Building Materials MCQs Set-8

Page 1 of 4

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

40 m

20 m

30 m

10 m

2. Cast steel is manufactured by

Cementation process

Bessemer process

Crucible process

Open hearth process

3. Slate is formed by metamorphic action on

Shale

Sand stone

Lime stone

Granite

4. Age of a tree may be ascertained by

Number of branches

Number of annual rings

Radius of its stem

Circumference of its stem

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

Basalt and marble are the only metamorphic rocks

There is no sedimentary rock

Quartz and mica are minerals

Granite is the only igneous rock

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

Water

Calcium oxide

Clay

Silica

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

Siliceous rocks

Sedimentary rocks

Argillaceous rocks

Calcareous rocks

8. 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

10 %

15 %

None of these

20 %

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

The compressive strength of the stone

The toughness of the stone

The presence of soluble matter of stone

The hardness of the stone

10. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

Only (i)

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

Both (i) and (iii)

Both (i) and (ii)

Page 2 of 4

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

Ferrous oxide

Zinc white

Red lead

White lead

12. Pick up the correct statement from the following:

Fibrous fillers increase thermal resistance

All of these

Catalysts are added to assist and accelerate the hardening of resin

The fillers are inert materials and they impart strength and hardness

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

Batten

Plank

Baulk

Log

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

120 kg/cm2

100 kg/cm2

90 kg/cm2

75 kg/cm2

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

7 MPa

16 MPa

11.5 MPa

21 MPa

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

None of the above

Iron work

Both wood work and iron work

Wood work

17. Calcination of iron ores is done

By roasting in heaps

To remove moisture

All of these

To remove carbonic acid

18. The foliated structure is very common in

Metamorphic rocks

Sedimentary rocks

Igneous rocks

None of these

19. The nominal size of the modular brick is

200 mm × 200 mm × 100 mm

200 mm × 100 mm × 100 mm

190 mm × 90 mm × 80 mm

190 mm × 190 mm × 90 mm

20. Plastics are compounds of carbon with element

All of these

Nitrogen

Oxygen

Hydrogen

Page 3 of 4

21. Sea sand used in structures causes

All of these

Efflorescence

Disintegration

Dampness

22. Generally wooden moulds are made from

Teak wood

Deodar wood

Ply wood

Shishum wood

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

25 %

20 %

15 %

22 %

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

Trowel

Bolster

Square

Scutch

25. Addition of pozzolana to ordinary Portland cement increases

Bleeding

Permeability

Heat of hydration

Shrinkage

26. Which of the following is a mineral?

Granite

Syenite

Quartz

Basalt

27. Pug mill is used for

Moulding of clay

Drying of bricks

Preparation of clay

Burning of bricks

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

1.5

2.7

2.2

1.7

29. Bitumen is generally obtained from

Synthetic material

Organic material

Petroleum product

Coal

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

1500 kg

1800 kg

2000 kg

1200 kg

Page 4 of 4

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

One and a half bricks thick

Two bricks thick

Half brick thick

One brick thick

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

Refractory bricks

Over-burnt bricks

First class bricks

Under-burnt bricks

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

Low heat cement

Ordinary Portland cement

Sulphate resisting cement

Rapid hardening cement

34. 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

(ii) and (iii)

(i) and (ii)

(i) and (iv)

(iii) and (iv)

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

15 %

35 %

25 %

5 %

36. The commonly used thinner in oil paints, is

(C) Both (a) and (b)

(A) Naphtha

(B) Turpentine

(D) None the these

37. Glazing of clay products, is done

All of these

To improve their appearance

To protect them from atmospheric effect

To protect them from corrosive action

38. Cross cut saw is used for

Dressing stones

Cutting hard stones

Cutting large blocks of stones

Cutting soft stones

39. Pick up the synthetic resin from the following:

All of these

Resorcinol resin

Phenolic resin

Urea resin

40. Bulking of sand is caused due to

Viscosity

Surface moisture

Clay contents

Air voids

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