Building Materials and Construction Interview Questions – Set 11

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Q1. Bitumen is generally obtained from

(A) Organic material
(B) Synthetic material
(C) Petroleum product
(D) Coal

Answer:(C) Petroleum product

Q2. Paints with white lead base are suitable for painting of

(A) Wood work
(B) Iron work
(C) Both wood work and iron work
(D) None of the above

Answer: (A) Wood work

Q3. Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as

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

Answer: (A) Bessemer pig

Q4. The main constituent which imparts hydraulicity to hydraulic lime is

(A) Calcium oxide
(B) Silica
(C) Clay
(D) Water

Answer: (C) Clay

Q5. For a good building stone, its specific gravity should the greater than

(A) 1.5
(B) 1.7
(C) 2.2
(D) 2.7

Answer:(D) 2.7

Q6. Le-Chatelier’s device is used for determining the

(A) Setting time of cement
(B) Soundness of cement
(C) Tensile strength of cement
(D) Compressive strength of cement

Answer: (B) Soundness of cement

Q7. Calcination of iron ores is done

(A) To remove moisture
(B) To remove carbonic acid
(C) By roasting in heaps
(D) All the above

Answer: (D) All the above

Q8. Sandstone is a
(i) Sedimentary rock
(ii) Aqueous rock
(iii) Siliceous rock
The correct answer is

(A) Only (i)
(B) Both (i) and (ii)
(C) Both (i) and (iii)
(D) All (i), (ii) and (iii)

Answer: (D) All (i), (ii) and (iii)

Q9. Red short iron cracks when bent due to the presence of

(A) Sulphur
(B) Carbon
(C) Phosphorus
(D) Silicon

Answer: (A) Sulphur

Q10. Which of the following cements is suitable for use in massive concrete structures such as large dams?

(A) Ordinary Portland cement
(B) Low heat cement
(C) Rapid hardening cement
(D) Sulphate resisting cement

Answer: (B) Low heat cement

Q11. The rocks having alumina or clay as their major constituents are known as

(A) Siliceous rocks
(B) Argillaceous rocks
(C) Calcareous rocks
(D) Sedimentary rocks

Answer: (B) Argillaceous rocks

Q12. Percentage of carbon content in mild steel is

(A) Less than 0.25
(B) Between 0.25 and 0.7
(C) Between 0.7 and 1.5
(D) Greater than 1.5

Answer: (A) Less than 0.25

Q13. The commonly used thinner in oil paints, is

(A) Naphtha
(B) Turpentine
(C) Both (a) and (b)
(D) None the these

Answer:(C) Both (a) and (b)

Q14. The practical limit of moisture content achieved in air drying of timber is

(A) 5 %
(B) 15 %
(C) 25 %
(D) 35 %

Answer: (B) 15 %

Q15. The method of addition polymerization is used for obtaining:

(A) Polystyrene
(B) Polypropylene
(C) Polyvinylchloride
(D) All of these

Answer: (D) All of these

Building Materials MCQ with Answers

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