Test: CPM & PERT - 4 - Civil Engineering (CE) MCQ

A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and some 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. A dummy activity is artificially introduced in a network when necessary,
2. A dummy activity consumes some time.
3. A dummy activity is represented by a dotted arrow.
4. A dummy activity must necessarily be introduced in every network.
Which of the above statements are correct?

Match List-I (Activity type) with List-ll (Representation by) and select the correct answer using the codes given below the lists:

Codes:

With reference to the network shown in figure, which statement is incorrect?

Figure shows the network for a particular project which consists of four activities.

Normal duration time and crash time for each activity are given below:

The minimum time required for the completion of project is

In PERT analysis, event means

Consider the following statements:
1. Tests on cement paste to determine initial and final setting times are done at normal consistency condition.
2. Low heat cement has a high percentage of tricalcium aluminate.
3. High early strength Portland cement contains a larger percentage of tricafcium silicate and a lower percentage of dicalcium silicate.
Which of these statements are correct?