1000+ Building Materials Multiple Choice Question Answer [Solved]

1. With storage, strength of cement
A. Increases
B. Decreases
C. Remains the same
D. None to these
Answer : B

2. The weight of 1 m³ of brick earth, is about
A. 1200 kg
B. 1500 kg
C. 1800 kg
D. 2000 kg
Answer : C

3. Bitumen completely dissolves in
A. Carbon bisulphide
B. Chloroform
C. Coal tar
D. All of these
Answer : D

4. Minimum thickness of wall where single Flemish bond can be used is
A. Half brick thick
B. One brick thick
C. One and a half bricks thick
D. Two bricks thick
Answer : C

5. Polymerization helps to improve the property of
A. Strength
B. Rigidity
C. Elasticity
D. All of these
Answer : D

6. Sea sand used in structures causes
A. Dampness
B. Efflorescence
C. Disintegration
D. All of these
Answer : D

7. Wrought iron is manufactured from pig iron by
A. Refining
B. Pudding
C. Shingling
D. All the above
Answer : D

8. Early attainment of strength in rapid hardening cement is mainly due to
A. Gypsum
B. Finer grinding
C. Tri-calcium silicate
D. Tri-calcium aluminate
Answer : B

9. Pick up the correct statement from the following:
A. Melamine is obtained from calcium carbide
B. Formaldehyde is prepared synthetically from methane
C. The melamine when reacted with formaldehyde forms the melamineformaldehyde resin
D. All the above
Answer : D

10. The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
A. Quarrying of stones
B. Blasting of stones
C. Seasoning of stones
D. Dressing of stones
Answer : D

11. Asbestos
A. Is an excellent insulator for heat and electricity
B. Is fire-proof and acid proof
C. Has sp. gravity equal to 3.10
D. All the above
Answer : D

12. The material generally not used as extender in paints, is
A. Powdered silica
B. Gypsum
C. Talc
D. Zinc white
Answer : D

13. Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength The correct answer is
A. (i) and (ii)
B. (ii) and (iii)
C. (iii) and (iv)
D. (i) and (iv)
Answer : D

14. Quartzite, a metamorphic stone is
A. Hard
B. Brittle
C. Crystalline
D. All the above
Answer : D

15. Rocks formed due to alteration of original structure due to heat and excessive pressure are called
A. Sedimentary rocks
B. Igneous rocks
C. Metamorphic rocks
D. None of these
Answer : C

16. The commonly used drying oil for oil paints, is
A. Olive oil
B. Linseed oil
C. Kerosene oil
D. Acetate of lead
Answer : D

17. Iron ore may contain
A. Carbon
B. Silicon
C. Phosphorus and manganese
D. All the above
Answer : D

18. Mastic asphalt is
A. Acid resisting material
B. Non-corrosive material
C. Corrosive material
D. Heating-resisting material
Answer : B

19. Refractory bricks resist
A. High temperature
B. Chemical action
C. Dampness
D. All the above
Answer : A

20. For a 50 kg cement bag water required, is
A. 16.5 litres
B. 18.5 litres
C. 20.5 litres
D. 22.5 litres
Answer : D

21. The size of modular bricks, is
A. 10 × 10 × 9 cm
B. 19 × 9 × 9 cm
C. 22.5 × 10 × 8.5 cm
D. 22.5 × 8.0 × 9 cm
Answer : B

22. The most commonly used synthetic abrasive is
A. Aluminium carbide
B. Boric acid
C. Silicon
D. All of these
Answer : D

23. Name the type of cement from the following for canal linings:
A. Sulphate resisting cement
B. Rapid hardening cement
C. Quick setting cement
D. Pozzolana cement
Answer : A

24. The normal curing period for lime mortar, is:
A. 1 day
B. 3 days
C. 7 days
D. 10 days
Answer : C

25. Stones used for the construction of retaining walls must be
A. Soft
B. Hard
C. Light
D. Heavy
Answer : D

26. The property by virtue of which lime sets under water, is known as
A. Slacking
B. Setting
C. Hydraulicity
D. Calcining
Answer : C

