BUILDING MATERIALS MCQS SET 51

BUILDING MATERIALS MCQS SET 51

1. For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
(A) 80 : 13 : 7
(B) 70 : 20 : 10
(C) 60 : 35 : 5
(D) None of these
Answer: Option A

2. Water paint is a
(A) White wash
(B) Colour wash
(C) Whiting
(D) All the above
Answer: Option D

3. Spirit varnish generally consists of
(A) Oil, wax and resin
(B) Alcohol, wax and turpentine
(C) Pigment and synthetic resin
(D) Spirit and shellac
Answer: Option D

4. Duco paints are
(A) Plastic paints
(B) Cellulose paints
(C) Emulsion paints
(D) Oil paints
Answer: Option D

5. Pick up the correct statement from the following:
(A) Melamine is obtained from calcium carbide
(B) Formaldehyde is prepared synthetically from methane
(C) The melamine when reacted with formaldehyde forms the melamine-formaldehyde resin
(D) All the above
Answer: Option D

6. Steel contains carbon approximately
(A) 1.50% to 5.6%
(B) 0.05% to 1.75%
(C) 0.25 %
(D) None to these
Answer: Option B

7. Based on its dry weight, a freshly felled tree may contain water
(A) 25 %
(B) 50 %
(C) 75 %
(D) 100 %
Answer: Option D

8. Forge pig may be converted to wrought iron by
(A) Rolling
(B) Pudding
(C) Shingling
(D) Refining
Answer: Option B

9. Pick up the correct statement from the following:
(A) Bull's trench kiln a trench excavated in ground
(B) Hoffman's kiln is constructed over ground
(C) Tunnel Kiln is constructed as a tunnel
(D) All the above
Answer: Option D

10. The softest rock is
(A) Marble
(B) Diamond
(C) Talc
(D) Quartz
Answer: Option C