel bottom, a) Obtain the equation of water surface profile (dy/dx) as function of Froude number and channel width change (db/dx) in a channel transition assuming that over a short distance x, the energy losses can be neglected. b) Using the equation you have obtained, draw the water surface profile if flow is subcritical and if there is an enlargement in channel cross section b in downstream section (2) and show your results on the graph of specific energy curve (E versus y curve).

You are considering buying a vehicle to use in your daily errands. A used vehicle will cost EGP85,000 and have a EGP20,000 market (salvage) value after a 5 years useful life, and consumes 2 liters of fuel per 10 km travelled. A new vehicle will cost EGP130,000 and have a EGP40,000 market value after a 6 years useful life. The new vehicle is expected to reduce fuel consumption compared with the used vehicle. You expect to drive the vehicle 18,000 km per year. Fuel costs EGP8/liter and the interest rate is 15% per year.

a) If the new vehicle is expected to reduce fuel consumption by 10% compared with

the used vehicle, which vehicle should you buy?

b) What is the percent reduction in the fuel consumption by the new vehicle that

would reverse the decision you made in part (a)?

c) Determine the percentage change in the salvage value of the new vehicle that

would reverse the decision made in part(a)?

1. Give five (5) reasons why a developer would embark on an Infrastructure development project. [10]
2. State and briefly explain the different stages of a complete Infrastructure development life cycle. [20]
3. What are the Quantity Surveying roles and responsibilities at each stage in 2 above? [10]
4. What would be the roles and responsibilities of the Civil/Structural Engineer if appointed as
Engineer and Project Manager for a road development project?

thesis of capstone proposal : best topic for thesis related to structural engineering

thesis or capstone proposal ***

Lifting is a manual or mechanical handling process of raising a load above its level for the purpose of changing its location and improper lifting causes accidents in oil and gas industry. In order to avoid the accidents how proper manual lifting (4marks) is done if not done what happens (1mark).

Explain the various types of excavation then analyse the purposes of using each type.

Write in details about cavity walls and explain with drawing the spaces and location of wall ties.

Design changes are identified to be one of the major causes of project delays and cost overruns. As a construction project manager, what would you do to avoid or minimize the impact of this problem?

A singly reinforced beam 47.2 cm × 28.3 cm, is provided with 5 bar of each diameter 2.2 cm . determine:
(1) Percentage of excess steel used
(2) moment of resistance
(3)actual stress develop in steel and concrete
(4) maximum allowance central load that can be put if it is carrying a uniformly distributed load of 850kg/m over a simply supported length of 3.2m.

A siphon consisting of a pipe of 15cm diameter is used to empty kerosene oil (s = 0.8) from a tank A.
The siphon discharges to the atmosphere at an elevation of 1m. the oil surface in the tank is at ana
elevation of 4m. The centerline of the siphon pipe at its highest point C is at an elevation of 5.5m. The
losses in the pipe are 0.5m up to the summit and 1.2m from the summit to the outlet. Estimate:
i. The discharge in the pipe
ii. Pressure at point C
iii. Length of the pipe given f = 0.0035

4. Assume that ball A of weight W is released from rest in the position ?ଵ ൌ 60° and swings downward to where it strikes the at-rest ball B of weight 3W . Assuming an elastic impact, calculate

(a) the angle ?ଶ through which the lager pendulum (Pendulum B) will swing after the impact.

(b) The total energy loss just after impact The length of the rods for both pendulum A and B are equal to ?.

You may assume W =196.2 N and ? = 1 m for numerical calculations.

1) Humans have populated regions in which the geomorphic settings pose hazards for construction and engineering projects. Discuss the extent to which the potential hazards are caused by intrinsic versus extrinsic thresholds. Build your discussion around comparing and contrasting humid, semi- arid, glaciated, and periglacial environments.