If a trenching machine with an average digging speed of 3.6 ft/min is used to make a 1500 feet-long trench, what is the total hours required to finish the job considering 45-min efficiency of the machine?

Q: Some students were performing a hydraulic jump experiment using a wide channel during their…

A: Y1=0.6m Y2=3m To find  the velocities and Froude numbers before and after the jump    the energy…

Q: The difference of water level between the upstream and downstream side of sheet pile of length 9 m…

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Q: Q-Two plates of 50 mm thick and 30 mm thick are to be joined by a lap joint using M12 bolts of grade…

A: Given- Plates thickness =50 cm & 30 cm, Lap joint, M12 bolts of grade 4.6, It is needed to find…

Q: In the two-member assembly shown, find the axial force in rod (1) if P = 14.6 kips. 8 ft P 12 ft B…

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Q: The divergence of the vector field 3xzî + 2xyj — yz² k - is equal to at a point (1,1,1)

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Q: Theory of structure Drow A.F.D S.F.D B.M.D

A: Given:

Q: A body of dimensions 1.5 m x 1.0 mx 2 m, weighs 1962 N in water. What is the weight of the body in…

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Q: 18 in- in 25 in 15 in X Determine the distance in the x-direction (in inches) to the centroid of the…

A: Given: A composite cross section  Required: Centroid of the given cross section in x direction

Q: 1. Determine the force in each member of the truss shown In Figure 1. Use method of Joints. State…

A: Given Data  Find the forces in each member using method of joints.

Q: A quadrilateral ABCD (violet) is subjected to axial and shear forces transforming it into a right…

A: The given figure is shown below:

Q: Q- Water is flowing in a rigid pipe, the pressure wave travel will velocity (c) 950m/s. The value of…

A: Given- Pressure wave travel will velocity = 950m/s, Compressibility of fluid C= 6×10–10 , Velocity…

Q: Question 6 Calculate the radius of a turn out for a data given below:- G = 1.67 m, D = 13.3 cm & N =…

A: Given- Gauge length G = 1.67 m, D = 13.3 cm & N = 12 Angle of switch Φ = 108’ The radius of a…

Q: Two line loads are applied on the given profile with the stress increase determined to be 42 kPa at…

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Q: A steel bar of 22 mm diameter and 8 cm gage length was axially loaded in tension and the following…

A: Given, D = 22 mm  L = 8 cm or 80 mm

Q: 8.9) A long rectangular channel 3.0m wide with a flow rate of 11.6 m³/s has a specific energy, E =…

A: Given: The width of a rectangular channel is b=3.0 m. The flow rate is Q=11.6 m3/s The specific…

Q: The helical spring shown is axially loaded with a compression force P equa The mean diameter of the…

A: Given : P = 5 kN Mean diameter of spring = 100 mm To Determine :

Q: If P = 114 kN, determine the normal stress produced at point H of the pier support shown.

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Q: 3. Using conjugate beam method determine the value of Elō under each concentrated load of the beam…

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Q: Example 2 : Design a concrete mix to implement a concrete slab (exposed to sever conditions moisture…

A: Given, f'c = 30 MPa S = 4 MPa Density of aggregate = 1500 kg/m3  FM = 2.4

Q: (b) A cooling tube having the cross section shown in Fig. Q1(b) is formed from a sheet of stainless…

A: The data is as given in the question

Q: The guy wires AB and AC are attached to the top of the transmission tower. The tension in cable AB…

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Q: 2- Use PERT techniques find project duration Activity Precedence optimistic Time ABCDEFGHIL J 1 A B…

A: Activities and their relationship with the precedence activities are given. The most likely time,…

Q: Determine the force in member EF for the truss shown using the method of joints. 40 kN 5m E a.…

A: Given,  Point load  40 kN at  each joint B, C and D.  Vertical distance between E and A = 5 m

Q: Questions 1. What is the soundness of cement? 2. What is the purpose of soundness test? 3. How is…

