Practice Test: Question Set - 30
1. Stones used for the construction of retaining walls must be
- (A) Soft
- (B) Hard
- (C) Light
- (D) Heavy
2. Permanent magnets are made of high carbon steel and
- (A) 15% of
cobalt
- (B) 20% of
cobalt
- (C) 35% of
cobalt
- (D) 45% of
cobalt
3. Stainless steel resists corrosion due to
- (A) Carbon
- (B) Sulphur
- (C) Vanadium
- (D) Chromium
4. The most important constituent of varnish, is
- (A) Drier
- (B) Solvent
- (C) Resin
- (D) All the
above
5. A ferrous metal is
- (A) Cast iron
- (B) Wrought
iron
- (C) Steel
- (D) All
the above
6. For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
- (A) 80 : 13 : 7
- (B) 70 : 20 : 10
- (C) 60 : 35 : 5
- (D) None of
these
7. Water paint is a
- (A) White
wash
- (B) Color wash
- (C) Whiting
- (D) All
the above
8. Spirit varnish generally consists of
- (A) Oil,
wax and resin
- (B) Alcohol,
wax and turpentine
- (C) Pigment and
synthetic resin
- (D) Spirit
and shellac
9. Duco paints are
- (A) Plastic
paints
- (B) Cellulose
paints
- (C) Emulsion
paints
- (D) Oil
paints
10. Pick up the correct statement from the following:
- (A) Melamine
is obtained from calcium carbide
- (B) Formaldehyde
is prepared synthetically from methane
- (C) The
melamine when reacted with formaldehyde forms the melamine-formaldehyde resin
- (D) All
the above
11. Steel contains carbon approximately
- (A) 1.50% to
5.6%
- (B) 0.05%
to 1.75%
- (C) 0.25 %
- (D) None
to these
12. Based on its dry weight, a freshly felled tree may contain water
- (A) 25 %
- (B) 50 %
- (C) 75 %
- (D) 100 %
13. Forge pig may be converted to wrought iron by
- (A) Rolling
- (B) Pudding
- (C) Shingling
- (D) Refining
14. Pick up the correct statement from the following:
- (A) Bull's
trench kiln a trench excavated in ground
- (B) Hoffman's
kiln is constructed over ground
- (C) Tunnel Kiln
is constructed as a tunnel
- (D) All the
above
15. The softest rock is
- (A) Marble
- (B) Diamond
- (C) Talc
- (D) Quartz
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