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- H.W: Find the total duration of the project and determine the critical path for the activities shown below by using Activity on Arrow method (A.O.A). Activity AB CEDFGHJLNM I0KPQR 2 4 32 7 5 8 31 4 73 11 8 2 43 12 Duration Day Followed DD FH E F GJ I By P I M MOO0 QRQRR K --- NQuestion 48 schedule is a schedule in which the resources for a project are assigned to activities so the activities can be closely monitored. O resource-loaded O time-loaded A look-ahead O preliminary amazon Bcer F12 Scr Lk Artêtdéf PrtSclimpréc SysRg/Syst. F4 F5 F6 F7 F8 F9 F10 F11 Bre VAAssignment # 1 3. For the following schedule, draw the arrow diagram (AOA), perform the CPM calculations, mark the critical path, and complete the table. Activity Duration Precedent ES EFLS LFTFFF A B C D E F G H I J K L M 3 10 7 6 5 4 2 4 10 6 4 2 1 A A B B, C с D D, E E E, F G, H, I H, I J, L CRITICAL PATH
- The labour unit cost of excavation by hand referring to the crew calculations is: O $134.27/m3 O $142.82/m3 O $106.97/m3 O None of the above QUESTION 6 The labour unit cost of excavation by hand referring to the man-hour calculations is: $134.67/m3 O $156.25/m3 $106.76/m3 O None of the above QUESTION 7 The man hour productivity rate for hand trimming is: O 0.52 mh/m2 O 1.13 mh/m2 1.19 mh/m2 None of the aboveQ3: Determine the time completion of project for the activities shown below: Activity A BCDE F GH I. J K L. M Expected duration 8 66 11 0 14 8 9 0 10 (weeks) 12 15 8. Preceded by AABCCGGD,M E,F,J E,FJ LI,H K,N,0 12Two one-man barber shops sit side by side in DunkirkSquare. Each can hold a maximum of 4 people, and anypotential customer who finds a shop full will not wait for ahaircut. Barber 1 charges $11 per haircut and takes anaverage of 12 minutes to complete a haircut. Barber 2charges $5 per haircut and takes an average of 6 minutes tocomplete a haircut. An average of 10 potential customersper hour arrive at each barber shop. Of course, a potentialcustomer becomes an actual customer only if he finds thatthe shop is not full. Assuming that interarrival times andhaircut times are exponential, which barber will earn moremoney?
- 1%Vo lI. In. 7:08 Report.JPG Question Table 1 shows the list of the consecutive activities and their details for an 8-mi road construction project. Prepare a line of balance schedule for a contract of 125 sections using a target rate of build of 1.5 mile per week and each team working at their natural rate assume a minimum buffer time of 4 days between the operation and five 8 hrs days per week. 1. What is the overall duration of the project? 2. The date of the end of construction of 75% of the road. 3. The rate of work progress after 4 weeks. Activities Description Man hours Team size Depends on Clearing 550 B Grubbing 550 5 Earth work 460 4. A, B D Base 420 3 Paving 330 3 D F Finish Shoulders 200 1 E Move out 180 1 >Construct the PERT Net work for the data shown below and determine the exPected finish date ,f Probabilty of finishing the 25 months works in Activity a 6 5-10 5-15 10-20 15 2. 4 to 15-25 4 7 12. 20-45 2 25-30 구 25-35 30-40 2. 35 -40 2. 3. 5 40-50 45-50 4 4 1. 50-55 2 3Q3: A company awarded a contract to erect 124 electrical towers the table below shows the sequential operation also the estimated man-hours and optimum number of men/operation the hand over is 6 towers/weeks prepare a line of balance schedule assuming 5 working days/week and 8 hours/day, the minimum buffer time 3 day Activity Man-hour Q(Optimum ofmen/operation Description Excavation 55 64 4. Implementation foundation of reinforced concrete 145 8 Installing the Tower Cable arm fixing Insulator fixing 90 8. 25 Determine the completion date of the project Determine the completion date of the installing Towers Determine the percentage completion of the project when 83% of the electrical tower have been installed. ii- iii-
- Q3/ A construction project have the following data in the table below:- Activity Duration (weeks) Activity total cost ($) 400 Critical Activity Dependency A ---- В 5 350 ---- C 3 A 300 D 3 В 450 E 12 960 ---- F 15 A, B 600 Total project cost = E Activity total cost ($) 3060 %3D Required:- Calculate the contract value, the monthly value of the planned work to be completed (Budget value) and the monthly amounts (payments) that expected to be received (Expected payments) If the ratio of profit that the contractor desires is (15%) and the contract for this type of project provides for the deduction of the amount of 5% (retention rate) from value of monthly payments to pay 50 of the total deductions upon completion of the work and pay the remaining 50 after the end of the maintenance period of 3 months and the first monthly payment received after one month from the start of the project, Draw the curves of the value of the planned work done and the amounts expected to be received.Find the optimum duration and cost for the projects of a 8 activities? No. Activity Durations and Costs for a Seven Activity Project Minimum Crash Change in Cost per Day *1000$ Normal Crash Activity Pre. Cost*1000 Cost*100 Duration Duration 2$ O$ 1 A 8. 14 4 4 1 4 1 --- C A,B 8 8. 24 4 4 4 D В 10 5 24 7 E ВС, 10 9. 18 6. F C,E 20 12 36 6. 2.7 7 G D 10 3 18 2 8. Solution: Draw the plan---- Find all the paths ---- find the critical path---- start the reduction 3636 8 10 14 26 10Question Draw and analyze the arrow network for the following activities by using PERT method assuming three estimated durution for cuch activity which are shown I the table below. Then.find: 1. The probability of completing the work of the whole project in 35 weeks 2. The completion time of the project at probahility of 95% Estimated duration (weeks) Activities to tm tp 9. 1-2 7 2-3 4 11 24 3-5 1 4-6 4. 5-8 2 2. 6-7 7-8 7-9 8-9 6.