Building Construction
The window which projects outside a room of a building for admitting more light and air, is known

Casement window
Dormer window
Bay window
Lantern window

ANSWER DOWNLOAD EXAMIANS APP

Building Construction
Rotary drilling

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

ANSWER DOWNLOAD EXAMIANS APP