Building Materials Basic Questions - Set 07 - ObjectiveBooks
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Building Materials Basic Questions - Set 07

Practice Test: Question Set - 07

1. Pick up the correct statement from the following:
    (A) Styrene resin is produced from ethylene which is made from petroleum
    (B) Styrene resin is light in weight
    (C) Styrene resin transmits ultraviolet waves of light
    (D) All the above

2. The initial setting time for ordinary Portland cement as per IS specifications should not be less than
    (A) 10 minutes
    (B) 30 minutes
    (C) 60 minutes
    (D) 600 minutes

3. Rapid hardening cement attains early strength due to
    (A) Larger proportion of lime grounded finer than normal cement
    (B) Lesser proportion of lime grounded coarser than normal cement
    (C) Lesser proportion of lime grounded finer than normal cement
    (D) Excess percentage of gypsum

4. With increase in moisture content, the bulking of sand
    (A) Increases
    (B) Decreases
    (C) First increases to a certain maximum value and then decreases
    (D) First decreases to a certain minimum value and then increases

5. Plywood is normally available
    (A) 1 mm thick
    (B) 2 mm thick
    (C) 2 to 3 mm thick
    (D) 3 mm to 4 mm thick

6. Compared to mild steel, cast iron has
    (i) High compressive strength
    (ii) High tensile strength
    (iii) Low compressive strength
    (iv) Low tensile strength
    The correct answer is
    (A) (i) and (ii)
    (B) (ii) and (iii)
    (C) (iii) and (iv)
    (D) (i)and(iv)

7. In a mortar, the binding material is
    (A) Cement
    (B) Sand
    (C) Surkhi (brick-dust)
    (D) Cinder

8. The vehicle used in case of enamel paints is usually
    (A) Linseed oil
    (B) Water
    (C) Varnish
    (D) None of the above

9. In the method of condensation polymerization,
    (A) Low-molecular substances are removed from the high molecular substance
    (B) The reaction proceeds with an evolution of ammonia
    (C) The reaction proceeds with an evolution of hydrogen chloride
    (D) All of the above

10. The slenderness ratio for masonry walls should not be more than
    (A) 10
    (B) 20
    (C) 30
    (D) 40

11. Sand stone is
    (A) Sedimentary rock
    (B) Metamorphic rock
    (C) Igneous rock
    (D) Volcanic rock

12. Which of the following represents a metamorphic rock?
     (i) Slate
     (ii) Shale
     (iii) Quartzite
     The correct answer is
    (A) Only (iii)
    (B) Both (i) and (iii)
    (C) Both (ii) and (iii)
    (D) All (i), (ii) and (iii)

13. For the manufacture of Portland cement, the proportions of raw materials used, are
    (A) Lime 63% ; silica 22% ; other ingredients 15%
    (B) Lime 22% ; silica 63% ; other ingredients 15%
    (C) Silica 40% ; lime 40% ; other ingredients 20%
    (D) Silica 70% ; lime 20% ; other ingredients 10%

14. A good building stone should not absorb water more than
    (A) 5 %
    (B) 10 %
    (C) 15 %
    (D) 20 %

15. Good quality stones must
    (A) Be durable
    (B) Be free from clay
    (C) Resist action of acids
    (D) All the above

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