Building Materials(Engineering > Civil Engineering ) Questions and Answers

Question 1. Which one of the following polymers is obtained from condensation polymerization?
  1.    Phenol formaldehyde
  2.    Carbamide
  3.    Melamine-formaldehyde
  4.    All of these
Explanation:-
Answer: Option D. -> All of these
Question 2. The rocks in which argil (or clay) predominates, are called
  1.    Siliceous rocks
  2.    Argillaceous rocks
  3.    Calcareous rocks
  4.    Igneous rocks
Explanation:-
Answer: Option B. -> Argillaceous rocks
Question 3. The trunk of tree left after cutting all the branches is known as
  1.    Log
  2.    Batten
  3.    Plank
  4.    Baulk
Explanation:-
Answer: Option A. -> Log
Question 4. A badly mixed cement concrete results in
  1.    Segregation
  2.    Bleeding
  3.    Honey combing
  4.    None of these
Explanation:-
Answer: Option C. -> Honey combing
Question 5. Minimum thickness of wall where single Flemish bond can be used is
  1.    Half brick thick
  2.    One brick thick
  3.    One and a half bricks thick
  4.    Two bricks thick
Explanation:-
Answer: Option C. -> One and a half bricks thick
Question 6. The commonly used base for iron and steel work, is
  1.    Red lead
  2.    Zinc white
  3.    White lead
  4.    Titanium white
Explanation:-
Answer: Option A. -> Red lead
Question 7. When a brick is immersed in water for 24 hours and then dried, if
  1.    No grey or white deposits appear on the surface, the brick is free from soluble salts
  2.    10 percent surface is covered with grey or white deposits, the brick has slight efflorescence
  3.    50 percent surface is covered with grey or white deposits, the brick has serious efflorescence
  4.    All the above
Explanation:-
Answer: Option D. -> All the above
Question 8. In a mortar, the binding material is
  1.    Cement
  2.    Sand
  3.    Surkhi (brick-dust)
  4.    Cinder
Explanation:-
Answer: Option A. -> Cement
Question 9. Lime mortar is generally made with
  1.    Quick lime
  2.    Fat lime
  3.    Hydraulic lime
  4.    Plain lime
Explanation:-
Answer: Option C. -> Hydraulic lime
Question 10. Advantage of a clamp compared to a kiln for burning bricks is that
  1.    It takes less time for burning
  2.    It gives more output of first class bricks
  3.    It has less initial cost
  4.    It is suitable when bricks are required in large numbers
Explanation:-
Answer: Option C. -> It has less initial cost
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