only Q1

1. The construction of a wood frame house can be simply described as six tasks. First is the foundation work, which takes four weeks. Then the house is framed, including the roof, which takes six weeks. Plumbing, heating and air conditioning, and wiring each take two weeks. Last, the finishing works (exterior and interior wall cladding, floor covering, cabinetry, electrical and plumbing fixtures, and painting) takes six weeks. (a) Are the times given for the six tasks "effort" or "elapsed"times? Explain the difference between these two terms. Under what circumstances is one longer than the other? (b) What is meant by precedence? State the prece- dence for each of the six tasks. (c) Draw a bar chart showing the sequencing and duration of the six tasks. (d) If you wanted to reduce the overall construction time but could shorten only one task, which tasks could you consider? Which tasks, if shortened individually, would have no impact on the overall schedule? Which tasks are on the critical path and which are not? How could the task to frame the house be shortened? 2. Consider the design of the flicker analyzer described in Chapter 4, Section 4.6, with block diagram