Explain the difference between point and interval estimation.

Q: The working life of dam built to store irrigation requirement is return period of 100 yrs. The…

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Q: Determine the ultimate or the factored moment capacity oMn of the beam cross section shown if fc' =…

A: b = 350 mm h = 600 mm cover = 70 mm Steel reinforcement: 3-#25mm fc = 28 MPa fy = 275 MPa

Q: . A trapezoidal concrete-lined ditch has a bottom width of 3 f depth of 2 ft, and side slopes of…

A: Assuming Manning's coefficient (n)= 0.015 for concrete lined channel Bottom width (B)= 3ft Depth of…

Q: Question #12, Case 2: Subcontractor quality control This general contractor was constructing a very…

A: GCs supervise a construction project from beginning to end and are responsible for overseeing all…

Q: A body is loaded elastically so that strain in y-direction (e) = 0 and o₂ = 0. Take o and as finite.…

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Q: The mayor of a large downstream city demands an estimate of hours for the spill o get to reach…

A: Engineering, soil science, biology, and chemistry are used by environmental engineers to solve…

Q: A sample coarse grained soil is 50mm. In diameter and 150mm long was tested in a constant-head…

A: Constant Head Permeability Test  Diameter of sample (d) = 50mm = 5cm  Length of sample (L) = 150mm =…

Q: Question- Hydrology a mean annual runoff 1 m³/s from a catchment of area 10 km² represents an…

A: Mean annual runoff = 1m3/s Catchment Area A=10 km2

Q: Find shear and moment digram

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Q: The tension member of a roof truss consisting of two angles of 75 x 50 x 10 mm carries a maximum…

A: The angles used as a steel section = 75×50×10 mm  The magnitude of the axial tension = 250 kN The…

Q: 33.33 is wrong

A: The rigidities of walls A, B, and C  = 1.0 The rigidity of wall D = 1.5. Force acting in horizontal…

Q: re D -2 ft- -2 ft- B < 3 ft

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Q: The pressures at the ends of 605m long horizontal pipe flow are 350kPa and 270kPa. The pressure at…

A: Here we have given The values given in the question are as follows length of the pipe(L)=605 m…

Q: 1.20 The hoisting rope for a mine shaft is to lift a cage of weight W. The rope is of variable…

A: The problem is based on stress and equilibrium concepts.  Let the cross section at height z be Az…

Q: Two steel plates with thicknesses of 16 mm and 18 mm are connected together using four 12 mm bolts.…

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Q: A portion of a mechanical coin sorter works as follows: Pennies and dimes roll down the 29 degrees…

A: Let us first draw the free body diagram based on the given data On Considering Moment about O, we…

Q: Q2. A 10 m long beam weights rests against the smooth wall as shown. The weight of the beam is 2 N.…

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Q: innovative product for civil eng students that is not existing today?

A: An innovative product is a new or improved product that introduces a unique or novel feature,…

Q: Q1/Determine the deflection at point B of the steel beam ( use Conjugate Beam). I = 800 in E =…

A: The magnitude of the point load = 5 k  The moment of inertia of the beam (I) = 800 in4  The modulus…

Q: 4t D A 5t ↓E C F B

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Q: 1. Using the Right-Side Elevation, determine the quantity of brick required to place the brick…

A: To determine the quantity of brick required for a brick veneer face, you need to know the area of…

Q: A rectangular channel of cross-sectional dimensions 15 x 9m is running at one third. What is the…

A: Width of channel (b) = 15m  Depth of channel (d) = 9m  Depth of flow is one-third of depth of…

Q: A reinforced concrete bearing wall supports a factored load of 650kN/m. It is laterally supported at…

A: Wall bearing factored load = 650 kN/m Unsupported height = 3500 mm Unsupported length = 3000 mm…

Q: 1. Answer the following two parts: a. Derive an expression for amber time for signalized…

A: NOTE : Since you have asked multiple questions, we will solve the first question for you. If you…

Q: What is the intensity of active earth pressure at a depth of 10.0 m in dry sand with an angle of…

A: Angle of shearing resistance = 30o and unit weight of 18 kN/m3.

