Construction Planning and Management
Consider the following operations:1. Drilling2. Blasting3. Mucking4. Placing steel5. Placing concreteThe correct sequence of these operations in tunnel construction is

1, 3, 4, 2, 5
1, 2, 3, 4, 5
1, 2, 4, 3, 5
1, 3, 2, 4, 5

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

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

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