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Q: In ............ masonry, stones are laid without any regular courses.
  • A. Ashlar
  • B. Random rubble
  • C. Coursed rubble
  • D. None of the above
Correct Answer: Option B - Random rubble masonry :- used of undressed, rough stone. In Random rubble masonry stones are laid without any regular courses. Throating– A small groove is cut on the underside of projecting chhajjas, cornices, coping to discharge the rain water without trickling down to the wall, is called throating. Weathering– A slope is provided to the top surface to centre used for coping, cornice and sill to drain off the water immediately. This is known as weathering.
B. Random rubble masonry :- used of undressed, rough stone. In Random rubble masonry stones are laid without any regular courses. Throating– A small groove is cut on the underside of projecting chhajjas, cornices, coping to discharge the rain water without trickling down to the wall, is called throating. Weathering– A slope is provided to the top surface to centre used for coping, cornice and sill to drain off the water immediately. This is known as weathering.

Explanations:

Random rubble masonry :- used of undressed, rough stone. In Random rubble masonry stones are laid without any regular courses. Throating– A small groove is cut on the underside of projecting chhajjas, cornices, coping to discharge the rain water without trickling down to the wall, is called throating. Weathering– A slope is provided to the top surface to centre used for coping, cornice and sill to drain off the water immediately. This is known as weathering.