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

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Construction Planning and Management
At a work site, statistical quality control of concrete means

Reduction in wastage of inspection costs
Measurement of risks to eliminate failures
Reduction in costs for the removal of defects
Applying the theory' of probability to sample testing or inspection

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Construction Planning and Management
Latest start of an activity is always

greater than or equal to latest event time of preceding node
less than or equal to latest event time of preceding node
equal to latest event time of preceding node
less than latest event time of preceding node

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