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Test: CPM & PERT - 1 - Civil Engineering (CE) MCQ


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10 Questions MCQ Test GATE Civil Engineering (CE) 2025 Mock Test Series - Test: CPM & PERT - 1

Test: CPM & PERT - 1 for Civil Engineering (CE) 2024 is part of GATE Civil Engineering (CE) 2025 Mock Test Series preparation. The Test: CPM & PERT - 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: CPM & PERT - 1 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: CPM & PERT - 1 below.
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Test: CPM & PERT - 1 - Question 1

Consider the following statements:
In the critical path method of construction planning. Free float can be
1. Greater than total float
2. Greater than Independent Float
3. Equal to Total Float
4. Less than Independent Float
Float Of these statements

Detailed Solution for Test: CPM & PERT - 1 - Question 1

The critical path is the sequence of activities that represents the longest path through a project. It determines the shortest possible project duration.

The critical path can be easily determined with the help of total float calculations. The activities on the critical path are those activities that have total float equal to zero

i.e. TF = 0.

Independent Float

  • It refers to the amount of time by which the start of an activity is can be delayed without affecting EST of any immediately following activity
  • It is given by IF = FF – S 
  • i.e. FF = IF + Si
  • If S= 0 → FF = IF = 0
  • If S≠ 0 FF > IF
Test: CPM & PERT - 1 - Question 2

In a CPM network the activity is non critical if

Test: CPM & PERT - 1 - Question 3

Activity ‘C' follows activity 'A' and activity 'D' follows activities 'A' and 'B'. The correct network for the project is

Test: CPM & PERT - 1 - Question 4

Consider the following statements:
The critical path in a network plan of a project
1. helps in planning efficient time schedule
2. indicates the shortest path in time 
3. helps in crashing the project judiciously
4. helps in encouraging-discipline in execution
Which of these statements are correct?

Detailed Solution for Test: CPM & PERT - 1 - Question 4
  1. Helps in planning efficient time schedule:

    • The critical path method (CPM) is used to identify the longest sequence of tasks in a project that must be completed on time for the project to be finished by its deadline. Knowing the critical path helps in planning an efficient time schedule by focusing on these critical tasks.
  2. Indicates the shortest path in time:

    • This statement is incorrect. The critical path actually represents the longest path through the project, not the shortest. It determines the minimum project duration by identifying the sequence of dependent tasks that have the longest total duration.
  3. Helps in crashing the project judiciously:

    • Crashing a project involves adding resources to critical path tasks to complete them more quickly, thus reducing the project duration. Identifying the critical path is crucial for effective crashing, as only tasks on the critical path will affect the overall project completion time.
  4. Helps in encouraging discipline in execution:

    • By highlighting the tasks that cannot be delayed without affecting the project completion date, the critical path helps enforce discipline in execution. Project managers and team members can focus their attention on critical tasks to ensure they stay on track.

Therefore, the correct answer is: 1, 3 and 4

Test: CPM & PERT - 1 - Question 5

A network of seven activities is shown in the diagram given above. The respective activity durations are shown beside the arrows. Which one of the following is the total float in AB, the total float in CE and free float in EF, respectively?

Detailed Solution for Test: CPM & PERT - 1 - Question 5

Solving the network will give earliest occurrence time (TE) and latest finish time (TL) as below:

Test: CPM & PERT - 1 - Question 6

Activity on node type of network analysis involves

Test: CPM & PERT - 1 - Question 7

= Tij represent

Detailed Solution for Test: CPM & PERT - 1 - Question 7

LF - EF = total float.

Test: CPM & PERT - 1 - Question 8

There are four consecutive activities in a simple linear network, each with mean duration μ and first two with '2k'as the standard deviation, third with 'k' as the standard deviation and fourth has ‘zero’ standard deviation. The overall project duration through these activities is likely to be in the range

Detailed Solution for Test: CPM & PERT - 1 - Question 8

Test: CPM & PERT - 1 - Question 9

The time by which a particular activity can be delayed without affecting the preceding and succeeding activities is known as

Detailed Solution for Test: CPM & PERT - 1 - Question 9

Total float affects both preceding and succeeding activities.
Free float affects only succeeding activities.

Test: CPM & PERT - 1 - Question 10

Which of the following is not a PERT event?

Detailed Solution for Test: CPM & PERT - 1 - Question 10

Work is going on hence it is an activity.

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