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Question
a) What are the two principle factors influencing the allowable bearing pressure in the design of a specific footing? Are both of these factors equally important? Are both factors likely to be equally relevant for different soils types?
b) The foundation in the Figure As 2 is to support a factory which is to contain some precision machinery. The locations of the rigid footings are given because of an adjacent ramp system for service tunnels. The whole structure, including floor slabs, live and dead loads are to be γ supported on the column, the design load for each column being 1000 KN. The majority of this load will be applied on the installation of the machinery. One item of machinery, and indeed the first to be installed consists of delicate conveyer system which will reach between the columns. It is stated by the manufacturer that this conveyor system will not operate if there is more than 5 (mm) change in level between the ends of the system. Given that the minimum footing size is 2(m) x 2 (m), design the foundation so that the conveyor system experiences continued operation.
Two long pipes convey water between two reservoirs whose water surfaces are at different elevations. One pipe has a diameter twice that of the other; both pipes have the same length and the same value of f.
find the net present worth of the project,and the internal rate of return ,and the annual worth of the project?
The evaporation rate from the surface of a 3,650-acre lake is 100 acre-ft/day. Estimate the depth change in the lake in feet during a 1-year period if the net inflow to the lake is 25 cfs. Is the depth increasing or decreasing
Estimate the energy required to raise the temperature of 2 kg (4.42 lbm) of the following materials from 20°C to 100°C (68°F to 212°F): aluminum, steel, soda-lime glass, and high-density polyethylene.
A 10 ft. boom is acted upon by the 840-lb force. Determine the tension in each cable and the reactionat the ball-and-socket joint at A.
You heat 250 ml of tap water from 10 degree celcius to 100 degree celcius in 2 minutes using a microwave oven operating at 2.5 GHz. a). What is the wavelength of this electromagnetic radiation
A laser range finder consists of a laser and a light receiver. It operates by bouncing a laser pulse off a mirror and measuring the time of flight, the time it takes for the pulse to leave the laser, bounce off the mirror and return to the receive..
Explain how the different physical characteristics and moisture content of soil lead to the different angles of repose, swell, and shrinkage factors. Explain how these factors affect excavation operations and costs.
the 3 kg block is released from rest at A and slides down the smooth parabolic surface. determine the maximum compression of the spring
A weight W somewhere between 1 to 10 tons is randomly placed along a beam of 10m long span. Let X denote the distance from the point of applicatoin of the load to the nearest support.
Determine the horizontal and vertical components of reaction at the pin supports at A and B and indicate direction. Take F1 = 7 KN, F2 = 6 KN, and h = 1 m.
What is the total moment M due to the force F about point O. Assume that moments acting counterclockwise about point O are positive whereas moments acting clockwise are negative.
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