 node to the end node.
B. It is a mixture of all the paths
C. It is the longest path
D. It is the shortest pathAnswer: CQuestion 6What is the completion of a CPM network diagram activity commonly known as?
A. Connector B. Event C. Node D. All of the aboveAnswer: DQuestion 7Activities A, B, and C are the immediate predecessors for Y activity. If the earliest finishing time for the three activities are 12, 15, and 10, then what will be the earliest starting time for Y?
A. 10 B. 15 C. 12
D. Cannot be determinedAnswer: BQuestion 8Activities P, Q, and R instantly follow activity M, and their current starting times are 12, 19, and 10. So, what is the latest finishing time for activity M?
A. 11 B. 10 C. 18
D. Cannot be determinedAnswer: AQuestion 9Activity in a network diagram is represented by?
A. Rectangles B. Arrows C. Squares D. CirclesAnswer: BQuestion 10What happens when a project is scheduled by CPM?
A. A project is divided into various activities
B. Required time for each activity is established
C. A sequence of various activities is made according to their importance
D. All of the aboveAnswer: D
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[Solved] The immediate predecessors of activity D are A, B, and C. Gi
Explanation: Earliest Start Time (EST) The earliest start time for an activity is the earliest time by which it can commence. This is naturally equal to the e
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The immediate predecessors of activity D are A, B, and C. Given the earliest finish time of activity A, B and C are respectively 10, 12 and 16 days, the earliest start time of activity D will be:
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10 days 12 days 38 days 16 days
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Option 4 : 16 days
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Download Solution PDFExplanation:Earliest Start Time (EST)
The earliest start time for an activity is the earliest time by which it can commence. This is naturally equal to the earliest event time associated with the tail of the activity arrow. It is abbreviated by EST.
If the activity is denoted i - j, and if the earliest event time at its tail is TiE, we have EST = TiEEarliest Finish Time (EFT)
If an activity proceeds from its early start time and takes the estimated duration for completion, then it will have an early finish. Hence earliest finish time (EFT) for an activity is defined as the earliest time by which it can be finished. This is evidently equal to the earliest start time plus estimated duration of the activity:
EFT = earliest start time + activity duration = TiE + tijEarliest start time of activity D = Max (All the earliest finish times of activities ending at D)= Max (Earliest finish time of A, B, and C)
= Max (10,12, 16)Earliest start time of activity D = 16 Days.
Additional InformationLatest Start Time (LST)
Latest start time for an activity is the latest time by which an activity can be started without delaying the completion of the project. For ‘no delay’ condition to be fulfilled, it should be naturally equal to the latest finish time (LFT) minus the activity duration.
∴ LST = LFT - Activity duration = TiL - tijLatest Finish Time (LFT)
The latest finish time for an activity is the latest time by which an activity can be finished without delaying the completion of the project. Naturally, the latest finish time for an activity will be equal to the latest allowable occurrence time for the even