Independent float of an activity (i, j) is denoted by IF (i, j). The earliest occurrence times of i and j are denoted by Ei and Ej respectively. The latest occurrence times of i and j are denoted by Li and Lj respectively. D (i, j) indicates the duration of the activity.a)Ej andndash; Li - D (i, j)b)Lj andndash; Ei - D (i, j)c)Lj andndash; Ej - D (i, j)d)Ej - EiCorrect answer is option 'A'. Can you explain this answer?

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Independent float of an activity (i, j) is denoted by IF (i, j). The earliest occurrence times of i and j are denoted by E_i and E_j respectively. The latest occurrence times of i and j are denoted by L_i and L_j respectively. D (i, j) indicates the duration of the activity.

a)
E_j – L_i - D (i, j)
b)
L_j – E_i - D (i, j)
c)
L_j – E_j - D (i, j)
d)
E_j- E_i

Correct answer is option 'A'. Can you explain this answer?

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Independent float of an activity (i, j) is denoted by IF (i, j). The e...

Float:

Float indicates the time by which, starting or finishing of an activity can be delayed without completion time.
Float is associated with an activity and is analogous to the term slack.

Independent Float:

It is the amount of time by which an activity can be delayed when all the preceding activities are completed as late as possible and all succeeding activities started as early as possible.
Independent float can also be defined as the excess of minimum available time over the required activity duration.
Consider a partial network as below
If activity c-d is under consideration, and activity b-c finishes as its latest possible time T^c_L and succeeding activity j-k start at its earliest time Tⁱ_E.
Then activity i-j can take up any duration from t" to ( TT) without affecting any activity of the project.
The difference between (T^j_E-Tⁱ_L) and t is known as Independent float for activity i-j Independent float for i-j,

Solution:
F_ID = (T^j_E - Tⁱ_L) - tⁱ_j
F_ID = E_j – L_i - D (i, j)

Answered by Engineers Club · View profile

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Independent float of an activity (i, j) is denoted by IF (i, j). The earliest occurrence times of i and j are denoted by Ei and Ej respectively. The latest occurrence times of i and j are denoted by Li and Lj respectively. D (i, j) indicates the duration of the activity.a)Ej – Li - D (i, j)b)Lj – Ei - D (i, j)c)Lj – Ej - D (i, j)d)Ej - EiCorrect answer is option 'A'. Can you explain this answer?

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