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Practice Test: Question Set - 26


1. Brittleness of cold is due to an excess of
    (A) Sulphur
    (B) Carbon
    (C) Phosphorus
    (D) Silicon

2. Asbestos cement
    (A) Is brittle
    (B) Warps due to changes in humidity
    (C) Strength is lowered when saturated by water
    (D) All of the above

3. Gneiss is obtained from
    (A) Igneous rocks
    (B) Metamorphic rocks
    (C) Sedimentary rocks
    (D) Sedimentary metamorphic rocks

4. Fibre glass
    (A) Retains heat-longer
    (B) Has a higher strength to weight ratio
    (C) Is shock proof and fire retardant
    (D) All the above

5. Pick up the correct statement from the following:
    (A) The theory of formation of concrete is based on the phenomena of formation of voids
    (B) The bulking of sand is taken into account while volumetric proportioning of the aggregates
    (C) The dry sand and the sand completely flooded with water, have practically the same volume
    (D) All the above

6. The commonly used color pigment in paints, is
    (A) Ambers
    (B) Carbon black
    (C) Iron oxide
    (D) All the above

7. The variety of pig iron used for the manufacture of steel by Bessemer process, is
    (A) Bessemer pig
    (B) Grey pig
    (C) White forge pig
    (D) Mottled pig

8. Vanadium steel is generally used for
    (A) Railway switches and crossing
    (B) Bearing balls
    (C) Magnets
    (D) Axles and springs

9. A badly mixed cement concrete results in
    (A) Segregation
    (B) Bleeding
    (C) Honey combing
    (D) None of these

10. Chemically, marble is known as
    (A) Metamorphic rock
    (B) Argillaceous rock
    (C) Calcareous rock
    (D) Siliceous rock

11. The filler used in plastic bitumen, is
    (A) Shale powder
    (B) Talc powder
    (C) Asbestos powder
    (D) Plastic powder

12. Mastic asphalt is generally used for
    (A) Damp proof course
    (B) Water proof layer
    (C) Partition walls
    (D) Both (A) and (B)

13. The most fire resistant paints are:
    (A) Enamel paints
    (B) Aluminium paints
    (C) Asbestos paints
    (D) Cement paints

14. A pug mill is used for
    (A) Softening brick earth
    (B) Moulding brick earth
    (C) Tempering brick earth
    (D) Providing brick earth

15. A good brick earth should contain:
    (A) About 20% to 30% of alumina
    (B) About 50% to 60% of silica
    (C) Not more than 5% of lime
    (D) All the above

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