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Civil Engineering Questions and Answers February 02, 2018

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Your compary was awarded a culvert contract. The contract manager has appointed you to manage the project and has requested you to provide a schedulo for the chent The contract manager handad you the table below, showing a breakdown of activities involved, together with their duration. The Start date is the 0 1 / 0 2 / 2 0 2 4 ( 1 st February 2 0
Your compary was awarded a culvert contract. The

explain the transportation systems and hydrology of Columbiana county Ohio

The frame showm below has two members ab anr bc connected by a pin at B . A is a fixee support and c id a roller support. Find the vertical reaction at c

u _ o = ( h _ a * k * c ) / ( sinh ( k * H _ o ) , A = ( h _ a * c ) / sinh ( k * H _ o ) , c ^ 2 = g * tanh ( k * H _ o ) / k , with k = 2 pi / wavelength . H _ o = 5 m , wavelength = 4 0 0 m , and h _ a = 0 . 0 4 m . Solve for C , A and u _ o . and then plot the properties of u ( x , y , t ) as a function of y for x = 0 and kct = 0 , pi / 4 , pi

A company projects that they need to replace equipment in 1 0 years. The price to replace equipment is expected to be $ 8 0 0 , 0 0 0 . The company is investing $ 5 5 , 0 0 0 per year for each year. Determine the minimum rate of return required to have the replacement money after 1 0 years.
A company projects that they need to replace

Steps for This and graph it
Steps for This and graph it

A NC clay has an effective friction angle of 2 8 and zero effective cohesion. A CU test conducted on the clay gave the following results: Confining stress = 1 0 5 kPa. Deviator stress at failure = 9 7 kPa 1 CE 3 5 7 Introduction to Geotechnical Engineering UT Austin a ) Calculate the pore water pressure developed in the specimen at failure. b )
A NC clay has an effective friction angle of 2 8

3 . Solve for the ( a ) Shear and Moment Equations, then ( b ) Plot the Shear and Moment Diagram, use any method ( c ) point of Zero Shear, ( d ) Maximum Moment
3 . Solve for the ( a ) Shear and Moment

8 . 1 5 ) The flow rate and water depth just upstream of a dam are \ ( 1 5 \ mathrm { ~m } 3 / \ mathrm { s } \ ) and 4 . 0 m respectively. The rectangular channel has a width of 6 m , a bed slope of 0 . 0 1 0 and a Manning's roughness coefficient \ ( n = 0 . 0 1 8 \ ) . Determine the location of the hydraulic jump before the dam.
8 . 1 5 ) The flow rate and water depth just

Fig. P 6 . 1 2 , P 6 . 3 8 . Determine the slope and deflection at point B of the beam shown by the moment - area method
Fig. P 6 . 1 2 , P 6 . 3 8 . Determine the slope

SITUATION III For the beam shown, use Double integration method and answer the following questions. 7 . what is the slope at A ? a . - 4 3 2 / EI c . - 4 7 7 / EI b . - 3 3 8 E I d . - 2 2 7 E I 8 . what is the deflection at the midspan? a . - 1 2 7 6 / EI c . - 9 8 7 E I b . - 1 9 6 7 / EI d . - 1 4 7 8 / EI 9 . from point A , where is the
SITUATION III For the beam shown, use Double

Problem 4 , Design an irrigation canal to supply 5 0 m 3 s e c of water at a slope of 1 in 5 0 0 0 with Kutter's n = 0 . 0 2 5 and m = 0 . 9 5 , using Kennedy theory.
Problem 4 , Design an irrigation canal to supply

[ 3 0 points - 1 0 points each a , b , and c ] A horizontal curve on a two - lane highway is 3 5 0 ft long, and the design speed of the highway is 6 0 mph . If the superelevation is 8 % , the limiting side - friction coefficient is 0 . 1 5 , and the station of the P C is 1 7 + 3 5 . The width of each lane is 1 2 ft . ( a ) what is the station of
[ 3 0 points - 1 0 points each a , b , and c ] A

