Construction Planning and Management
Consider the following activities in a building construction: 1. Concreting of roof slabs 2. Brick-jelly lime concrete terracing 3. Erection of form work for slab 4. Construction of parapet wall in terrace The correct sequence of these activities is

3, 1, 2, 4
1, 3, 2, 4
3, 1, 4, 2
1, 3, 4, 2

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Construction Planning and Management
Earliest finish of an activity is always

Less than or equal to earliest event time of the following node
Less than earliest event time of the following node
Greater than earliest event time of the following node
Greater than or equal to earliest event time of the following node

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