Building Materials MCQs Set-8

Page 1 of 4

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

Bolster

Square

Scutch

Trowel

2. Sandstone is a

(i) Sedimentary rock

(ii) Aqueous rock

(iii) Siliceous rock

The correct answer is

Both (i) and (iii)

Both (i) and (ii)

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

Only (i)

3. The commonly used thinner in oil paints, is

(D) None the these

(A) Naphtha

(C) Both (a) and (b)

(B) Turpentine

4. Pick up the correct statement from the following:

All of these

Fibrous fillers increase thermal resistance

Catalysts are added to assist and accelerate the hardening of resin

The fillers are inert materials and they impart strength and hardness

5. 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

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

75 kg/cm2

120 kg/cm2

90 kg/cm2

100 kg/cm2

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

1.5

2.2

2.7

1.7

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

40 m

20 m

10 m

30 m

9. Glazing of clay products, is done

To protect them from corrosive action

All of these

To protect them from atmospheric effect

To improve their appearance

10. 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 %

10 %

15 %

None of these

Page 2 of 4

11. Cast steel is manufactured by

Crucible process

Cementation process

Open hearth process

Bessemer process

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

The presence of soluble matter of stone

The compressive strength of the stone

The hardness of the stone

The toughness of the stone

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

Argillaceous rocks

Sedimentary rocks

Siliceous rocks

Calcareous rocks

14. Addition of pozzolana to ordinary Portland cement increases

Permeability

Bleeding

Shrinkage

Heat of hydration

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

One and a half bricks thick

One brick thick

Two bricks thick

Half brick thick

16. Pick up the synthetic resin from the following:

Phenolic resin

Urea resin

Resorcinol resin

All of these

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

First class bricks

Refractory bricks

Over-burnt bricks

Under-burnt bricks

18. Bulking of sand is caused due to

Clay contents

Air voids

Viscosity

Surface moisture

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

Iron work

None of the above

Both wood work and iron work

Wood work

20. Which of the following is a mineral?

Granite

Syenite

Basalt

Quartz

Page 3 of 4

21. Calcination of iron ores is done

To remove carbonic acid

All of these

To remove moisture

By roasting in heaps

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

Red lead

Ferrous oxide

Zinc white

White lead

23. Bitumen is generally obtained from

Coal

Organic material

Petroleum product

Synthetic material

24. 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)

(i) and (iv)

(iii) and (iv)

(ii) and (iii)

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

35 %

25 %

15 %

5 %

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

Clay

Calcium oxide

Water

Silica

27. Slate is formed by metamorphic action on

Sand stone

Granite

Lime stone

Shale

28. Plastics are compounds of carbon with element

Nitrogen

Oxygen

All of these

Hydrogen

29. Generally wooden moulds are made from

Deodar wood

Ply wood

Shishum wood

Teak wood

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

Low heat cement

Ordinary Portland cement

Sulphate resisting cement

Rapid hardening cement

Page 4 of 4

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

Quartz and mica are minerals

Granite is the only igneous rock

There is no sedimentary rock

Basalt and marble are the only metamorphic rocks

32. Sea sand used in structures causes

Dampness

All of these

Efflorescence

Disintegration

33. Age of a tree may be ascertained by

Circumference of its stem

Number of annual rings

Radius of its stem

Number of branches

34. The foliated structure is very common in

Igneous rocks

None of these

Metamorphic rocks

Sedimentary rocks

35. Pug mill is used for

Preparation of clay

Burning of bricks

Moulding of clay

Drying of bricks

36. 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

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

20 %

22 %

25 %

15 %

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

16 MPa

7 MPa

11.5 MPa

21 MPa

39. Cross cut saw is used for

Dressing stones

Cutting large blocks of stones

Cutting hard stones

Cutting soft stones

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

Plank

Log

Baulk

Batten

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