Building Materials MCQs Set-8

Page 1 of 4

1. The nominal size of the modular brick is

200 mm × 100 mm × 100 mm

190 mm × 90 mm × 80 mm

190 mm × 190 mm × 90 mm

200 mm × 200 mm × 100 mm

2. Pick up the correct statement from the following:

All of these

The fillers are inert materials and they impart strength and hardness

Catalysts are added to assist and accelerate the hardening of resin

Fibrous fillers increase thermal resistance

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

1200 kg

1800 kg

1500 kg

2000 kg

4. Cast steel is manufactured by

Bessemer process

Cementation process

Open hearth process

Crucible process

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

Sulphate resisting cement

Rapid hardening cement

Ordinary Portland cement

Low heat cement

6. Plastics are compounds of carbon with element

Oxygen

Nitrogen

Hydrogen

All of these

7. Bulking of sand is caused due to

Viscosity

Surface moisture

Air voids

Clay contents

8. Cross cut saw is used for

Cutting hard stones

Dressing stones

Cutting soft stones

Cutting large blocks of stones

9. 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

10. Pug mill is used for

Preparation of clay

Moulding of clay

Drying of bricks

Burning of bricks

Page 2 of 4

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

30 m

20 m

40 m

10 m

12. The commonly used thinner in oil paints, is

(A) Naphtha

(B) Turpentine

(D) None the these

(C) Both (a) and (b)

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

Half brick thick

One and a half bricks thick

Two bricks thick

One brick thick

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

Quartz and mica are minerals

There is no sedimentary rock

Granite is the only igneous rock

Basalt and marble are the only metamorphic rocks

15. Sea sand used in structures causes

Dampness

Efflorescence

Disintegration

All of these

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

2.7

1.7

2.2

1.5

17. Addition of pozzolana to ordinary Portland cement increases

Permeability

Bleeding

Shrinkage

Heat of hydration

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

Argillaceous rocks

Siliceous rocks

Calcareous rocks

Sedimentary rocks

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

20 %

22 %

15 %

25 %

20. 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)

Page 3 of 4

21. Bitumen is generally obtained from

Synthetic material

Coal

Petroleum product

Organic material

22. The foliated structure is very common in

Metamorphic rocks

None of these

Sedimentary rocks

Igneous rocks

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

None of the above

Iron work

Wood work

Both wood work and iron work

24. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

Both (i) and (iii)

Only (i)

Both (i) and (ii)

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

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

Square

Trowel

Bolster

Scutch

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

25 %

35 %

15 %

5 %

27. Age of a tree may be ascertained by

Radius of its stem

Number of branches

Circumference of its stem

Number of annual rings

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

Under-burnt bricks

Over-burnt bricks

Refractory bricks

First class bricks

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

Ferrous oxide

White lead

Zinc white

Red lead

30. 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 %

Page 4 of 4

31. Generally wooden moulds are made from

Ply wood

Teak wood

Deodar wood

Shishum wood

32. Pick up the synthetic resin from the following:

All of these

Urea resin

Phenolic resin

Resorcinol resin

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

The compressive strength of the stone

The toughness of the stone

The hardness of the stone

The presence of soluble matter of stone

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

75 kg/cm2

100 kg/cm2

120 kg/cm2

90 kg/cm2

35. Slate is formed by metamorphic action on

Granite

Shale

Lime stone

Sand stone

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

Calcium oxide

Clay

Silica

Water

37. Glazing of clay products, is done

To protect them from atmospheric effect

All of these

To improve their appearance

To protect them from corrosive action

38. Which of the following is a mineral?

Syenite

Granite

Basalt

Quartz

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

Baulk

Log

Plank

Batten

40. Calcination of iron ores is done

To remove carbonic acid

By roasting in heaps

All of these

To remove moisture

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