1. As per BIS 1077-1957, the minimum crushing strength of bricks should be
B) > 3.5 MPa
2. M20 grade of concrete has the following proportion of the ingredients of cement, sand and coarse aggregates.
B) 1: 1.5: 3
3. Mortar used for construction work in waterlogged areas & exposed positions is of proportion
C) 1 : 3
4. Indentations on the bricks provided to form a key for holding the mortar is called as
C) Frog
5. Stone extending throughout the thickness of the wall is called
B) Through stone
6. Masonry built of carefully dressed stones & having very thin joints is termed as
D) Ashlar Masonry
7. Marble is a
C) Metamorphic rock
8. Granite is an example of
D) Igneous rock
9. Shale is an example of
C) Argillaceous rocks
10. For one cubic meter of brick masonry, the number of modular bricks needed is
C) 500 to 550
11. A first class brick should not absorb water more than _______ of its own dry weight after 24 hours of immersion in cold water
B) 15%
12. Unit weight of common burnt clay bricks used as building material as per IS : 875 (Part I) – 1987 is _______
A) 1600 to 1920 kg/m³
13. The size of the standard modular brick is
C) 19 cm × 9 cm × 9 cm
14. The indentation provide in a face of the brick is called
C) frog
15. Vitrified tiles and ceramic tiles testing is done in accordance to _______
A) IS 15622-2006
