Building Materials MCQs Set-8

Page 1 of 4

1. Pick up the correct statement from the following:

All of these

The fillers are inert materials and they impart strength and hardness

Fibrous fillers increase thermal resistance

Catalysts are added to assist and accelerate the hardening of resin

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

25 %

35 %

5 %

15 %

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

Bolster

Square

Trowel

Scutch

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

Half brick thick

One brick thick

One and a half bricks thick

Two bricks thick

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

The presence of soluble matter of stone

The hardness of the stone

The toughness of the stone

The compressive strength of the stone

6. 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 (iv)

(i) and (ii)

(iii) and (iv)

7. The nominal size of the modular brick is

190 mm × 190 mm × 90 mm

200 mm × 100 mm × 100 mm

200 mm × 200 mm × 100 mm

190 mm × 90 mm × 80 mm

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

16 MPa

21 MPa

7 MPa

11.5 MPa

9. Bitumen is generally obtained from

Organic material

Synthetic material

Petroleum product

Coal

10. Sea sand used in structures causes

Efflorescence

Dampness

Disintegration

All of these

Page 2 of 4

11. Pug mill is used for

Preparation of clay

Moulding of clay

Drying of bricks

Burning of bricks

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

Calcium oxide

Water

Clay

Silica

13. Age of a tree may be ascertained by

Number of annual rings

Number of branches

Radius of its stem

Circumference of its stem

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

Under-burnt bricks

Refractory bricks

First class bricks

Over-burnt bricks

15. Pick up the synthetic resin from the following:

Urea resin

Resorcinol resin

All of these

Phenolic resin

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

Both wood work and iron work

Iron work

Wood work

None of the above

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

15 %

22 %

25 %

20 %

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

There is no sedimentary rock

Quartz and mica are minerals

Basalt and marble are the only metamorphic rocks

Granite is the only igneous rock

19. Glazing of clay products, is done

All of these

To improve their appearance

To protect them from corrosive action

To protect them from atmospheric effect

20. Slate is formed by metamorphic action on

Shale

Lime stone

Granite

Sand stone

Page 3 of 4

21. Cast steel is manufactured by

Open hearth process

Bessemer process

Cementation process

Crucible process

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

30 m

40 m

20 m

10 m

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

2.7

2.2

1.5

1.7

24. The commonly used thinner in oil paints, is

(B) Turpentine

(C) Both (a) and (b)

(D) None the these

(A) Naphtha

25. Addition of pozzolana to ordinary Portland cement increases

Heat of hydration

Permeability

Shrinkage

Bleeding

26. Generally wooden moulds are made from

Shishum wood

Deodar wood

Ply wood

Teak wood

27. Bulking of sand is caused due to

Viscosity

Air voids

Surface moisture

Clay contents

28. The foliated structure is very common in

Metamorphic rocks

Igneous rocks

None of these

Sedimentary rocks

29. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

Both (i) and (iii)

Both (i) and (ii)

Only (i)

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

30. Which of the following is a mineral?

Granite

Quartz

Basalt

Syenite

Page 4 of 4

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

Baulk

Batten

Plank

Log

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

90 kg/cm2

75 kg/cm2

120 kg/cm2

100 kg/cm2

33. Cross cut saw is used for

Cutting hard stones

Cutting soft stones

Cutting large blocks of stones

Dressing stones

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

Calcareous rocks

Argillaceous rocks

Siliceous rocks

Sedimentary rocks

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

Rapid hardening cement

Low heat cement

Ordinary Portland cement

Sulphate resisting cement

36. Plastics are compounds of carbon with element

Nitrogen

All of these

Hydrogen

Oxygen

37. Calcination of iron ores is done

By roasting in heaps

All of these

To remove moisture

To remove carbonic acid

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

Zinc white

Red lead

Ferrous oxide

White lead

39. 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 %

20 %

None of these

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

2000 kg

1200 kg

1800 kg

1500 kg

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