31. Crash project duration is obtained by summing the
Normal durations for all the activities
Crash durations for all activities
Crash durations for all the activities along the critical path obtained by taking into account the normal duration for all the activities
Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities.
Correct answer: (D) Crash durations for all the activities along the critical path obtained by taking into account the crash duration for all the activities.
32. Critical path
Is always longest
Is always shortest
May be longest
May be shortest
Correct answer: (A) Is always longest
33. Critical path lies along the activities having total float
Positive
Negative
Zero
Same
Correct answer: (C) Zero
34. Critical path method
Is an improvement upon bar chart method
Provides a realistic approach to daily problems
Avoids delays which are very common in bar charts
All the above
Correct answer: (D) All the above
35. Critical Path Net Work helps an engineer
To concentrate his attention on critical activities
To divert the resources from non-critical advanced activities to critical activities
To be cautious for avoiding any delay in the critical activities to avoid delay of the whole project
All the above
Correct answer: (D) All the above
36. During the construction period, price variation clause in contracts caters to
Increase in rates of only important materials
Variation in cost in materials element, labour element and petrol-oil-lubricant element
Variation in total cost of the project on an ad hoc basis
Rate of inflation
Correct answer: (B) Variation in cost in materials element, labour element and petrol-oil-lubricant element
37. Earliest finish of an activity is always
Greater than earliest event time of the following node
Less than earliest event time of the following node
Less than or equal to earliest event time of the following node
Greater than or equal to earliest event time of the following node
Correct answer: (C) Less than or equal to earliest event time of the following node
38. Economic saving of time results by crashing
Cheapest critical activity
Cheapest noncritical activity
Costliest critical activity
Costliest noncritical activity
Correct answer: (A) Cheapest critical activity
39. Final technical authority of a project lies with
Assistant Engineer
Executive Engineer
Superintending Engineer
Chief Engineer
Correct answer: (D) Chief Engineer
40. 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