CHAPTER EXERCISES 6 8 7 create a complete orthographic drawing of the base drawing listed as # 1 in the picture in chapter 1 4 . Include all views needed to clearly show the part. All dimensions needed ro make the part and a border and title block setup with construction lines.
CHAPTER EXERCISES 6 8 7 create a complete

Analyze the truss for displacement Shown in fig Take E = 2 0 0 GPa and Area = 1 0 0 m m 2
Analyze the truss for displacement Shown in fig

1 5 - 8 determine the moments at the supports . Assume 2 is roller. EI is constant Determine the moments at the supports. Assume ( 2 ) is a roller. El is constant. Prob. 1 5 - 8
1 5 - 8 determine the moments at the supports .

For the beam shown, find the internal shear force at point B . a . , 1 7 0 k N b . 3 9 0 kN c . 4 0 0 kN d . 9 . 2 kN
For the beam shown, find the internal shear force

Question 4 : A cantilevered beam ( fixed at the base ) is loaded with a uniformly distributed load acting over part of the span and a concentrated load acting 4 m from the fixed end. The beam is rectangular in eross - section with a 2 0 9 mm width and 6 0 0 - m m deph. The beam is made from sieel having an allowable normal stress of 2 4 0 MPa and
Question 4 : A cantilevered beam ( fixed at the

Question 2 . Water Supply Pipes in an Apartment As shown in the figure, cold water \ ( \ left ( 1 0 ^ { \ circ } \ mathrm { C } \ right ) \ ) flows from the water meter to either the shower or the hot water heater. The water heater raises the temperature to \ ( 6 5 ^ { \ circ } \ mathrm { C } \ ) . Equal amounts of hot and cold water mix to
Question 2 . Water Supply Pipes in an Apartment

The truss shown in ( Eigure 1 ) supports a F = 1 3 0 k N load at J . The horizontal members are each 1 m in length Part A Use the method of joints to determine the axial force in member D G . Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the
The truss shown in ( Eigure 1 ) supports a F = 1

Q 1 ) Using influence lines, determine maximum positive and negative shear and maximum bending moment at joint C for the loading specified. Dead load: Uniform load of 4 k f t Live load: Uniform load of 2 . 5 k f t and two concentrated loads 2 0 kips and 1 0 kips , respectively, that are separated by 8 ft . Consider Design Factored Load: 1 . 2 DL +
Q 1 ) Using influence lines, determine maximum

- Find reactions and draw Shear and Bending Moment Diagram.
- Find reactions and draw Shear and Bending

Using the load Table 5 . 4 0 given in the handouts ( Chapter 5 excerpt from LRFD Steel Design and Table 5 . 4 0 ) or Table 1 8 . 2 in your textbook and select an open - web steel joist for the following floor systems and loads: Joist spacing = 3 f t Span length = 2 1 f t Loads are dead load = 2 0 psf , live load = 4 0 psf and there is a 3 ' '

Explain the term: ( i ) Column and Strut ( ii ) Buckling load and Crushing load ( iii ) Long column and Short column

Determine the support reactions and draw the shear and bending moment diagrams for each of the following structures using moment distribution method.
Determine the support reactions and draw the

problem 5 . The rectangular deck of a railroad bridge - buil on a 5 0 - 0 out wide water channel - sits on a 2 5 - foot - tall smooth cylindrical pier, as shown in the are expottom of the pier, caused by drag forces. the drag coefficient of the bridge deck is is 1 . 6 1 1 0 - 4 f t 2 s , and air density is 2 . 3 4 1 0 - 3 equal to 1 . Air
problem 5 . The rectangular deck of a railroad

Determine the joint displacements, member axial forces and support reactions for thd trusses shown, using the matrix stiffness method.
Determine the joint displacements, member axial

Calculate the reaction at point A for the beam shown. Give the answer in in kips ( give number only )
Calculate the reaction at point A for the beam