Q: 8. The precipitation on a catchment in Jubail Industrial City of area 95 km² is sampled in table…

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Q: The pressure intensity at a point in a fluid is given 3.924 x 104 N/m². What will be the…

A: Pressure- P=3.924×104 N/m2

Q: The stress value in reinforcement at the commencement of first crack in concrete is (Assume modulus…

A: The modulus of elasticity of steel E= 216 GPa.

Q: A cube having dimensions of 1x1x1 meter is placed on the rock at bottom of the ocean. The…

A: compressive strength of cube= 20MPa = 20 MN/m2 unit weight of water = 1 ton/m3 To find load carried…

Q: Test yourself! Calculate average rainfall for this catchment. Zone 1 2 3 4 total *Answers will be…

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Q: Problem #1 A 20-m-long concrete pile is shown Below. Estimate the ultimate point capacity Q by: a.…

A: Ultimate loads are calculated statistically and should (hopefully) never occur in practice. Limit…

Q: A pipe line consists of successive lengths of 406-mm, 367-mm, and 298-mm pipe. With a continuous…

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Q: Coarse aggregate is placed in a rigid bucket and rodded with a tamping rod to determine its unit…

A: According to given data  Coarse aggregate is placed in a rigid bucket (mold) and rodded with a…

Q: Consider the loaded truss shown below. Identify the zero-force members.

A: In this truss problem, only member BK is a zero force member because at joint B, two member are…

Q: Determine the shear force and bending moment at section C. 200 N/m A₁ = 800 N -3 m- C 3 m 400 N/m B.…

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Q: A hydraulic jump occurs in a 4 m wide rectangular channel carrying a discharge of 5 cumec at a slope…

A: →Width of rectangular Channel B=4 m→Discharge Q= 5 cumec→Slope S=0.004→hydraulic jump y1=1.2 m To…

Q: 23. The plan view of the cooler/freezer area and the section view of room east wall are shown below,…

A: Elevation refers to the height or altitude of a geographic location or object above a given…

Q: Q-The time of concentration at the outlet urban area catchment of 1.5 km² area with a run off…

A: The time of concentration at the outlet urban area catchment of 1.5 km2 area with a run off…

Q: The pipe with two rigid caps attached to its ends is subjected to an axial force P. (Figure 1)…

A: Axial force = P Modulus of elasticity = E  Poisson ratio = v

Q: A fluid (s=0.92) flows through a 97 mm diameter pipe at a velocity of 4 m/sec. Compute the Volume…

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Q: A river of discharge of 90 cfs with pollutant concentration of 30 mg/l. The river receives a…

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Q: Q2/Find the vertical deflection of joint c (use Unit Load). E=200*10³ kN/mm², A-301 mm² ,short…

A: The given truss is statically determinate can be analyzed using the equations of equilibrium. The…

Q: What are the three stress invariants (in MPa) respectively in a body under the stress ₂y = 5, T₂x =…

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Q: For what velocity of flow of water in a new, clean 6-inch schedule 40 steel pipe would an energy…

A: Diameter of steel pipe, D=6 in 1 ft12 in=612 ft=0.5 ft Energy loss, hL=20 ft Length of pipe, L=1000…

Q: 1. Calculate total stress, pore-water pressure and effective stress at location A. If the water…

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Q: Design a composite pipe drain of parallel grid system to be installed, en laterals are joint a…

A: We need to determine the dimensions and layout of the laterals and the collector. The design should…

Q: A river of discharge of 90 efs with pollutant concentration of 30 mg/l. The river receives a…

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Q: Analysis of annual flood series of a river yielded a sample mean of 1000 m³/s and standard deviation…

A: Flood A flood is a very high stage in a river, generally at the point where the river breaches its…

Q: A rectangular channel of 2.5 m width is carrying a discharge of 4 m³/s. Considering that…

A: A rectangular channel- Width B=2.5 m, Discharge Q=4 m3/s,

Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.