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Practice Test: Question Set - 13

1. Pick up the most favorable condition for the rapid growth of fungus for dry rot from the following:
    (A) Absence of sun light
    (B) Dampness
    (C) Presence of sap
    (D) All the above

2. Crushing strength of a first class brick should not be less than
    (A) 3.5 N/mm²
    (B) 7.0 N/mm²
    (C) 10.5 N/mm²
    (D) 14.0 N/mm²

3. Pick up the correct statement from the following:
    (A) Rust is due to formation of oxides
    (B) Cast iron oxidizes less
    (C) Steel oxidizes most
    (D) All the above

4. The main constituent of cement which is responsible for initial setting of cement is
    (A) Di-calcium silicate
    (B) Tri-calcium silicate
    (C) Tri-calcium aluminate
    (D) All of the above

5. Pick up the correct statement from the following:
    (A) The low voltage porcelain is prepared by wet process
    (B) The high voltage porcelain is prepared by dry process
    (C) The low voltage porcelain is prepared by dry process
    (D) None of the above

6. In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as
    (A) English bond
    (B) Double Flemish bond
    (C) Zigzag bond
    (D) Single Flemish bond

7. In stone masonry, if stones are so placed that their layers are parallel to the direction of load, they
    (A) Split easily
    (B) Are affected by moisture
    (C) Both (A) and (B)
    (D) None of these

8. Granite is not suitable for ordinary building purpose because
    (A) It cannot be polished
    (B) It is not a fire proof material
    (C) It is costly
    (D) It has less crushing strength

9. Lacquer paints
    (A) Are generally applied on structural steel
    (B) Are less durable as compared to enamel paints
    (C) Consist of resin and nitro-cellulose
    (D) All the above

10. Glazing is used to make earthenware
    (A) Hard
    (B) Soft
    (C) Porous
    (D) Impervious

11. In the cement the compound quickest to react with water, is
    (A) Tri-calcium aluminate
    (B) Tetra-calcium alumino-ferrite
    (C) Tri-calcium silicate
    (D) Di-calcium silicate

12. Which of the following gradients exerts maximum influence on properties of steel?
    (A) Iron
    (B) Carbon
    (C) Manganese
    (D) Sulphur

13. Stainless steel contains
    (A) 18% of chromium and 8% nickel
    (B) 8% of chromium and 18% of nickel
    (C) 12% of chromium and 36% of nickel
    (D) 36% of chromium and 12% of nickel

14. Excess of silica in brick earth results in
    (A) Cracking and warping of bricks
    (B) Loss of cohesion
    (C) Enhancing the impermeability of bricks
    (D) None of the above

15. Which one of the following is acid resistant asbestos?
    (A) Actinolite asbestos
    (B) Amosite asbestos
    (C) Anthophylite asbestos
    (D) All the above

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