( 1 0 ) On the planet of
( 1 0 ) On the planet of

Determine the centroid distance from above the base of the inverted T - beam with dimensions of A = 3 . 8 mm , B = 8 0 mm , and C = 4 6 mm shown in Figure 1 1 . A . 5 5 . 3 0 mm B . 2 8 . 5 0 mm C . 2 7 . 5 0 mm D . 5 6 . 3 0 mm Also determine the centroid distance from the tip of the inverted T - beam A . 5 5 . 3 0 mm B . 2 8 . 5 0 mm C . 2 7 . 5
Determine the centroid distance from above the

For the beam shown, a ) Determine the reactions at the supports. b ) Draw the SFD and BMD using the graphical method ( relations among load, shear, and bending moment ) . No need to report changes in shear force and bending moment. c ) Identify the values and their locations of maximum shear force, and maximum and minimum bending moments.
For the beam shown, a ) Determine the reactions

A rectangular pontoon 1 3 . 5 m long, 5 . 4 m wide and 3 m height floats in a sea water with the 3 m side vertical. It weighs 4 2 0 kN and its centre of gravity is 1 . 2 m above the plane of the base. Calculate the metacentric height of the pontoon. Density of sea water is 1 0 2 5 k g m 3 .
A rectangular pontoon 1 3 . 5 m long, 5 . 4 m

SITUATION A . The transmission tunnel with diameter of 3 m and length of 2 3 . 7 km conveys water from a dam reservoir to a receiving portal for the treatment facility. The water surface elevation at both ends of the tunnel are 7 5 mamsl and 3 0 mamsl, respectively. 1 . Determine the discharge rate in the tunnel in \ ( \ mathrm { m } ^ { 3 } / \
SITUATION A . The transmission tunnel with

Which of the following does not usually affect scale in building 1 . Character of building 2 . Normal requirements of human beings 3 . Type of material 4 . size of material and clarify the answer

* 6 - 8 . Determine the force in each member of the truss and state if the members are in tension or compression. Problem 6 - 8
* 6 - 8 . Determine the force in each member of

Question 1 Specification of a select column is 4 0 0 0 psi concrete strength, Grade 6 0 steel reinforcements to be used. The column will be 1 2 ft in height being loaded by 1 2 5 - kip dead load and 1 5 0 kips live load. If eccentricity of load is 0 . 5 6 ft from the centroid of the column, complete the following: a ) Design the tied - column
Question 1 Specification of a select column is 4

What potentially eliminates use of geoid models in use of RTK for elevation determination? Explain why horizontal localization requires two points ( no redundancy ) while vertical localization only requires one BM ( no redundancy ) . Thinking of vertical as a surface, why do two BM ' s for vertical localizing not solve the problem of localization?
What potentially eliminates use of geoid models

Pb 3 ) - A fully composite floor system consists of W 1 4 2 2 beams and 4 in thick reinf. concrete slab with effective width b effective = 9 0 i n . The beams are spaced at 7 f t - 6 in , and the span length is 3 0 ft . Assume no lateral support during the construction phase. The superimposed loads are as follows: Pre - composite ( construction
Pb 3 ) - A fully composite floor system consists

C V B N Ctrl Alt Fn Problem 3 . A load that can be modeled as a point load is applied on the soil profile below. Point C is 1 . 5 m directly below the applied load. a ) Calculate the change in total stress at point " C " , due to the point load. P = 5 0 k N z = 1 . 5 r = 1 . 5 Stress caused by a pt . lad: z = 3 p z 3 2 ( r 2 + z 2 ) 5 2 z = 3 ( 5
C V B N Ctrl Alt Fn Problem 3 . A load that can

Pipeflow energy loss 7 6 . 0 A homeowner is interested in supplying water to her wood shop. However, she is cor of water pressure. Calculate the pressure drop she can expect for. Assume minor loss Solution: Key: Determine the friction head loss and convert it to a pressure drop To determine the frictional factor used in Darcy - Weisbach Equation:
Pipeflow energy loss 7 6 . 0 A homeowner is

