If the gross vehicle weight of a truck is 30 t and rolling resistance is 30 kg/tonne, then the tractive effort required to keep the truck moving at a uniform speed is__________________?

A. on all the activities
B. on all the activities lying on the critical path
C. only on activities lying on the orginal critical path and having flatter cost slopes
D. on original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope

A. 50%
B. 84.1%
C. 99.9%
D. 100%

A. an activity
B. an event
C. both event and activity
D. none of the above

Consider the following activities in a building construction?
1. Concreting of roof slabs
2. Brick-jelly lime concrete terracing
3. Erection of form work for slab
4. Construction of parapet wall in terrace
A. 1,3,2,4
B. 3,1,4,2
C. 3,1,2,4
D. 1,3,4, 2

A. equal to X
B. more than X
C. less than X
D. any of the above

Consider the following features/factors
1. Projects are of the non-repetitive type.
2. Time required need not be known.
3. Time required is known precisely.
4. Events have been established for planning.
5. Emphasis is given to activities of project
A. 1,2 and 4
B. 3,4 and 5
C. 1,3 and 4
D. 1,2 and 5