Building Materials MCQs Set-8

Page 1 of 4

1. Plastics are compounds of carbon with element

All of these

Oxygen

Hydrogen

Nitrogen

2. Cross cut saw is used for

Cutting soft stones

Dressing stones

Cutting large blocks of stones

Cutting hard stones

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

22 %

15 %

25 %

20 %

4. The foliated structure is very common in

Igneous rocks

Metamorphic rocks

Sedimentary rocks

None of these

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

Low heat cement

Ordinary Portland cement

Rapid hardening cement

Sulphate resisting cement

6. The commonly used thinner in oil paints, is

(C) Both (a) and (b)

(D) None the these

(B) Turpentine

(A) Naphtha

7. Bitumen is generally obtained from

Petroleum product

Coal

Synthetic material

Organic material

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

21 MPa

7 MPa

16 MPa

11.5 MPa

9. 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

Granite is the only igneous rock

Quartz and mica are minerals

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

Clay

Silica

Water

Calcium oxide

Page 2 of 4

11. Which of the following is a mineral?

Granite

Quartz

Syenite

Basalt

12. 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

(i) and (ii)

(ii) and (iii)

(iii) and (iv)

(i) and (iv)

13. Slate is formed by metamorphic action on

Granite

Sand stone

Lime stone

Shale

14. Cast steel is manufactured by

Crucible process

Open hearth process

Bessemer process

Cementation process

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

Trowel

Square

Scutch

Bolster

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

One and a half bricks thick

One brick thick

Half brick thick

Two bricks thick

17. 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

18. 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

20 %

None of these

15 %

10 %

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

1200 kg

1800 kg

2000 kg

1500 kg

20. Generally wooden moulds are made from

Teak wood

Deodar wood

Shishum wood

Ply wood

Page 3 of 4

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

Zinc white

Ferrous oxide

White lead

Red lead

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

Under-burnt bricks

Refractory bricks

Over-burnt bricks

First class bricks

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

Iron work

Wood work

Both wood work and iron work

None of the above

24. Calcination of iron ores is done

All of these

To remove moisture

To remove carbonic acid

By roasting in heaps

25. Pug mill is used for

Drying of bricks

Preparation of clay

Moulding of clay

Burning of bricks

26. Pick up the synthetic resin from the following:

Phenolic resin

All of these

Urea resin

Resorcinol resin

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

2.7

2.2

1.5

1.7

28. Bulking of sand is caused due to

Clay contents

Surface moisture

Viscosity

Air voids

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

Siliceous rocks

Calcareous rocks

Sedimentary rocks

Argillaceous rocks

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

40 m

10 m

20 m

30 m

Page 4 of 4

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

The compressive strength of the stone

The presence of soluble matter of stone

The toughness of the stone

The hardness of the stone

32. Addition of pozzolana to ordinary Portland cement increases

Heat of hydration

Permeability

Shrinkage

Bleeding

33. Age of a tree may be ascertained by

Circumference of its stem

Number of annual rings

Number of branches

Radius of its stem

34. Pick up the correct statement from the following:

Fibrous fillers increase thermal resistance

Catalysts are added to assist and accelerate the hardening of resin

All of these

The fillers are inert materials and they impart strength and hardness

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

Log

Plank

Batten

Baulk

36. The nominal size of the modular brick is

200 mm × 200 mm × 100 mm

200 mm × 100 mm × 100 mm

190 mm × 190 mm × 90 mm

190 mm × 90 mm × 80 mm

37. Sea sand used in structures causes

All of these

Efflorescence

Dampness

Disintegration

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

25 %

15 %

5 %

35 %

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

120 kg/cm2

100 kg/cm2

90 kg/cm2

75 kg/cm2

40. 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)

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