Use method of joints. Determine the forces in all members. State final answer as C or T with magnitude and units. P 1 = 1 , 4 5 1 k N , P 2 = 8 8 0 k N . version 6 . 3 If there is a zero - force member, state that in your answer for full credit. Copyrighted Professor Albert Wong and do not upload. Sketch and use ONLY FBD at joint C and D . Start
Use method of joints. Determine the forces in all

another photo that could help These coefficients are given in the table below: Key a 0 . 5 5 ( G + Q ) may be used adjacent to the interior span. Notes 1 Redistribution of support moments by 1 5 % has been included. 2 Applicable to 3 or more spans only and where Q _ ( k ) = G _ ( k ) . 3 Minimum span > = 0 . 8 5 longest span. 4 I is the effective
another photo that could help These coefficients

A four - sided closed field traverse has the following angles: A = 8 1 5 3 ' 3 0 ' ' ; B = 7 0 2 8 ' 3 0 ' ' ; C = 8 6 0 9 ' 3 0 ' ' ; D = 1 2 1 3 0 ' 3 0 ' ' . The lengths of the sides are as follows: A B = 6 3 6 . 4 5 f t ; B C = 6 5 4 . 4 5 f t ; C D = 3 8 2 . 6 5 f t ; D A = 4 6 9 . 3 8 f t . The bearing of AB is S 1 7 1 7 ' W . BC is in the N
A four - sided closed field traverse has the

Question 2 : The same beam from Question 1 now has an additional deadload ( not including self - weight ) of 1 . 8 k f t and has some additional compression reinforcement. Find the following: a ) Does deflection need to be checked for this beam per ACl 3 1 8 ? b ) The cracked moment of inertia of the beam c ) The effective moment of inertia for
Question 2 : The same beam from Question 1 now

2 - Given the following information and assuming a stripping cost of $ 7 . 5 0 per tonne and a profit allowance of $ 5 . 0 0 per tonne, calculate the cutoff grade for a copper price of $ 3 . 5 0 / / lb . Show your calculations. ( 6 points ) Heads % Cu 2 . 6 0 2 . 3 0 2 . 1 0 1 . 8 0 1 . 5 0 1 . 2 0 % Rec'd 9 8 . 0 0 9 6 . 0 0 9 3 . 0 0 9 0 . 0 0 8
2 - Given the following information and assuming

The below reinforced concrete slab is 8 . 0 in thick and supported by beams ( * ) all around as shown. The top sketch is a cross - section, and the bottom sketch is a plan with: Dead Load = self - weight + 4 0 psf Live Load = 5 0 pst Yconcrete = 1 5 0 pcf Supporting beams' width = 1 2 in base on this information, the negative ultimate moment in
The below reinforced concrete slab is 8 . 0 in

Compute the time of concentration using the following methods: For each method, compute travel time for each segment, sum segment travel times to determine catchment Time of Concentration, Tc ( a ) NRCS , CN method: Equation 3 . 5 1 with Table 3 . 4 to select CN ( b ) Velocity - Slope method ( Manning Equation ) : Table 3 . 1 3 , 3 . 1 4 to
Compute the time of concentration using the

A 1 0 , 0 0 0 gal aeration basin maintains a constant 1 5 0 0 mg VSS / L concentration and treats 2 5 , 0 0 0 gallon of waste / day which is influent from the primary clarifier. The 1 5 0 0 mg VSS / L suspended solids leaving the aeration basin are sent to a clarifier to be separated. There are 2 streams leaving the 2 n d clarifier: an effluent
A 1 0 , 0 0 0 gal aeration basin maintains a

The coefficient of permeability of an unconfined aquifer is to be determined by pump - out test. The aquifer has a thickness of 1 0 m . The water table is 3 m below the ground level. Two observation holes are installed at 5 m and 1 0 m from the well. Steady state conditions reaches at a pumping rate of 3 3 . 4 L / s when water levels in the

An input ppm constant of 1 0 will add how much to an allowable positional tolerance is the nearest control station is 5 kilometers away. ( a ) 0 . 5 meters ( b ) 0 . 0 5 meters ( c ) 0 . 0 0 5 meters ( d ) 0 . 0 2 meters

List three things that could potentially add to the cost of concrete work.

