Building Materials Online Test - Set 03 - ObjectiveBooks

Building Materials Online Test - Set 03

Practice Test: Question Set - 03

1. A volatile substance added to a paint to make its application easy and smooth, is known as
    (A) Base
    (B) Solvent
    (C) Vehicle
    (D) None to these

2. Jumper is a tool used for
    (A) Testing of stones
    (B) Quarrying of stones
    (C) Dressing of stones
    (D) None of the above

3. Pick up the volcanic rock from the following:
    (A) Granite
    (B) Dolerite
    (C) Basalt
    (D) All the above

4. Sapwood consists of
    (A) Innermost annular rings around the pith
    (B) Portion of timber between heartwood and cambium layer
    (C) Thin layers below the bark
    (D) Thin fibre which extends from the pith outwards and holds the annular rings together

5. Strength of cement concrete primarily depends upon
    (A) Quality of water
    (B) Quantity of aggregate
    (C) Quantity of cement
    (D) Water-cement ratio

6. The main function of alumina in brick earth is
    (A) To impart plasticity
    (B) To make the brick durable
    (C) To prevent shrinkage
    (D) To make the brick impermeable

7. Cast iron
    (A) Is obtained by purifying pig iron
    (B) Is manufactured in required shapes
    (C) May contain 2 to 5 per cent of carbon with other impurities
    (D) All the above

8. Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth?
    (A) Lime stone and alumina
    (B) Silica and alkalies
    (C) Alumina and iron
    (D) Alkalies and magnesium

9. Pick up the correct statement from the following:
    (A) The distinct plane of division along which a stone can easily be split, is called natural bed of stone
    (B) The natural bed of sedimentary rocks is along the planes of stratification
    (C) The natural bed of igneous rocks is not defined
    (D) All the above

10. Hydraulic lime is obtained by
    (A) Burning of lime stone
    (B) Burning of kankar
    (C) Adding water to quick lime
    (D) Calcination of pure clay

11. Oil varnish generally consists of
    (A) Synthetic resin and spirit
    (B) Oil, wax and resin
    (C) Resin, oil and turpentine
    (D) Spirit, oil and wax

12. For testing compressive strength of cement, the size of cube used is
    (A) 50 mm
    (B) 70.6 mm
    (C) 100 mm
    (D) 150 mm

13. When a brick is immersed in water for 24 hours and then dried, if
    (A) No grey or white deposits appear on the surface, the brick is free from soluble salts
    (B) 10 percent surface is covered with grey or white deposits, the brick has slight efflorescence
    (C) 50 percent surface is covered with grey or white deposits, the brick has serious efflorescence
    (D) All the above

14. Gypsum consists of
    (A) H₂S and CO₂
    (B) CaSO4 and H₂O
    (C) Lime and H₂O
    (D) CO₂ and calcium

15. For sanitary pipes and chemical stonewares,
    (A) Salt glazing is used
    (B) Lead glazing is used
    (C) Opaque glazing is used
    (D) None of these

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