Building Materials(Civil Engineering ) Questions and Answers
Question 1. Specific gravity for most of the building stones lies between
1.5 to 2.0
2.0 to 2.5
2.5 to 3.0
3.0 to 3.5
Explanation:-
Answer: Option C. -> 2.5 to 3.0
Question 2. Name the type of cement from the following for canal linings:
Sulphate resisting cement
Rapid hardening cement
Quick setting cement
Pozzolana cement
Explanation:-
Answer: Option A. -> Sulphate resisting cement
Question 3. For melting one tonne of cast iron
700 m3 air is required
20 kg limestone is required
One quintal coke is required
All the above
Explanation:-
Answer: Option D. -> All the above
Question 4. A volatile substance added to a paint to make its application easy and smooth, is known as
Base
Solvent
Vehicle
None to these
Explanation:-
Answer: Option B. -> Solvent
Question 5. Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar.
(i) and (iv)
(ii) and (iii)
(i) and (ii)
(iii) and (iv)
Explanation:-
Answer: Option B. -> (ii) and (iii)
Question 6. Stucco paints are suitable for
Stone masonry
Brick walls
Both (A) and (B)
Neither (A) nor (B)
Explanation:-
Answer: Option C. -> Both (A) and (B)
Question 7. For the manufacture of plywood, veneers are placed so that grains of adjacent veneers
Run at right angles
Parallel
Inclined at 45°
Inclined at 60°
Explanation:-
Answer: Option A. -> Run at right angles
Question 8. Gypsum consists of
H2S and CO2
CaSO4 and H2O
Lime and H2O
CO2 and calcium
Explanation:-
Answer: Option B. -> CaSO4 and H2O
Question 9. Depending on the chemical composition and mechanical properties, iron may be classified as
Cast iron
Wrought iron
Steel
All the above
Explanation:-
Answer: Option D. -> All the above
Question 10. The most important constituent of an oil paint, is