You are in charge of monitoring the efficiency of a municipal water treatment facility. After returning from vacation, you see that the BOD of the facility is unacceptably high. You trace the problem to the development of a bulking sludge. Select all of the following that accurately describe the situation at the facility. Check All That Apply A

1 . ) The figure shows a portal frame which is subject to a distributed load on member BC and two concentrated load at joint \ ( C \ ) . Assume that \ ( A \ ) is roller support and \ ( D \ ) is pinned support. a . Draw the shear force diagram for each member of the frame. State the value of shear force within the member and the location of zero
1 . ) The figure shows a portal frame which is

Find the effective ( SCS ) Storage, S ( in ) , of the basin for the pre - developed upland area?

a . Determine the \ ( x \ ) component of reaction at the support \ ( B \ ) . b . Determine the \ ( x \ ) component of reaction at the support \ ( A \ ) . c . Determine the \ ( y \ ) component of reaction at the support B . d . Determine the \ ( y \ ) component of reaction at the support \ ( A \ ) .
a . Determine the \ ( x \ ) component of reaction

A city of 2 0 0 , 0 0 0 people deposits 3 7 cubic feet per second ( cfs ) of sewage having a BOD of 2 8 . 0 mg / L and 1 8 mg / L of DO into a river that has a flow rate of 2 5 0 cfs and a flow speed of 1 . 2 ft / sec . Just the upstream of release point, river has BOD of 3 . 6 mg / 1 and DO of 7 . 6 mg / l , The saturation value of DO , is 8 . 5

Problem 1 and 2 : There are two steel columns - C 1 ( 1 0 ' long ) and C 2 ( 2 0 ' long ) . Both columns are made of W 1 6 4 0 ( A 3 6 steel ) and bave the same cross - section. If both columns have the same connection methods, which column can support more load before buckling? Explain why? How much more load can one column support than the other

Given that the specific weight ( dry ) of the loam is 2 0 and specific weight of the loam ( wet ) is 3 0 . And given that the specific weight ( wet ) of the clay is 1 5 . All units listed above are in kN / m ^ 3 The Cce and Cre ratios are given as 0 . 1 5 and 0 . 0 5 respectively Note: The fill is 2 5 kN / m ^ 3 not 1 7 5 pcf as labeled * * * * If
Given that the specific weight ( dry ) of the

Q 2 Base Plate Check that the column base plate shown in Figure Q 7 is suitable to resist an axial design load, \ ( N _ { \ mathrm { Ed } } \ ) , of 2 2 0 0 kN . Assume that the foundations are of concrete of cylinder compressive strength, \ ( f \ mathrm { ck } \ ) , of 2 5 MPa and that the base plate is made of S 2 7 5 steel. The effective base
Q 2 Base Plate Check that the column base plate

B 5 A drainage system design was proposed having a constant slope of 0 . 0 0 2 5 with three circular channels made of finished concrete. Two of the channels have a diameter of 1 . 8 m and drain into the third channel. If all channels are to run half - full and the losses at the junction are negligible, determine the diameter of the third channel.
B 5 A drainage system design was proposed having

The Pratt truss shown carries a uniform live load of 2 k N m and a single concentrated live load of 1 5 kN . Using the influence line shown determine the stresses in members HI , BH , and AG .
The Pratt truss shown carries a uniform live load

COURSE CODE: P 0 0 3 0 2 5 - 0 0 1 - 2 0 2 4 RE - SUBMISSION ASSIGNMENT 7 \ & 8 Assignment due date: 4 November 2 0 2 4 at 1 6 HOO . Submit assignments, in Word or PDF format on Turnitln - ClickUp The assignment is an individual attempt by the delegate to show his understanding of the relevant module. Assignments should not be longer than 8 pages.
COURSE CODE: P 0 0 3 0 2 5 - 0 0 1 - 2 0 2 4 RE -

