UPSC Civil Service Exam Questions - Engineering

Q1:

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 ?

A 1, 2 and 3

B 1 and 3

C 2, 3 and 4

D 1 and 2

ANS:B - 1 and 3

No answer description is available.