Questions
1
For a given activity, the optimistic time, pessimistic time and the most probable estimates are 5, 17 and 8 days respectively, The expected time is
Answer: 9 days
3
For the network shown in the given figure, the expected time for the activity
Answer: All the above
4
At a work site, statistical quality control of concrete means
Answer: Applying the theory' of probability to sample testing or inspection
6
During the construction period, price variation clause in contracts caters to
Answer: Variation in cost in materials element, labour element and petrol-oil-lubricant element
7
The time by which a particular activity can be delayed without affecting the preceding and succeeding activities is known as
Answer: Independent float
9
Which of the following earth moving machines has the shortest cycle time?
Answer: Dipper shovel
10
Which of the following surfaces will give highest rolling resistance for a rubber tyred vehicle?
Answer: Loose sand
12
Free float is mainly used to
Answer: Identify the activities, which can be delayed without affecting the total float of succeeding activity
13
In PERT analysis, the time estimates of activities and probability of their occurrence follow
Answer: Beta distribution curve
14
If the output of a dragline for 90° angle of swing at optimum depth of cut is X, then the output for 120° angle of swing at 120 % of optimum depth of cut will be
Answer: Less than X
15
For which of the following materials, the output of power shovels for a fixed shovel size will be maximum
Answer: Moist loam
16
Preliminary project report for a road project must contain
Answer: The soil survey, traffic survey, concept design and approximate cost
17
Sensitivity analysis is a study of
Answer: Change in output due to change in input
20
In time-cost optimization of a project, crashing is done.
Answer: On original critical activities and those that become critical at any stage of crashing in the order of ascending cost slope