Problem 9 : Two identical pumps have the characteristic curves shown in Figure 3 . The pumps are connected in series and deliver water through a horizontal 1 5 - c m - diameter, 1 0 0 0 - m - long steel pipe into a reservoir in which the water level is 2 5 m above the pump. Neglect minor losses. a ) Determine the discharge in the system. b )
Problem 9 : Two identical pumps have the

What are the SPCS 8 3 coordinates for a station in New Jersey with geodetic coordinates of 3 9 0 1 2 5 . 0 4 8 6 N and 7 4 2 9 3 6 . 9 6 4 1 W ?

Question 3 ( 2 0 points ) Select the most economical Circular Hollow Section ( CHS ) from the table below for tension member AB resisting the given loads. Use ASD design and section area as effective section area. Given: Steel material S 3 5 5 : F y = 3 5 5 MPa and F w = 4 7 0 MPa Factor of safety for yielding t = 1 . 6 7 , and rupture H = 2 . 0 (
Question 3 ( 2 0 points ) Select the most

1 5 - 6 . Determine the reactions at the supports Assume ( 1 ) is fixed \ ( Q \ ) and 9 are rollers \ ( E I \ ) is constant.
1 5 - 6 . Determine the reactions at the supports

The rectangular channel transports water at 8 m 3 s . Plot the specific energy diagram for the flow and indicate the depth y for E = 3 m .
The rectangular channel transports water at 8 m 3

A two - lane road ( 1 2 ft wide lanes ) has a 5 7 5 ft long horizontal curve with a central angle of 3 0 and a 1 0 % super - elevation. What is the curve's design speed to the nearest 5 mph ?

Question 7 Pin B Force = = A y = = = = Pin A Force i n x - direction = k N Pin A Force i n y - direction = k N Pin C Force = k N Design o r Allowable Shear Stress = MPa Required Pin A Diameter = n m Required Pin B and Pin C Diameters = m m FGSURE P 4 - 1 3 Pin connected structure for Problem 4 - 1 7 Answer 1 :
Question 7 Pin B Force = = A y = = = = Pin A

Part I: Trip Distribution ( 3 5 pts ) Use Excel to solve the following two problems. The following network has three links, and the observed link flow is given at each link ( e . g . , the observed link flow is 1 6 0 0 vehicles per hour from A to B ) . Using the least relative error ( LRE ) preth hif., es singate the travel demand from A to C ,
Part I: Trip Distribution ( 3 5 pts ) Use Excel

A wall has a total of 2 1 8 8 square feet. The insulated portion has R - 1 6 insulation, but 2 % of the total area has gaps ( R - 5 ) in the insulation and 1 5 % of the total are low spots in the insulation ( R - 8 ) . What is the average R - value?
A wall has a total of 2 1 8 8 square feet. The

Problem 1 . For the beam shown in the following, perform the following tasks. ( a ) Draw the factored shear force diagram with factored dead and live load acting on the entire span. Then find the maximum factored design shear force at the support. ( b ) Design for shear reinforcement for the support. Use No . 3 double legged stirrups. = 4 5 0 0 ,
Problem 1 . For the beam shown in the following,

Problem 2 Water flows through a rectangular and symmetrical, but otherwise unspecified, channel expansion as shown in the figure. Given Q = 2 0 0 m 3 s and a 2 . 5 m - deep flow in the 5 0 m - wide approach channel, determine the degree of expansion if the water surface rises by 0 . 0 5 m . Calculate the mean depth and velocity in the expansion.
Problem 2 Water flows through a rectangular and

QUESTION 3 3 . 1 List FOUR factors that influence the hardening and strength of a concrete mixture. 3 . 2 How much water ( in litres ) should be used with 6 0 0 kg of cement if the water - cement: ratio is 0 , 5 ? 3 . 3 Give FIVE advantages of a cavity wall. 3 . 4 State THREE: issues to consider when transporting concrete from the plant to its
QUESTION 3 3 . 1 List FOUR factors that influence

