Name the roots of the major disciplines in Environmental Engineering and briefly explain its history and development

Q: A 15 m thick rock slab (density: 1800 kg/m3) sits on a failure surface along the side of the valley....

A: Given that, Ysat=10000 N/m2 Yw=1000 kg/m3 ϕ'=39oC'=0 h=2 m z=15 m The objective is to determine the ...

Q: ill in the blank with right word or phrase:- Peak hour factor is the ratio of peak hourly volume to ...

A: 1 . The peak hour factor (PHF) is the hourly volume during the maximum-volume hour of the day divide...

Q: Using Three-Moment Equation, determine the reactions and draw the shear diagram and moment diagram 3...

A: Let the degree of indeterminacy is 4. The theorem of three moments is a relationship among the bendi...

Q: F A El B. C D Ed -d -++d d- Part A - Determining the forces in three members on the right-hand side ...

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Q: For the beam shown below, derive the expressions for V and M and draw the shear force and bending mo...

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Q: shear and bending moment. D 4 in. E В 5 in. G 45 lb 120 lb 9 in.- 6 in. -6 in.→ Fig. P7.52

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Q: What is the Design mode?

A: In terms of construction, the word design mode refers to the process of creating a specific solution...

Q: A rectangular concrete beam 250 mm wide and 600 mm deep is pre-stressed by means of 16 high tensile ...

A: GIVEN,  A rectangular concrete beam of width=250mmDepth=600mmDiameter of wire=7mmEffective pre-stres...

Q: Without writing shear and moment equations, draw shear and moment diagrams for the beams in the foll...

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Q: Bronze A= 400 mm? A = 600 mm? A= 300 mm? ЗР 2P 4P - 4 m -3 m- -5m-

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Q: P B C L-

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Q: 2. A pin connected truss is supported and loaded as shown in the figure. (a) Determine the normal st...

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Q: Mary and Sally are in a foot race. When Mary is 22 m from the finish line, she has a speed of 4 m/s ...

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Q: Question 8 The rigid, horizontal slab is attached to two identical copper rods. There is a gap A = 0...

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Q: Q2) What is the lightest W-shape beam that will support the load shown in Fig. without exceeding a b...

A: To Determine The lightest W-shape beam that will support the load Actual bending stress in the beam.

Q: 5. The population of a certain country is known to increase at a rate proportional fo the number of ...

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Q: Determine the dimensions ofa T-shaped retaining wall for a height of 4 mabove the ground level., The...

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Q: do sand dunes develop in coastal regions and on barrier islands? Through wind-driven saltation of sa...

A: Dunes are formed from sand blown inland from the beach by onshore winds, and trapped by debris or pl...

Q: a. For the beam shown below, determine the slope at point C. E=15,000 MPa, I= 2x10^8 mm4. Use area m...

A: P = 60KN L = 7.2m

Q: 34. Design the following simply supported interior beam using compression reinforcement as nart of t...

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Q: Solve Castigliano's theorem. Show written solution on this problem.

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Q: Two plates, subjected to direct tension, each of 10 mm thickness and having widths of 100 mm and 175...

A: Given data in question  Thickness of plates Width Overlap length Weld stress value Permissible stres...

Q: C. Estimate the primary consolidation settlement; when the bottom sandy layer is replacing with a 5 ...

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Q: Problem 1. Determine Xg and Yg LAST DIGIT OF YOUR STUDENT NO. USE DIMENSION DIMENSION FOR WIDE FOR A...

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Q: A 3.5-cm-diameter pipe leaves a reservoir of surface elevation 80 m and drops to elevation 47 m, whe...

A: Assuming the flow to be ideal. Applying Bernoulli equation at points (1) and (2) the velocity can be...

Q: Two pipes, each 300 m long are connected in series. The flow of water through the pipe is 150 liters...

A: CALCULATIONS OF DIA OF  ANOTHER PIPE CONNECTION IN SERIES IN PIPE FLOW

Q: The simple span of the beam is 6 meters.

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Q: A horizontal channel, 5 m wide, conveys 10 m3 /s at a Froude number of 6.5. A hydraulic jump forms i...

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Q: Given Data: Concrete dimensions Area of steel 625 560 f = 30 MPa ЗHD25 f, = 420 MPa A, = 2457 mm² 65...

A: Given data,  fc = 30 MPa Fy = 420 Mpa As = 2457 mm² To find out the maximum UDL. 

Q: In Fig. 8.32 two tunnels AB and EF are being driven forward until they meet in order to accommodate ...

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Q: anti-vibration shear mount No. 2. The 16 mm by 22 mm by 25 mm rubber blocks shown in Figure No. 2 ar...

A: Volume of the block =16 x 22 x25 mm P= 285N δ=5mm

Q: Discuss the importance of the proper selection of tubing, fitting, and hose installation in a hydrau...

A: It is very important to select the correct tubing, fitting and hose installation in a hydraulic syst...

Q: Design the vertical stem of a T-shaped retaining wall for a height of 3 m above the ground level. Th...

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Q: A truck becomes stuck in the sand at a local beach. To help, a friend takes a 50 ft long rope, ties ...

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Q: A 5 m long simply supported beam carries a superimposed load of 20 kN/m. Design the midspan section ...

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Q: An equipment cost $100,000 with a salvage value of $5,000 at the end of 10 years. Using a sinking fu...

A: Given, Equipment cost, FC=  $100,000 salvage value, V= $5,000 n=10 years,  i = 4% per annum.      

Q: From the given figure below and its properties, calculate the stress at the top where at the fixed e...

A: B = width of beam = 204mm D = Depth of Beam = 483mm Moment Of Inertia of the section = (BD3)/12     ...

Q: 9-30. Determine the slope and displacement at point C. El is constant. Use the method of virtual wor...

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Q: Shear and Moment Diagram: 600 lb/ft 1200 lb - ft 6 ft 4 ft 4 ft Point of Zero Shear: Value of Moment...

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Q: Determine the cracking moment.

A: Cracking moment: - It is the limit of moment beyond which the cracking of concrete occurs.

Q: Determine the force in each member of the truss by Method of joints

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Q: A rectangular river channel 4.6 m wide carries water at a depth of 0.6 m. The slope of the channel i...

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Q: 1. Consider the steady flow of water (p= 1.94 slug/ft') through the device shown below. Areas are: A...

A: Given Data -

Q: The previous, zoom :command is used to Its usefulness is to enlarge the drawing page. This command i...

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Q: Sign false or True and why for the fotlowing- 4-Time mean speed is always less than space mean speed...

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Q: A 12 mm thick plate is connected to two 8 mm thick plates, on either side through a 16 mm diameter p...

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Q: A 12 mm thick plate is connected to two 8 mm thick plates, on either side through a 16 mm diameter p...

A: Given, Thickness of  one plate = 12 mm Thickness of second(two) plates = 8mm Diameter of rivet= 16 m...

Q: A steel flat of rectangular section of size 70 x 6 mm is connected to a gusset plate by three bolts ...

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Q: Question 5 The plastic sheet, 1/2 in. thick, is bonded to the pin-jointed steel frame. Determine the...

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Q: 3. Determine the length of the 2-mm diameter bronze wire which can be twisted through two complete t...

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Material Selection

A wide variety of engineering applications make use of different materials, depending upon their usage. The materials used in civil engineering vary in their properties such as strength, ductility, brittleness, and creep strength. Depending upon the application and external loading conditions, an engineer must make a wise decision for material selection. A wrong decision would fail in its functionality.