Building Construction
Pick up the correct specification of one-room quarters generally adopted from the following:

All listed here
Six quarters in a row
The size of room is either 3.5 m × 3 m or 4.2 m × 2.5 m
The front verandah is kept 2 m wide

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Building Construction
Rotary drilling

Is not suitable for deposits containing very coarse gravel
Is not economical for holes of less than 10 cm
All listed here
Hinders the ground water observations and permeability test

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