9 - 1 8 . Determine the reactions at the supports, then draw the moment diagram for each member. EI is constant. Prob. 9 - 1 8
9 - 1 8 . Determine the reactions at the

( b ) Further down the watercourse, an engineer is commissioned to manage flooding. They propose a simple compound channel, in place of the existing floodplain and channels, see sketch Figure Q 1 b . This channel section slopes at a 1 . 5 m elevation drop every 1 km . Channel side slope ratios are shown y:x . ( iii ) Determine the maximum flow
( b ) Further down the watercourse, an engineer

5 . Consider a 1 5 km long river reach with a longitudinal slope 0 . 0 0 0 8 and a mean depth of 2 . 5 m . Assuming a wide, shallow channel and a Manning's \ ( n = 0 . 0 2 5 \ ) , estimate the average travel time for a flood wave along the reach, \ ( K \ ) ( in hours ) . ( Answer: \ ( K = 1 . 2 \ mathrm { ~h } \ ) )
5 . Consider a 1 5 km long river reach with a

A town having a population of 1 . 5 lakhs is to be supplied water from a reservoir 6 km away. It is stipulated that half of the daily supply of 2 0 0 lphd is to be delivered in 8 hours. If the head available is 1 7 . 5 m , determine the size of the supply main. Use Hazen - Williams formula and take the value of C for the main as 1 0 0 . [ Ans . 7
A town having a population of 1 . 5 lakhs is to

PORTAL METHOD. Assume the supports are ALL pins. Please find the shear and moment beam and column forces using the PORTAL METHOD. DO NOT COPY OTHER SOLUTIONS AS THEY ARE INCORRECT.
PORTAL METHOD. Assume the supports are ALL pins.

QUESTION 1 , ( 2 5 marks ) ( a ) A temporary trench is to be excavated and supported by sheet - pile walls for constructing a box culvert ( Figure 1 ) . Given the high existing groundwater level, dewatering is required in the excavated area to provide a dry working environment. From calculation, it is found that hydraulic failure may occur as a
QUESTION 1 , ( 2 5 marks ) ( a ) A temporary

1 . Estimate the total cost and cost per ton for furnishing materials, mixing, and placing a hot - mix asphaltic - concrete pavement 1 2 . 5 miles long, 2 6 ft wide, and 8 in . thick on a previously prepared base. The pavement will be placed in ( 2 ) - 3 " base layers and a 2 in . thick driving surface after compaction. Use the same methods,
1 . Estimate the total cost and cost per ton for

Problem 6 . 3 ( 7 Points ) Textbook Problem \ # 8 - 1 6 , page 4 4 4 ( Garber \ & Hoel, Traffic and Highway Engineering, 5 th Ed . ) . Determine the optimal phasing plan, cycle length, and the length of green time for each phase based on the traffic volumes and PHF data presented in the textbook. Two phasing options and the corresponding
Problem 6 . 3 ( 7 Points ) Textbook Problem \ # 8

c . Draw the shear and moment diagrams for the beam. What is the reaction force at point A ? ( a ) 5 0 0 N , ( b ) 1 0 0 0 N , ( c ) 1 5 0 0 N , ( d ) 2 5 0 0 N , ( e ) 3 5 0 0 N . Draw the shear diagram of the beam. Clearly label the maximum and minimum shears on the diagram. Draw the moment diagram of the beam. Clearly label the maximum and
c . Draw the shear and moment diagrams for the

Question 4 In the beam depicted above, A is a fixed support. The magnitude of W = 3 4 5 N m , P = 8 5 N and all lengths denoted by a = 3 . 5 m . The system is in equilibrium. Using the given sign convention, answer the following questions. Please answer in 4 significant figures. a ) Calculate the vertical component of the external reaction at A in
Question 4 In the beam depicted above, A is a

