Need entire solution with all steps

Please draw proper Network diagram

Problem 5t* The project consists of 10 activities with estimated duration in weeks as detailed below: i) Draw the network diagram ii) Find the critical path and its duration iii) If activity B requires a special crane to be hired, when should this be scheduled? iv) A check on the project at week 12 shows that activity F is running 2 weeks late, activity J would now take 6 weeks and equipment for B i.e. the crane would not arrive till the week 17. What effect would this have on the overall project duration