Practice Test: Question Set - 27
1. The compound of Portland cement which contributes to the strength after two to three years is
- (A) Tri-calcium
silicate
- (B) Di-calcium
silicate
- (C) Tri-calcium
aluminate
- (D) Tetra-calcium
alumino ferrite
2. Bessemer process is used for the manufacture of
- (A) Pig
iron
- (B) Cast
iron
- (C) Wrought iron
- (D) Steel
3. Which one of the following is an air binding material?
- (A) Gypsum
- (B) Acid-resistant
cement
- (C) Quick lime
- (D) All
of these
4. A good quality stone absorbs water less than
- (A) 5 %
- (B) 10 %
- (C) 15 %
- (D) 25 %
5. The slag which floats on the surface of the molten iron generally contains
- (A) Lime (CaO)
45%
- (B) Silica (SiO2)
35%
- (C) Alumina (Al2O3)
12% and MgO, CaSO4, KMnO2 and FeO 8%
- (D) All the
above
6. For the manufacture of plywood, veneers are placed so that grains of adjacent veneers
- (A) Run
at right angles
- (B) Parallel
- (C) Inclined at
45°
- (D) Inclined at
60°
7. The commonly used drying oil for oil paints, is
- (A) Olive oil
- (B) Linseed oil
- (C) Kerosene oil
- (D) Acetate of
lead
8. Initial setting of cement is caused due to
- (A) Tri-calcium
silicate
- (B) Di-calcium
silicate
- (C) Tri-calcium
aluminate
- (D) Tetra
calcium alumino ferrite
9. Wrought iron is manufactured from pig iron by
- (A) Refining
- (B) Pudding
- (C) Shingling
- (D) All
the above
10. Fibre boards can be
- (A) Distempered
- (B) Painted
- (C) Painted
and distempered
- (D) Used
for furniture
11. Lime concrete is generally used for
- (A) Wall
foundations
- (B) Flooring
at ground level
- (C) Both (A) and
(B)
- (D) Neither (A)
nor (B)
12. Bituminous fells are used for
- (A) Covering
A.C. sheets
- (B) Covering
sloping roofs
- (C) D.P.C.
- (D) None to
these
13. Quick setting cement is produced by adding
- (A) Less
amount of gypsum in very fine powdered form
- (B) More
amount of gypsum in very fine powdered form
- (C) Aluminium
sulphate in very fine powdered form
- (D) Pozzolana
in very fine powdered form
14. Pick up the correct statement from the following:
- (A) The
substance which consists of one primary chemical, is known as monomer
- (B) The
polymer consists of thousands of monomers joined together
- (C) The
polymer molecule is called macro-molecule
- (D) All the
above
15. The normal curing period for lime mortar, is:
- (A) 1 day
- (B) 3 days
- (C) 7 days
- (D) 10 days
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