Grader is used mainly for___________________?
		A. trimming and finishing
B. shag and trimming
C. finishing and shag
D. finishing, shag and trimming
		A. trimming and finishing
B. shag and trimming
C. finishing and shag
D. finishing, shag and trimming
		A. small projects
B. large and complex projects
C. research and development projects
D. deterministic activities
		A. 20 kg/tonne
B. 30 kg/tonne
C. 40 kg/tonne
D. 50 kg/tonne
		A. an activity
B. an event
C. both event and activity
D. none of the above
		A. normal durations for all the activities
B. crash durations for all activities
C. crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities
D. crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities
		A. crash time
B. normal time
C. optimistic time
D. between normal time and crash time
		A. increase in rates of only important materials
B. variation in cost in materials element, labour element and petrol-oil-lubricant element
C. variation in total cost of the project on an ad hoc basis
D. rate of inflation