Building Materials MCQs Set-11

Page 1 of 4

1. Acrylic sheets

Are generally unaffected by most household detergents

All the above

Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness

Possess the light transmission rate of 93%

2. Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as

White cement

Rapid hardening cement

Low heat Portland cement

Quick setting cement

3. The most important constituent of an oil paint, is

Thinner

Vehicle

All of these

Pigment

4. Pick up the rock which is not a sedimentary rock from the following:

Gravel

Dolerite

Gypsum

Sand stone

5. The variety of pig iron used for manufacture of wrought iron, is

White forge pig

Mottled pig

Bessemer pig

Grey or foundry pig

6. A well seasoned timber may contain moisture up to

6 to 8 %

10 to 12 %

8 to 10 %

4 to 6 %

7. For high grade instruments the steel preferred to, is

Bessemer steel

Cast steel

Whitworth compressed steel

Mild steel

8. Lime stones are generally known as

Stratified rocks

Sedimentary rocks

Aqueous rocks

All of these

9. The cracks which extend from bark towards the sap wood in the cross section of a tree, are called

Radial shakes

Star shakes

Heart shakes

Cup shakes

10. The steel used in R.C.C. work is

Stainless steel

Mild steel

Wrought iron

High carbon steel

Page 2 of 4

11. Porcelain is used as:

Storage vessels

Electric insulators

Sanitary wares

Reactor chambers

12. The standard size of masonry bricks, is

21 cm × 11 cm × 11 cm

18 cm × 8 cm × 8 cm

19 cm × 9 cm × 9 cm

20 cm × 10 cm × 10 cm

13. Acrylic is the name of

Alkyd resin

Methyl methacrylate

Cellulose resin

Cumarone-indene

14. The commonly used base for iron and steel work, is

White lead

Titanium white

Red lead

Zinc white

15. The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

Open hearth process

Bessemer process

Cementation process

Crucible process

16. Upto a maximum of 72% of iron, is available in

Siderite

Iron pyrites

Limonite

Magnetite

17. The specific gravity of marble, is

2.72

2.60

2.50

2.66

18. Stones used for rubble masonry must be

Soft

Heavy

Light

Hard

19. Wrought iron contains carbon upto

1.0 %

1.5 %

0.25 %

2.0 %

20. In a rock calcium carbonate predominates. State whether it is :

None of these

Siliceous rock

Calcareous rock

Argillaceous rock

Page 3 of 4

21. The lime which contains high percentage of calcium oxide, is generally called

None of these

Fat lime

Rich lime

White lime

22. The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to

Toughed cast iron

White cast iron

Mottled cast iron

Grey cast iron

23. Bitumen felt is used for

(A) Water proofing

(D) Neither (A) nor (B)

(C) Both (A) and (B)

(B) Damp proofing

24. The minimum compressive strength of 1st class bricks should be

120 kg/cm^2

90 kg/cm^2

100 kg/cm^2

75 kg/cm^2

25. The sequence of refractory materials according to increasing melting points is:

None of these

Bauxite, Chromites, Dolomite, Magnesia

Magnesia, Bauxite, Dolomite, Chromites

Dolomite, Magnesia, Bauxite, Chromites

26.

Stone ware

All of these

Refractory clay

Earthen ware

27. The property by virtue of which lime sets under water, is known as

Setting

Slacking

Hydraulicity

Calcining

28. The usual percentages of clay and metal in cermet are:

60%, 40%

80%, 20%

50%, 50%

70%, 30%

29. The PVC doors and windows are preferred as they are

All of these

Rust proof

Rot proof

Water proof

30. Kaolin is chemically classified as

Argillaceous rock

Siliceous rock

Calcareous rock

Metamorphic rock

Page 4 of 4

31. Knots in timber are

Splits radiating from the centre

Defects caused by crushing fibres

Signs of branches cut off

Speckled strains

32. The rock generally used for roofing, is

Granite

Basalt

Slate

Pumice

33. The steel used for rails under heavy traffic and on sharp curves, is

Vanadium steel

Manganese steel

Nickel steel

Chrome steel

34. Second class bricks

Are well burnt

Are under burnt

Produce a metallic sound when struck

Are of dark brown color

35. Pick up the polymineralic rock from the following:

Magnesite

Granite

Quartz sand

Pure gypsum

36. The melting point of silica is:

1570°C

1850°C

1730°C

1630°C

37. Plastic asphalt is

A refinery product

A mixture of cement and asphalt

Used as a water proofing layer over roof

A natural asphalt

38. Pick up the hypabyssal rock from the following:

All of these

Granite

Dolerite

Basalt

39. The lime which contains mainly calcium oxide and slacks with water, is

Poor lime

Quick lime

Hydraulic lime

Fat lime

40. The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:

10, 15, 75

15, 75, 10

75, 10, 15

10, 75, 15

Building Materials MCQs Set-11

Related

Leave a ReplyCancel reply

Secured Payments

Protection

Building Materials MCQs Set-11

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Secured Payments

Protection