Building Materials and Construction Viva Questions - Set 28 - ObjectiveBooks
Building Materials and Construction Viva Questions - Set 28

Building Materials and Construction Viva Questions - Set 28

Practice Test: Question Set - 28

1. German silver is an alloy of
    (A) Zinc, lead and nickel
    (B) Silver, gold and lead
    (C) Copper, nickel and zinc
    (D) Copper, brass and zinc
2. For the manufacture of stainless steel, steel is mixed with
    (A) Chromium
    (B) Nickel
    (C) Tungsten
    (D) None of these
3. The presence of original rounded surface on the manufactured piece of timber, is called
    (A) Wane
    (B) Torn grain
    (C) Diagonal grain
    (D) Chipmark
4. In paints, the pigment is responsible for
    (A) Durability
    (B) Color
    (C) Smoothness
    (D) Glassy face
5. The operation of removal of impurities or clay adhering to iron ores, is known as
    (A) Dressing
    (B) Calcination
    (C) Roasting
    (D) Smelting
6. Dry rot
    (A) Cracks the timber
    (B) Reduces the strength of timber
    (C) Reduces the timber to powder
    (D) Spoils the appearance of timber
7. Pozzolana (or surkhi) is used in lime
    (A) To impart hydraulicity
    (B) To prevent shrinkage
    (C) To decrease the cost of construction
    (D) To decrease the setting time
8. The size of modular bricks, is
    (A) 10 × 10 × 9 cm
    (B) 19 × 9 × 9 cm
    (C) 22.5 × 10 × 8.5 cm
    (D) 22.5 × 8.0 × 9 cm
9. Plywood is obtained by gluing wooden sheets at
    (A) 100 to 150 N/cm2
    (B) 100 to 130°C
    (C) Both (A) and (B)
    (D) Neither (A) nor (B)
10. The low voltage porcelain is mainly used for
    (A) Switch block
    (B) Insulating tubes
    (C) Lamp sockets
    (D) All of these
11. The initial setting time of hydraulic lime, is
    (A) 30 minutes
    (B) 60 minutes
    (C) 90 minutes
    (D) 120 minutes
12. PVC stands for
    (A) Plastic very compact
    (B) Polythene vinyl chloride
    (C) Polythene vinyl carbon
    (D) Polythene vanadium carbide
13. Cement paints usually
    (A) Contain hydrated lime
    (B) Contain 5% to 10% color pigments
    (C) Contain 5% sodium chloride
    (D) All the above
14. The kiln which may work throughout the year, is
    (A) Clamp
    (B) Bull's kiln
    (C) Hoffman's kiln
    (D) None of these
15. The main ingredient of a good quality brick earth, is
    (A) Magnesia
    (B) Lime
    (C) Silica
    (D) Alumina
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