27. Bitumen may be dissolved in
A. Carbondioxide
B. Water
C. Sodium chloride
D. Carbon disulphide
Answer : D

28. The standard size of masonry bricks, is
A. 18 cm × 8 cm × 8 cm
B. 19 cm × 9 cm × 9 cm
C. 20 cm × 10 cm × 10 cm
D. 21 cm × 11 cm × 11 cm
Answer : B

29. Which of the following ingredients of the brick earth enables the brick to retain its shape?
A. Alumina
B. Silica
C. Iron
D. Magnesia
Answer : B

30. Bitumen paints offer
A. Pleasing surface
B. Hard surface
C. Smooth surface
D. Protective surface
Answer : D

31. The type of steel used for precision levelling staff, is
A. Titanium steel
B. Carbon steel
C. Invar
D. Stainless steel
Answer : C

32. Varnish is a transparent or semi-transparent solution of resinous substances in
A. Alcohol
B. Linseed
C. Turpentine
D. All the above
Answer : D

33. For a good building stone, its specific gravity should the greater than
A. 1.5
B. 1.7
C. 2.2
D. 2.7
Answer : D

34. Dextrin is
A. Animal glue
B. Starch glue
C. Albumin glue
D. Rubber based adhesive
Answer : D

35. Which of the following is a rock?
A. Quartz
B. Mica
C. Gypsum
D. None of the above
Answer : C

36. The base material for distemper, is
A. Chalk
B. Lime
C. Lime putty
D. Cement wash
Answer : A

37. The most fire resistant paints are:
A. Enamel paints
B. Aluminium paints
C. Asbestos paints
D. Cement paints
Answer : C

38. The low voltage porcelain is mainly used for
A. Switch block
B. Insulating tubes
C. Lamp sockets
D. All of these
Answer : D

39. A rock contains only one mineral. It is called
A. Homogeneous
B. Non-homogeneous
C. Monomineralic
D. Polymineralic
Answer : C

40. A volatile substance added to a paint to make its application easy and smooth, is known as
A. Base
B. Solvent
C. Vehicle
D. None to these
Answer : B

41. Advantage of a clamp compared to a kiln for burning bricks is that
A. It takes less time for burning
B. It gives more output of first class bricks
C. It has less initial cost
D. It is suitable when bricks are required in large numbers
Answer : C

42. In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as
A. English bond
B. Double Flemish bond
C. Zigzag bond
D. Single Flemish bond
Answer : B

43. Slate is formed by metamorphic action on
A. Shale
B. Lime stone
C. Sand stone
D. Granite
Answer : A

44. Which one of the following is used for preparing porcelain?
A. Clay
B. Feldspar
C. Quartz
D. All of these
Answer : D

45. The yield strength and tensile strength of low carbon steel may be improved by the addition of
A. Manganese
B. Chromium
C. Nickel
D. Vanadium
Answer : D

46. Duco paints are
A. Plastic paints
B. Cellulose paints
C. Emulsion paints
D. Oil paints
Answer : D

47. Slump test for concrete is carried out, to determine
A. Strength
B. Durability
C. Workability
D. Water content
Answer : C

48. Fibre glass
A. Retains heat-longer
B. Has a higher strength to weight ratio
C. Is shock proof and fire retardant
D. All the above
Answer : D

49. The practical limit of moisture content achieved in air drying of timber is
A. 5 %
B. 15 %
C. 25 %
D. 35 %
Answer : B

50. Pick up the correct statement from the following:
A. Acid test is done to find out the weathering quality of stones
B. Attrition test is done to find out the rate of wear of stones which are used in road construction
C. Crushing test is done to find out the compressive strength of the stone
D. All the above
Answer : D