A: There are various physical and chemical properties of cement, which affect the setting time,…

Q: The width of a square footing and the diameter of a circular footing are equal. If both the footings…

A: Given data- Width of a square footing = diameter of a circular footing, Both the footings are placed…

Q: A roof system has a total surface area of 3,450 sf, which will be covered by 3-tab asphalt shingles…

A: The total surface area is 3450 sf. It is known that in Asphalt 3-Tab Roof Shingles, there are 26…

Q: Question 6 The catchment area of a drainage basin is 2100 km². The length of mainstream (L) is equal…

A: Given: The catchment area of drainage basin, A = 2100 km2 The length of mainstream, L = 80 km…

Q: A reservoir has a water height (H) of 15 meters (from the surface to the centerline of the reservoir…

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Q: 6. A tertiary treatment plant treats a municipal secondary effluent and is to employ fixed-bed…

A: Reference : Environmental Engineering, Waste water treatment plant. Given : Flow, COD, Contact time…

Q: Given the tangent distance equal to 240.59 meters and the angle of intersection equal to 34, what is…

A: Given data in question  Tangent length 240.59 m Intersection angle 34 To find out  External distance

Q: 2. Using conjugate beam method determine the value of Eld at the point of application of the 200 N.m…

A: Given Data  Find the deflection at 200 Nm using conjugate beam method.

Q: An open tank contains a liquid with a specific gravity of 1.735. If the height of the liquid is 9…

A: From Given Data : For an open tank: Specific gravity of liquid (SG) = 1.735 Height of the liquid…

Q: A solid plastic rod has a diameter of d = 18 mm and a length of L = 525 mm. An axial load of P = 25…

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Q: Question- A valley curve in formed by an descending gradient of 1 in 25 meeting an ascending…

A: Given: A valley curve in formed by, A descending gradient of 1 in 25 An ascending gradient of 1 in…

Q: Q1. Determine the approximate axial forces, shears, and moments for all the members of the frame by…

A: The portal method is generally used for the short frames that are deforming like in shear mode .…

Q: There is a direct relationship between gun traverse speed and thickness of the coating **Is it true…

A: Gun traverse speed is increased with decreasing coating thickness.

Q: The roof truss shown is typically used for solar energy purposes, where a near normal angle of…

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Q: PART 3. Determine the reactions at supports. Also, draw the shear and moment diagram per member.…

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Q: A live load 0f 80 KN/m moves on a simply supported girder of span 12m. The maximum bending moment…

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Q: Please give the Group Symbol and Group Name of the given soil sample and provide proof or of the…

A: Answer  Let us first plot the size distribution curve and find the coefficient of Uniformity and…

Q: From the following cross-section notes, complete the table below. Use prismoidal method. Road bed…

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Q: Determine the forces in members BC and CG. The forces are positive if in tension, negative if in…

A: A ) Problem of Trusses where we are asked to determine forces in member BC and CG.

Q: In the figure below, one end of a uniform beam of weight 943 N is hinged to a wall; the other end is…

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Q: Dron Acompound steel [G=80 GPa) shaft consists of a solid 110-mm-diameter segment (1) and a solid…

A: Given data,  G = 80 GPa Solid shaft 1 diameter = 110 mm Solid shaft 2 diameter = 56 mm Allowable…

Q: A vinyl [E = 2.65 GPa; v = 0.42] block with width b = 60 mm, depth d = 120 mm, and height h = 320 mm…

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Q: Activity A B C D E F G H 1 J K L M N Draw a network for this project. Preceding Activity None A A B…

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Q: A watershed has five non-recording rain gauges, installed in its area. The amount of rainfall…

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Q: 2. Determine the force in each member of the truss shown in Figure 2. Use method of Joints. State…

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Q: A beam section is limited to a width of 300 mm, and total depth h=500 mm, and has to resist a…

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Q: A barge 6 m wide, 2.44 m high and 15.25 m long floats in a river. It is loaded with rocks such that…

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Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.