quiz on PERT

PERT analysis is based on

• optimistic time

• pessimistic time

• most likely time

• All of above

The critical path

• Is a path that operates from the starting node to the end node

• Is a mixture of all paths.

• Is the longest path

• Is the shortest path

Activities A, B, and C are the immediate predecessors for Y activity. If the earliest finish times for the three activities are 12, 15, and 10, then the earliest start time for Y will be

• 10

• 15

• 12

• 2

PERT technique is useful for

• small projects

• large and complex projects

• research and development projects

• deterministic activities

If the optimistic time, pessimistic time and most likely time for activity A are 4,8 and 6 respectively and for activity B are 5,9 and 5.5 respectively then

• expected time of activity A is greater than the expected time of activity B

• expected time of activity B is greater than the expected time of activity A

• expected time of both activites A and B are same.

• none of the above

If an activity has its optimistic, most likely and pessimistic times as 2,3 and 7 respectively, then its expected time and variance are respectively

• 3.5 and 5/6

• 5 and 25/36

• 3.5 and 25/36

• 4 and 5/6

A father notes that when his teenage child uses the mobile, he/she takes not less than 6 minutes for a call and sometimes as much as an hour. Fifteen minutes calls are more frequent calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be

• 15 minutes

• 20.143 minutes

• 21 minutes

• 27 minutes

A father notes that when his teenage child uses the mobile, he/she takes not less than 6 minutes for a call and sometimes as much as an hour. Fifteen minutes calls are more frequent calls of any other duration. If these phone calls were an activity in PERT project, then what will be the variance?

• 81

• 54

• 36

• 9

Slack time refers to

• an event

• an activity

• both event and activity

• all of above

The process of incorporating changes and rescheduling is called

• resource levelling

• resource smoothing

• updating

• critical path