BUILDING MATERIALS MCQS SET 45

BUILDING MATERIALS MCQS SET 45

1. The commonly used colour pigment in paints, is
(A) Ambers
(B) Carbon black
(C) Iron oxide
(D) All the above
Answer: Option D

2. The variety of pig iron used for the manufacture of steel by Bessemer process, is
(A) Bessemer pig
(B) Grey pig
(C) White forge pig
(D) Mottled pig
Answer: Option A

3. Vanadium steel is generally used for
(A) Railway switches and crossing
(B) Bearing balls
(C) Magnets
(D) Axles and springs
Answer: Option D

4. A badly mixed cement concrete results in
(A) Segregation
(B) Bleeding
(C) Honey combing
(D) None of these
Answer: Option C

5. Chemically, marble is known as
(A) Metamorphic rock
(B) Argillaceous rock
(C) Calcareous rock
(D) Siliceous rock
Answer: Option C

6. The filler used in plastic bitumen, is
(A) Shale powder
(B) Talc powder
(C) Asbestos powder
(D) Plastic powder
Answer: Option C

7. Mastic asphalt is generally used for
(A) Damp proof course
(B) Water proof layer
(C) Partition walls
(D) Both (A) and (B)
Answer: Option D

8. The most fire resistant paints are:
(A) Enamel paints
(B) Aluminium paints
(C) Asbestos paints
(D) Cement paints
Answer: Option C

9. A pug mill is used for
(A) Softening brick earth
(B) Moulding brick earth
(C) Tempering brick earth
(D) Providing brick earth
Answer: Option C

10. A good brick earth should contain:
(A) About 20% to 30% of alumina
(B) About 50% to 60% of silica
(C) Not more than 5% of lime
(D) All the above
Answer: Option D