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WorksheetsDay 86-Dec 23-worksheet-Btech-PERT&CPM
Total questions: 15
Worksheet time: 10mins
In PERT analysis, the expected time of an activity is calculated using the formula:
(to+tm+tp)/3
(to+tp)/2
(to+4tm+tp)/6
(to+3tm+tp)/5
Which of the following correctly represents the standard deviation of an activity time in PERT?
tp−to
(tp−to)/3
(tp−to)/6
(tp−tm)/6
In a PERT network, if an event has multiple incoming activities, the earliest expected time of the event is obtained by:
Taking the minimum of incoming times
Taking the average of incoming times
Taking the maximum of incoming times
Taking the sum of incoming times
Slack of an event is defined as the difference between:
EST and EFT
LST and LFT
Latest allowable time and earliest expected time
Total float and free float
An activity having zero float is classified as:
Sub-critical activity
Super-critical activity
Dummy activity
Critical activity
Which of the following floats represents delay without affecting the succeeding activity?
Total float
Free float
Independent float
Interfering float
CPM is best suited for:
Research-oriented projects
Probabilistic projects
Repetitive construction projects
In PERT, each activity is assumed to follow a beta probability distribution.
True
False
Negative slack indicates that the project is ahead of schedule.
True
False
Assertion (A): PERT uses three time estimates for each activity. Reason (R): PERT follows a deterministic approach for project scheduling. Choose the correct option.
A is true, R is true and R explains A
A is true, R is false
A is false, R is true
A is false, R is false
PERT stands for (a) .
The pessimistic time represents the (a) possible duration under worst conditions.
The earliest time by which an event may occur is called (a) .
Slack equal to zero indicates a (a) event.
An activity with negative float is known as a (a) activity.
