Building Materials Objective type Questions – Set 27

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Q1. The initial setting time of lime-pozzolana, is


(A) 30 minutes
(B) 60 minutes
(C) 90 minutes
(D) 120 minutes

Answer: (D) 120 minutes

Q2. The filler used in plastic bitumen, is

(A) Shale powder
(B) Talc powder
(C) Asbestos powder
(D) Plastic powder

Answer: (C) Asbestos powder

Q3. Lime concrete is generally used for

(A) Wall foundations
(B) Flooring at ground level
(C) Both (A) and (B)
(D) Neither (A) nor (B)

Answer: (B) Flooring at ground level

Q4. The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout

(A) The monsoon
(B) The winter
(C) The summer
(D) None of these

Answer: (A) The monsoon

Q5. Mastic asphalt is generally used for

(A) Damp proof course
(B) Water proof layer
(C) Partition walls
(D) Both (A) and (B)

Answer: (D) Both (A) and (B)

Q6. Bituminous fells are used for

(A) Covering A.C. sheets
(B) Covering sloping roofs
(C) D.P.C.
(D) None to these

Answer: (A) Covering A.C. sheets

Q7. If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

(A) Bessemer pig
(B) Grey or foundry pig
(C) White or forge pig
(D) Mottled pig

Answer: (C) White or forge pig

Q8. The most fire resistant paints are:

(A) Enamel paints
(B) Aluminium paints
(C) Asbestos paints
(D) Cement paints

Answer: (C) Asbestos paints

Q9. Quick setting cement is produced by adding

(A) Less amount of gypsum in very fine powdered form
(B) More amount of gypsum in very fine powdered form
(C) Aluminium sulphate in very fine powdered form
(D) Pozzolana in very fine powdered form

Answer: (C) Aluminium sulphate in very fine powdered form

Q10. Depending on the chemical composition and mechanical properties, iron may be classified as

(A) Cast iron
(B) Wrought iron
(C) Steel
(D) All the above

Answer: (D) All the above

Q11. A pug mill is used for

(A) Softening brick earth
(B) Moulding brick earth
(C) Tempering brick earth
(D) Providing brick earth

Answer: (C) Tempering brick earth

Q12. Pick up the correct statement from the following:

(A) The substance which consists of one primary chemical, is known as monomer
(B) The polymer consists of thousands of monomers joined together
(C) The polymer molecule is called macro-molecule
(D) All the above

Answer: (D) All the above

Q13. The main constituent of fly-ash, is

(A) Aluminium oxide
(B) Silica
(C) Ferrous oxide
(D) All of these

Answer: (D) All of these

Q14. 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: (D) All the above

Q15. The normal curing period for lime mortar, is:

(A) 1 day
(B) 3 days
(C) 7 days
(D) 10 days

Answer: (C) 7 days

Building Materials MCQ SET wise with Answers

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