Building Construction
The process of keeping concrete moist for a certain period after its finishing, is known as

Finishing of concrete
Placing of concrete
Compaction of concrete
Curing of concrete

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Building Construction
Negative skin friction

Neither (A) not (B)
Both (A) and (B)
Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile
Develops due to lowering of ground water

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