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In a PERT network, the activities on the critical path are a, b and c. The standard deviations of the durations of these activities are 2, 2 and 1 respectively. The variance of the project duration is

Correct Answer: 9

Statement I The critical path has been defined as the longest duration path between the first and the last nodes of a project.
Statement II The duration of a project is not always the same as the duration of its critical path.
Statement III The earliest start and finish times of an activity are based on the condition that every activity will not be started and finished as early as possible.
Find the correct answer for given statements being correct or incorrect.

A PERT network has three activities on critical path with mean time 3, 8 and 6 and standard deviations 1, 2 and 2 respectively. The probability that the project will be completed in 20 days is

From the given below statements, find the incorrect statement. i. A critical path has zero float. ii. A critical path has both critical and non-critical activities. iii. A critical path is the longest path and consumes maximum time and resources.

A project network comprises five activities as shown below. The activity durations. in days. are as indicated. Crashing of any activity costs Rs. 1000 per day. If the project is crashed to the shortest possible duration without changing the critical path the total crashing coso in Rs. is
Mine System Engineering mcq question image

The following project network is given with arrows as activities and the numbers by each arrow representing job durations in days. The network has two dummy activities D1 and D2. The minimum completion time of the project in days is
Mine System Engineering mcq question image

You are the administrator of a Windows 2000 Server computer. The server contains one network adapter and is a file and print server for critical company resources. You install a second network adpater in the server and connect it to the same network subnet as the first adapter. You want to ensure that the first adapter is used for all network traffic and the second adapter is used only if the first adapter fails or is disconnected from the network. You also want to ensure that the server always has network connectivity even if one network adapter fails. What should you do?

Which of the following activities should be shown separately in the cash flow statement prepared as per accounting standard-3?
I. Cash flow from borrowing activities.
II. Cash flow from operating activities.
III. Cash flow from financing activities.
IV. Cash flow from investing activities.
V. Cash flow from miscellaneous activities.

Which of the following can help apply the efforts of non-critical activities on critical activities to reduce the project duration?

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

Consider the following statements.
1. In PERT, it is assumed that the activity times follow the beta distribution.
2. In CPM, two time and cost estimates are made for each activity, which are called the optimistic and pessimistic estimates.
3. Time is the only variable used in PERT.
4. While in PERT the emphasise is on event, in CPM the emphasise is on activity.