Engineering MCQ Quiz Hub

1. Pick up the correct statement from the following:
The percentage of absorption for firebricks varies from 5 to 10
The percentage of silica in silica bricks is to the extent of about 95 to 97 percent
Roughly 1 to 2 percent of lime in silica bricks is added to act as binding material
All the above.

2. Spirit varnish generally consists of
oil, wax and resin
alcohol, wax and turpentine
pigment and synthetic resin
spirit and shellac

3. Pick up the correct statement from the following:
Roasting is not necessary if iron ore is an oxide
Impurities float on the molten iron as slag
The slag contains lime about 45%
All the above.

4. The tendency of a stone is, to split along:
texture
fracture
cleavage
structure

5. Acrylic is the name of
cellulose resin
alkyd resin
methyl metha crylate
cumarone-indene.

6. Glazing of clay products, is done
to improve their appearance
to protect them from atmospheric effect
to protect them from corrosive action
all the above.

7. Lime mortar is generally made with
quick lime
fat lime
hydraulic lime
plain lime

8. Duco paints are
plastic paints
cellulose paints
emulsion paints
oil paints.

9. Pick up the correct statement from the following:
Melamine is obtained from calcium carbide
Formaldehyde is prepared synthetically from methane
The melamine when reacted with formaldehyde forms the melamine-formaldehyde resin
All the above.

10. Steel contains carbon approximately
1.50% to 5.6%
0.05% to 1.75%
0.25%
none to these.

11. Cast iron contains carbon approximately
1.5% to 5.5%
0.05% to 1.75%
0.25%
none to these.

12. Plastic asphalt is
used as a water proofing layer over roof
a mixture of cement and asphalt
a mixture of cement and asphalt
a refinery product.

13. For obtaining vinyl chloride acetate, the method used, is
addition polymerization
condensation polymerization
co-polymerization
none of these.

14. The yield strength and tensile strength of low carbon steel may be improved by the addition of
manganese
chromium
nickel
venadium

15. Bitumen completely dissolves in
carbon bisulphide
chloroform
benzol
All of these.

16. Good quality cement contains higher percentage of
Tricalcium silicate
Di-calcium silicate
Tri-calcium aluminate
Tetra calcium alumino ferrite

17. Soundness of cement is tested by
Vicat's apparatus
Le-chatelier apparatus
compressive strength testing apparatus
none of the these.

18. The PVC doors and windows are preferred as they are
rust proof
rot proof
termile proof
all of these.

19. Based on its dry weight, a freshly felled tree may contain water
25%
50%
75%
100%

20. Forge pig may be converted to wrought iron by
rolling
pudding
shingling
refining.

21. To give a brilliant finish, the type of varnish used, is
water varnish
spirit varnish
spirit varnish
oil varnish

22. Pick up the correct statement from the following:
Bull's trench kiln a trench excavated in ground
Hoffman's kiln is constructed overground
Tunnel Kiln is constructed as a tunnel
All the above.

23. The softest rock is
marble
diamond
talc
quartz.

24. Bitumen may be dissolved in
carbondioxide
sodium chloride
water
carbon disulphide

25. Pick up the correct statement from the following:
Rusting is caused due to combined action of air, moisture and carbon dioxide
During rusting, first ferrous bicarbonates are formed
On further oxidation ferrous bicarbonates get converted to ferric bicarbonates
All the above.

26. Whitworth compressed steel is obtained when molten steel is subjected to a pressure of
5 kg/mm2
9 kg/mm2
13 kg/mm2
15 kg/mm2

27. Asbestos
is an excellant insulator for heat and electricity
is fire-proof and acid proof
has sp. gravity equal to 3.10
All the above.

28. Mild steel is used for
structural works in beams, joints and girders
structural works in beams, joints and girders
columns and struts
none of these.

29. The sequence of refractory materials according to increasing melting points is :
Dolomite, Magnesia, Bauxite, Chromite
Bauxite, Chromite, Dolomite, Magnesia
Magnesia, Bauxite, Dolomite, Chromite.
All of above.

30. Veneering means
carving out designs on timber planks
chemically treating timber planks
thick layer of superior wood glued to inferior wood
thin layer of superior wood glued to inferior wood.

31. Laterite is a/an
volcanic rock
argillaceous rock
calcareous rock
calcareous rock

32. The most valuable timber may be obtained from
chir
shisham
sal
teak.

33. Pick up the correct statement from the following:
Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon
The edges of a finished wrought iron, are rough due to red shortage
Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)
All the above.

34. Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)
Tetra-calcium alumino-ferrite
Tricalcium silicate
Tricalcium silicate
Dicalcium silicate.

35. Mastic asphalt is
acid resisting material
non-corrosive material
corrosive material
heating-resisting material.

36. Which one of the following is used for preparing porcelain
clay
feldspar
quartz
All of these.

37. The commonly used base for iron and steel work, is
red lead
zinc white
white lead
titanium white.

38. Laterite is found in
U.P.
Punjab
West Bengal
Kerala.

39. Lacquer is
oil paint
distemper
spirit varnish
none to these.

40. Upto a maximum of 72% of iron, is available in
Magnetite
Red haemetite
Limonite
Siderite

41. For lime concrete,
slump is 50 to 75 mm
flexural strength at 90 days is 0.2 N/mm2
flexural strength at 90 days is 0.2 N/mm2
all the above.

42. Pig iron made from heamatite ores free from sulphur, phosphorus and copper, is known as
Bessemer pig
Bessemer pig
White or forge pig
Mottled pig

43. Pick up the correct statement from the following:
Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish
Cracked paints may be cured by removing paint and giving a fresh coat of paint
Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps
All the above.

44. The material generally not used as extender in paints, is
Powdered silica
gypsum
talc
zinc white.

45. Pick up the non-inflammable plastic from the following:
Cellulose acetate plastics
Polyvinyl chloride plastics
Phenol formaldehyde plastic
Urea formaldehyde plastic.

46. The most commonly used synthetic abrasive is
aluminium carbide
boric acid
silicon
All of these.

47. For light and ornamental casting, the most unsuitable pig iron, is
Bessemer pig
Grey or foundry pig
White or forge pig
Mottled pig.

48. Seasoning of timber is essential to remove
knots from timber
sap from timber
twisted fibre from timber
roughness of timber.

49. The melting point of silica is :
1570°C
1630°C
1730°C
1850°C.