Q 3 A pipe is designed and placed under the ground surface. There is a downward force that prevents it from being lifted. This force is known as: 5 Points Weight Force Normal Force Buoyancy Force Friction Force
Q 3 A pipe is designed and placed under the

An auger boring on the site where a new building will be erected reveal that a layer of clay, saturated density 2 1 4 0 k g m 3 , extended from a depth of 4 meter to a depth of 7 meter. It is estimated that the building will increase the pressure on the upper boundary of the clay from 7 0 kPa to 3 0 0 kPa . The watertable was encountered at a
An auger boring on the site where a new building

In the given truss if P = 1 3 k N , find the force in the member JF in kN
In the given truss if P = 1 3 k N , find the

Solve the problem.A sprinkler system is used to water two areas. If the total water flow is 5 6 0 L / h and the flow through one sprinkler is 6 5 times greater than the other, what is the flow in each at the nearest hundredth?Question 1 0 options:A )

[ 1 5 points ] Bar chart of a raw water is given below in m g L as C a C O 3 . \ table [ [ 0 , 1 0 0 , 1 7 0 . 2 ] , [ C O 2 , C a 2 + , M g 2 + , N a +
[ 1 5 points ] Bar chart of a raw water is given

a ) Use the moment - area method to determine the deflection at the free end of the steel ( E = 2 0 7 GPa ) cantilever beam shown in the figure. b ) For the same beam, compute the deflection at a point 1 . 0 m from the fix support A . X: 2 Y: 2
a ) Use the moment - area method to determine the

1 2 . 2 The following shows a partial roof framing plan of a commercial retail building. The dead load of the roof framing has been determined to be 3 0 psf . Use ASCE Table 4 - 1 to determine the roof live load. Neglect live load reduction factor b ) Determine the tributary width of Beam B 2 and calculate the magnitude of the uniformly
1 2 . 2 The following shows a partial roof

7 - 1 9 * Determine the forces in members C G and F G of the inverted Mansard truss of Fig. P 7 - 1 9 .
7 - 1 9 * Determine the forces in members C G and

solve the staging reaction in this figure
solve the staging reaction in this figure

Ans = 1 . 1 m 3 . 2 5 . Dynamic compaction with a tamper weight of 1 5 ton and a drop height of 1 2 m applies 7 drops on fill with low degree of saturation. Estimate the crater depth 3 . 2 9 . A three - story structure is to be constructed over an 8 0 0 0 - m 2 site. The initial subsurface exploration indicates predominant soil type is a silty

Using mode superposition method, find the seismic base shear of a two - storeyed ( G + 1 ) structure located in Kolkata at medium site. The lumped mass of 1 s t floor is 1 0 0 0 kN and 2 n d storey is 5 0 0 kN . Storey height is 3 m . ( Assume any missing data ) . Take E = 2 1 0 1 0 N m 2 . Take K 1 = K 2 = K , size of column = 6 0 c m 3 0 c m .
Using mode superposition method, find the seismic

Provide the equation commonly used for the deflection equation of a simply supported beam under a uniformly varying load, extending from zero intensity to maximum intensity w distributed across the entire span.

Q 3 ) Draw the axial force, transverse shear and bending moment diagrams for the beams A B and B C . ( 1 5 0 kN m moment is appliad at B )
Q 3 ) Draw the axial force, transverse shear and

3 - A . 5 In the middle of Boston Harbor, the soil surface ( also known as the 'mudline' ) is 4 0 ft . below the water surface. The soil is Boston blue clay and has a total unit weight = 1 2 2 pcf . You are to determine both, the total vertical stress and the effective vertical stress at a depth of 2 0 ft . below mudline ( which would be at the
3 - A . 5 In the middle of Boston Harbor, the

Determine the forces in the three members FG , EG and IJ
Determine the forces in the three members FG , EG

9 - 5 0 . Use the M ller - Breslau principle to sketch the general shape of the influence line for the moment at A and the shear at B . Prob. 9 - 5 0
9 - 5 0 . Use the M ller - Breslau principle to

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