a. A gantry is to be built on the side of a steep hill, see picture.

b. After installing foundations for the identical towers A and B, a plinth has to be erected for tower B to compensate for the hill slope. On completion of the plinth a sighting is taken from its top to determine the height of base to be constructed for tower A to ensure final levelling. The foot of each tower is clamped in position by a series of securing plates fitted to base A and the plinth.

c. The activities to be considered with their estimated duration and manpower requirements are, see table:

d. Produce an activity on arrow network for the project identifying the critical path and determine the minimum duration of the project in days. Show total float and free float on your network.

e. Produce a tabulated, job oriented, analysis of the network.

f. Produce a bar chart representation of the network and a resource diagram for the project.

g. What will be the effect if the digging of foundation A (activity B) was extended to

i. 6 Days

ii. 8 days

h. If the maximum number of men available on any day was six, could the project be completed in the minimum time determined in part d assuming the digging of foundation A took the two days scheduled.

SPAN TOWER A TOWER B BASE A FOUNDATION A PLINTH HILLSIDE FOUNDATION B Serial Activity Duration (days) Men 3 Mark out site Dig foundation A Concrete foundation A Build base A Fit securing plates for A Erect tower A Dig foundation B Concrete foundation B Erect Plinth NA WNNNA W Fit securing plates for B Erect tower B Nm7 Erect span SPAN TOWER A TOWER B BASE A FOUNDATION A PLINTH HILLSIDE FOUNDATION B Serial Activity Duration (days) Men 3 Mark out site Dig foundation A Concrete foundation A Build base A Fit securing plates for A Erect tower A Dig foundation B Concrete foundation B Erect Plinth NA WNNNA W Fit securing plates for B Erect tower B Nm7 Erect span