Building Materials MCQs Set-8

Page 1 of 4

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

Two bricks thick

Half brick thick

One and a half bricks thick

One brick thick

2. 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)

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

120 kg/cm2

90 kg/cm2

75 kg/cm2

100 kg/cm2

4. The nominal size of the modular brick is

200 mm × 100 mm × 100 mm

200 mm × 200 mm × 100 mm

190 mm × 90 mm × 80 mm

190 mm × 190 mm × 90 mm

5. Calcination of iron ores is done

To remove carbonic acid

To remove moisture

All of these

By roasting in heaps

6. 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

Basalt and marble are the only metamorphic rocks

Granite is the only igneous rock

7. The commonly used thinner in oil paints, is

(A) Naphtha

(D) None the these

(C) Both (a) and (b)

(B) Turpentine

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

Ferrous oxide

Red lead

White lead

Zinc white

9. Addition of pozzolana to ordinary Portland cement increases

Permeability

Shrinkage

Bleeding

Heat of hydration

10. Pick up the synthetic resin from the following:

Resorcinol resin

Urea resin

All of these

Phenolic resin

Page 2 of 4

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

40 m

30 m

10 m

20 m

12. Pick up the correct statement from the following:

Catalysts are added to assist and accelerate the hardening of resin

Fibrous fillers increase thermal resistance

The fillers are inert materials and they impart strength and hardness

All of these

13. Cross cut saw is used for

Dressing stones

Cutting soft stones

Cutting hard stones

Cutting large blocks of stones

14. Slate is formed by metamorphic action on

Sand stone

Granite

Shale

Lime stone

15. Bitumen is generally obtained from

Organic material

Petroleum product

Coal

Synthetic material

16. Cast steel is manufactured by

Cementation process

Bessemer process

Crucible process

Open hearth process

17. Plastics are compounds of carbon with element

Oxygen

Nitrogen

All of these

Hydrogen

18. Bulking of sand is caused due to

Clay contents

Surface moisture

Viscosity

Air voids

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

Under-burnt bricks

Refractory bricks

Over-burnt bricks

First class bricks

20. Which of the following is a mineral?

Basalt

Granite

Syenite

Quartz

Page 3 of 4

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

25 %

15 %

20 %

22 %

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

1800 kg

2000 kg

1200 kg

1500 kg

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

Iron work

Both wood work and iron work

Wood work

None of the above

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

Silica

Calcium oxide

Clay

Water

25. 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

26. Pug mill is used for

Moulding of clay

Drying of bricks

Preparation of clay

Burning of bricks

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

Baulk

Plank

Log

Batten

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

Sulphate resisting cement

Ordinary Portland cement

Low heat cement

Rapid hardening cement

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

1.5

2.2

1.7

2.7

30. Generally wooden moulds are made from

Deodar wood

Shishum wood

Teak wood

Ply wood

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

15 %

10 %

20 %

None of these

32. The foliated structure is very common in

Metamorphic rocks

Igneous rocks

None of these

Sedimentary rocks

33. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

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

Both (i) and (ii)

Only (i)

Both (i) and (iii)

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

5 %

15 %

25 %

35 %

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

Sedimentary rocks

Argillaceous rocks

Siliceous rocks

Calcareous rocks

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

Square

Scutch

Bolster

Trowel

37. 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

38. Age of a tree may be ascertained by

Number of branches

Number of annual rings

Radius of its stem

Circumference of its stem

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

The compressive strength of the stone

The presence of soluble matter of stone

The hardness of the stone

The toughness of the stone

40. Sea sand used in structures causes

Efflorescence

Dampness

Disintegration

All of these

Building Materials MCQs Set-8

Related

Leave a ReplyCancel reply

Secured Payments

Protection

Building Materials MCQs Set-8

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Secured Payments

Protection