Building Materials MCQs Set-8

Page 1 of 4

1. Pug mill is used for

Preparation of clay

Burning of bricks

Moulding of clay

Drying of bricks

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

1.7

2.7

2.2

1.5

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

Over-burnt bricks

Refractory bricks

Under-burnt bricks

First class bricks

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

Batten

Plank

Log

Baulk

5. Calcination of iron ores is done

By roasting in heaps

All of these

To remove moisture

To remove carbonic acid

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

Half brick thick

One and a half bricks thick

One brick thick

Two bricks thick

7. Age of a tree may be ascertained by

Number of branches

Radius of its stem

Circumference of its stem

Number of annual rings

8. Cross cut saw is used for

Cutting large blocks of stones

Dressing stones

Cutting hard stones

Cutting soft stones

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

1500 kg

1200 kg

1800 kg

2000 kg

10. Sea sand used in structures causes

Disintegration

All of these

Efflorescence

Dampness

Page 2 of 4

11. Addition of pozzolana to ordinary Portland cement increases

Permeability

Heat of hydration

Shrinkage

Bleeding

12. Plastics are compounds of carbon with element

Nitrogen

Oxygen

Hydrogen

All of these

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

The toughness of the stone

The hardness of the stone

The compressive strength of the stone

The presence of soluble matter of stone

14. Cast steel is manufactured by

Bessemer process

Cementation process

Crucible process

Open hearth process

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

Argillaceous rocks

Sedimentary rocks

Calcareous rocks

Siliceous rocks

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

Rapid hardening cement

Sulphate resisting cement

Ordinary Portland cement

Low heat cement

17. Glazing of clay products, is done

To protect them from atmospheric effect

To protect them from corrosive action

All of these

To improve their appearance

18. 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

Quartz and mica are minerals

Basalt and marble are the only metamorphic rocks

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

White lead

Red lead

Ferrous oxide

Zinc white

20. Pick up the correct statement from the following:

Catalysts are added to assist and accelerate the hardening of resin

The fillers are inert materials and they impart strength and hardness

Fibrous fillers increase thermal resistance

All of these

Page 3 of 4

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

Scutch

Trowel

Square

Bolster

22. The commonly used thinner in oil paints, is

(B) Turpentine

(D) None the these

(A) Naphtha

(C) Both (a) and (b)

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

Silica

Calcium oxide

Water

Clay

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

75 kg/cm2

100 kg/cm2

90 kg/cm2

120 kg/cm2

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

15 %

20 %

22 %

25 %

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

Wood work

Iron work

Both wood work and iron work

None of the above

27. Generally wooden moulds are made from

Teak wood

Deodar wood

Shishum wood

Ply wood

28. Pick up the synthetic resin from the following:

All of these

Resorcinol resin

Urea resin

Phenolic resin

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

25 %

35 %

5 %

15 %

30. Slate is formed by metamorphic action on

Lime stone

Shale

Granite

Sand stone

Page 4 of 4

31. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

Both (i) and (ii)

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

Both (i) and (iii)

Only (i)

32. Bitumen is generally obtained from

Synthetic material

Coal

Petroleum product

Organic material

33. The nominal size of the modular brick is

190 mm × 190 mm × 90 mm

200 mm × 200 mm × 100 mm

200 mm × 100 mm × 100 mm

190 mm × 90 mm × 80 mm

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

21 MPa

16 MPa

11.5 MPa

7 MPa

35. Which of the following is a mineral?

Granite

Basalt

Syenite

Quartz

36. Bulking of sand is caused due to

Surface moisture

Clay contents

Air voids

Viscosity

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

30 m

40 m

20 m

10 m

38. 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

(iii) and (iv)

(ii) and (iii)

(i) and (ii)

(i) and (iv)

39. The foliated structure is very common in

None of these

Metamorphic rocks

Igneous rocks

Sedimentary rocks

40. 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

15 %

None of these

10 %

20 %

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