Operations Research MCQ Quiz!

10 Questions | By Juanahernande | Last updated: Jul 10, 2022 | Total Attempts: 2006

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Can you crack down all the questions of this "Operations Research MCQ Quiz!? " Try your luck, buddy! Operations research (OR) is meant by an analytical method that is used for problem-solving and decision-making that is also useful in the management of organizations. In operations research, problems have to be broken down into basic components, and then these problems are solved in defined steps by mathematical analysis. So, should we proceed with the quiz as you have understood the basics? Let's go!

Questions and Answers

1.

Which of these is not correct?
- A.
  
  PERT is probabilistic in nature.
- B.
  
  CPM is deterministic in nature.
- C.
  
  CPM is event-oriented.
- D.
  
  CPM and PERT use similar terminology but were developed independently.
2.

Point out what is not required While considering precedence relationships.
- A.
  
  All the predecessor(s) of an activity should be focused on.
- B.
  
  Only immediate predecessor(s) should be focussed on.
- C.
  
  Redundant predecessors should be dropped.
- D.
  
  Care must be taken that there is no logical fault in it as may result in the formation of a loop.
3.

Mark the wrong statement.
- A.
  
  The head event of activity also represents the tail event of its predecessor activity.
- B.
  
  Nodes should be numbered in such a way that, for every activity, the initial node bears a lower number while the final node bears a higher number.
- C.
  
  The event marking the start of an activity is called head event, and the event marking the end is termed a tail-event.
- D.
  
  In drawing a network, it may happen that A precedes B, B precedes C, and C precedes A.
4.

It is known that in a project, activity 4-6 has a duration of six days and a total float of three days. The E and L times at node 4 are 8 and 11, respectively, while, at node 6, both are equal to 17. Which of the following is not a true statement about 4-6?
- A.
  
  Its free float is three days.
- B.
  
  Its independent float is 0.
- C.
  
  It is a critical activity.
- D.
  
  The ES of this activity is 8.
5.

Mark the wrong statement.
- A.
  
  All activities on a critical path are critical activities.
- B.
  
  A project network may have none, one, or more critical paths.
- C.
  
  A delay in critical activity surely delays the completion of project.
- D.
  
  Each critical activity has identical earliest and the latest start times.
6.

Pick the wrong relationship:
- A.
  
  Interfering float = Total float – Free float
- B.
  
  Total float =Free float + Independent float
- C.
  
  Total float ≥ Free float ≥ Independent float
- D.
  
  Free float = Total float – Head event slack
7.

Given, expected duration of project = 47 days, variance = 9 days. What is the probability of not completing the project in 50 days? Z : 0.33 1.0Area : 0.1293 0.3413
- A.
  
  0.6293
- B.
  
  0.8413
- C.
  
  0.1587
- D.
  
  0.3707
8.

Given, expected duration of project = 47 days, variance = 9 days. Expected Time for Project Completion: 50 days Z : 0.33 1.0Area : 0.1293 0.3413 What is the probability of completing the project within three days more or less than the expected time?
- A.
  
  0.5000
- B.
  
  0.6826
- C.
  
  0.2586
- D.
  
  0.3174
9.

Which of the following is not true about crashing?
- A.
  
  Always focus on critical path and choose between critical activities only.
- B.
  
  Crashing cost per day = (Crash cost – Normal cost) / (Normal time – Crash time).
- C.
  
  Of all activities of the project, choose the activity with the least crashing cost.
- D.
  
  If there are multiple the critical paths, crash them all.
10.

CPM is:
- A.
  
  Critical Project Management
- B.
  
  Critical Path Management
- C.
  
  Critical Path Method
- D.
  
  Crash Project Method