building materials and construction MCQs – Page 2

Practise focused building materials and construction questions with marked answers for exam preparation and subject revision.

building materials and construction Mcqs
21. In which of the following directions, the strength of timber is maximum ?
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A. 45 to grains

B. same in all directions

C. perpendicular to grains

D. parallel to grains
22. Which of the following ingredients of the brick earth enables the brick to retain its shape ?
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A. alumina

B. silica

C. magnesia

D. iron

23. Paints with white lead base are suitable for painting of______________________?
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A. wood work

B. iron work

C. both wood work and iron work

D. none of the above

24. Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth ?
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A. lime stone and alumina

B. silica and alkalies

C. alkalies and magnesium

D. alumina and iron

25. Depth or height of the arch is the________________?
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A. vertical distance between springing line and intrados

B. none of the above

C. perpendicular distance between intra-dos and extrados

D. perpendicular distance between springing line and extrados

26. A mortar joint in masonry which is normal to the face of wall is known as_________________?
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A. wall joint

B. cross joint

C. bed joint

D. bonded joint

27. The bearing capacity of a water logged soil can be improved by_____________?
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A. compacting the soil

B. draining the soil

C. grouting

D. increasing the depth of foundation

28. The slenderness ratio for masonry walls should not be more than_____________?
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A. 30

B. 10

C. 20

D. 40

29. Which of the following is the purest form of iron ?
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A. wrought iron

B. cast iron

C. mild steel

D. high carbon steel

30. The most commonly used retarder in cement is_________________?
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A. calcium carbonate

B. calcium chloride

C. none of the above

D. gypsum
31. Slate is formed by metamorphic action on______________?
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A. lime stone

B. shale

C. sand stone

D. granite

32. Which of the following should be used for hearting of thicker walls ?
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A. brick bats

B. queen closer

C. stretchers

D. headers
33. The process of mixing clay, water and other ingredients to make brick is known as______________?
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A. moulding

B. kneading

C. drying

D. pugging

34. A good building stone should not absorb water more than_____________?
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A. 10%

B. 5%

C. 15%

D. 20%

35. Which of the following sedimentary rocks changes into quartzite by metamorphic action ?
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A. lime stone

B. sand stone

C. shale

D. gypsum

36. The slump recommended for mass concrete is about_______________?
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A. 25 mm to 50 mm

B. 125 mm to 150 mm

C. 50 mm to 100 mm

D. 100 mm to 125 mm

37. The most important tool in brick laying for lifting and spreading mortar and for forming joints is____________?
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A. bolster

B. scutch

C. trowel

D. square

38. Which of the following metamorphic rocks has the most weather resisting characteristics ?
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A. slate

B. quartzite

C. marble

D. lime stone

39. Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. Select your answer according to the coding system given below ?
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A. Both A and R are true and R is the correct explanation of A

B. Both A and R are true but R is not the correct explanation of A

C. A is true but R is false

D. A is false but R is true

40. Sapwood consists of______________?
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A. thin fibre which extends from the pith outwards and holds the annular rings together

B. innermost annular rings around the pith

C. portion of timber between heartwood and cambium layer

D. thin layers below the bark