Building Materials MCQs Set-8

Page 1 of 4

1. Calcination of iron ores is done

To remove moisture

By roasting in heaps

All of these

To remove carbonic acid

2. The minimum compressive strength of 2nd class bricks should be

90 kg/cm2

120 kg/cm2

100 kg/cm2

75 kg/cm2

3. Study the following statements.

(i) Hydraulic lime is suitable for white washing,

(ii) Fat lime is suitable for whitewashing,

(iii) Hydraulic lime is suitable for making mortar,

(iv) Fat lime is suitable for making mortar.

The correct answer is

(i) and (ii)

(ii) and (iii)

(i) and (iv)

(iii) and (iv)

4. Glazing of clay products, is done

All of these

To protect them from corrosive action

To protect them from atmospheric effect

To improve their appearance

5. Sea sand used in structures causes

Efflorescence

All of these

Disintegration

Dampness

6. Minimum thickness of wall where single Flemish bond can be used is

Two bricks thick

One brick thick

One and a half bricks thick

Half brick thick

7. Based on the following rocks and minerals, select the correct statement, quartz, shale, basalt, granite, marble, gypsum, mica

There is no sedimentary rock

Granite is the only igneous rock

Basalt and marble are the only metamorphic rocks

Quartz and mica are minerals

8. The nominal size of the modular brick is

200 mm × 100 mm × 100 mm

200 mm × 200 mm × 100 mm

190 mm × 190 mm × 90 mm

190 mm × 90 mm × 80 mm

9. A first class brick when immersed in cold water for 24 hours should not absorb water more than

25 %

22 %

15 %

20 %

10. Age of a tree may be ascertained by

Number of branches

Circumference of its stem

Radius of its stem

Number of annual rings

Page 2 of 4

11. The most important tool in brick laying for lifting and spreading mortar and for forming joints is

Bolster

Trowel

Square

Scutch

12. Which of the following is a mineral?

Syenite

Quartz

Basalt

Granite

13. The commonly used thinner in oil paints, is

(D) None the these

(A) Naphtha

(B) Turpentine

(C) Both (a) and (b)

14. Paints with white lead base are suitable for painting of

None of the above

Iron work

Wood work

Both wood work and iron work

15. Pug mill is used for

Moulding of clay

Drying of bricks

Preparation of clay

Burning of bricks

16. Which of the following bricks are used for lining of furnaces?

Under-burnt bricks

Over-burnt bricks

First class bricks

Refractory bricks

17. Generally wooden moulds are made from

Teak wood

Ply wood

Deodar wood

Shishum wood

18. Cross cut saw is used for

Dressing stones

Cutting large blocks of stones

Cutting soft stones

Cutting hard stones

19. Plastics are compounds of carbon with element

Hydrogen

Nitrogen

Oxygen

All of these

20. What is the answer to this question?The weight of 1 m³ of brick earth, is about

2000 kg

1500 kg

1800 kg

1200 kg

Page 3 of 4

21. Expansion joints in masonry walls are provided if length exceeds

40 m

20 m

30 m

10 m

22. Pick up the synthetic resin from the following:

Phenolic resin

Urea resin

All of these

Resorcinol resin

23. For a good building stone, its specific gravity should the greater than

1.5

2.7

2.2

1.7

24. Addition of pozzolana to ordinary Portland cement increases

Heat of hydration

Shrinkage

Permeability

Bleeding

25. Pick up the correct statement from the following:

The fillers are inert materials and they impart strength and hardness

Catalysts are added to assist and accelerate the hardening of resin

All of these

Fibrous fillers increase thermal resistance

26. Smith's test of stones is performed to find out

The hardness of the stone

The compressive strength of the stone

The toughness of the stone

The presence of soluble matter of stone

27. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

Both (i) and (ii)

Both (i) and (iii)

All (i), (ii) and (iii)

Only (i)

28. The main constituent which imparts hydraulicity to hydraulic lime is

Calcium oxide

Silica

Clay

Water

29. According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than

7 MPa

16 MPa

21 MPa

11.5 MPa

30. Cast steel is manufactured by

Bessemer process

Cementation process

Crucible process

Open hearth process

Page 4 of 4

31. The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick

None of these

20 %

15 %

10 %

32. The rocks having alumina or clay as their major constituents are known as

Argillaceous rocks

Sedimentary rocks

Siliceous rocks

Calcareous rocks

33. The foliated structure is very common in

Igneous rocks

Metamorphic rocks

Sedimentary rocks

None of these

34. The trunk of tree left after cutting all the branches is known as

Baulk

Log

Plank

Batten

35. Bitumen is generally obtained from

Organic material

Petroleum product

Coal

Synthetic material

36. Which of the following cements is suitable for use in massive concrete structures such as large dams?

Low heat cement

Rapid hardening cement

Sulphate resisting cement

Ordinary Portland cement

37. The practical limit of moisture content achieved in air drying of timber is

25 %

15 %

35 %

5 %

38. The pigment used in paints for corrosive resistance, is

Zinc white

Ferrous oxide

Red lead

White lead

39. Slate is formed by metamorphic action on

Shale

Lime stone

Sand stone

Granite

40. Bulking of sand is caused due to

Air voids

Surface moisture

Clay contents

Viscosity

Building Materials MCQs Set-8

Related

Leave a ReplyCancel reply

Ads by Google

Recent Posts

Membership Registration

Secured Payment

Protection

Building Materials MCQs Set-8

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Ads by Google

Recent Posts

Membership Registration

Secured Payment

Protection