1000+ Building Materials MCQ for JEE Main [Solved]

1. If the ore impurities is
A. Clay, lime stone is used as flux
B. Lime stone, clay is used as flux
C. Quartz, lime stone and argillaceous iron ores are used as flux
D. All the above
Answer : D

2. The minimum compressive strength of 1st class bricks should be
A. 75 kg/cm²
B. 90 kg/cm²
C. 100 kg/cm²
D. 120 kg/cm²
Answer : C

3. Pick up the hypabyssal rock from the following:
A. Granite
B. Dolerite
C. Basalt
D. All the above
Answer : B

4. Good quality cement contains higher percentage of
A. Tri-calcium silicate
B. Di-calcium silicate
C. Tri-calcium aluminate
D. Tetra calcium alumino ferrite
Answer : A

5. Putty is
A. Made with finely powdered chalk and linseed oil
B. Used for fixing glass panes
C. Softened by a solution of pearl ash and quick-lime soaked in water
D. All the above
Answer : D

6. The commonly used raw material in the manufacture of cement, is
A. Slate
B. Sand stone
C. Lime stone
D. Basalt
Answer : C

7. Hydraulic lime is obtained by
A. Burning of lime stone
B. Burning of kankar
C. Adding water to quick lime
D. Calcination of pure clay
Answer : B

8. Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below:
A. Both A and R is true and, R is the correct explanation of A
B. Both A and R is 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
Answer : A

9. The process of mixing clay, water and other ingredients to make brick is known as
A. Kneading
B. Moulding
C. Pugging
D. Drying
Answer : A

10. During smelting process, the combination of fuel in the furnace
A. Forms carbon dioxide
B. Carbon dioxide with carbon forms carbon mono-oxide
C. Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2
D. All the above
Answer : D

11. The most commonly used base for timber painting, is
A. Red lead
B. Zinc white
C. White lead
D. Titanium white
Answer : C

12. 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

13. Based on its dry weight, a freshly felled tree may contain water
A. 25 %
B. 50 %
C. 75 %
D. 100 %
Answer : D

14. Expanded metal is
A. Manufactured from steel sheets
B. Used for reinforced concrete in road pavements
C. Measured in term of SWM (short way mesh) and LWM (long way mesh)
D. All the above
Answer : D

15. According to ISI, bitumen is classified into
A. 2 grades
B. 4 grades
C. 8 grades
D. 10 grades
Answer : D

16. The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is
A. 1
B. 2
C. 3
D. 4
Answer : B

17. Basalt is
A. Sedimentary rock
B. Metamorphic rock
C. Extrusive igneous rock
D. Intrusive igneous rock
Answer : C

18. Pick up the correct statement from the following:
A. In stone arches, the stones are placed with their natural beds radial
B. In cornices, the stones are placed with their natural beds as vertical
C. In stone walls, the stones are placed with their natural beds as horizontal
D. All the above
Answer : D

19. The most commonly used retarder in cement is
A. Gypsum
B. Calcium chloride
C. Calcium carbonate
D. None of the above
Answer : A

20. Wrought iron contains carbon about
A. 1.5% to 5.5%
B. 0.5% to 1.75%
C. 0.1% to 0.25%
D. None to these
Answer : C

21. 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

22. A well seasoned timber may contain moisture up to
A. 4 to 6 %
B. 6 to 8 %
C. 8 to 10 %
D. 10 to 12 %
Answer : D

23. Pick up the incorrect statement from the following:
A. Plastics are chemical resistant
B. Plastics are durable
C. Plastics are ductile
D. Plastics are excellent electric insulators
Answer : C

24. Bessemer process is used for the manufacture of
A. Pig iron
B. Cast iron
C. Wrought iron
D. Steel
Answer : D

25. Strength of cement concrete primarily depends upon
A. Quality of water
B. Quantity of aggregate
C. Quantity of cement
D. Water-cement ratio
Answer : D

26. Quick lime
A. Generates heat when added to water
B. Reacts with carbon dioxide
C. May be used for white-washing
D. All the above
Answer : D

27. In a rock calcium carbonate predominates. State whether it is:
A. Siliceous rock
B. Argillaceous rock
C. Calcareous rock
D. None of these
Answer : C

28. Invar contains
A. 12% of nickel
B. 24% of nickel
C. 30% to nickel
D. 36% of nickel
Answer : D

29. 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

30. Pick up the correct statement from the following:
A. The plywoods do not split or crack due to changes in atmosphere
B. The commercial plywoods are available upto 150 cm wide and upto 300 cm long
C. The plywoods possess uniform tensile strength in all directions
D. All the above
Answer : D

31. The rocks having alumina or clay as their major constituents are known as
A. Siliceous rocks
B. Argillaceous rocks
C. Calcareous rocks
D. Sedimentary rocks
Answer : B

32. The presence of original rounded surface on the manufactured piece of timber, is called
A. Wane
B. Torn grain
C. Diagonal grain
D. Chipmark
Answer : A

33. Linseed oil is used in paints as
A. Thinner
B. Vehicle
C. Base
D. Drier
Answer : D

34. The normal consistency of ordinary Portland cement is about
A. 10 %
B. 20 %
C. 30 %
D. 40 %
Answer : C

35. Portland pozzolana cement possesses
A. Higher resistance to chemical attack
B. Lower heat of hydration
C. Lower shrinkage on drying
D. All the above
Answer : D

36. 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

37. Veneering means
A. Carving out designs on timber planks
B. Chemically treating timber planks
C. Thick layer of superior wood glued to inferior wood
D. Thin layer of superior wood glued to inferior wood
Answer : C

38. A mortar joint in masonry which is normal to the face of wall is known as
A. Bed joint
B. Wall joint
C. Cross joint
D. Bonded joint
Answer : C

39. With increase in moisture content, the bulking of sand
A. Increases
B. Decreases
C. First increases to a certain maximum value and then decreases
D. First decreases to a certain minimum value and then increases
Answer : C

40. The harmonious mixing of the clay ingredients, is known as
A. Weathering
B. Blending
C. Tempering
D. None of these
Answer : B

41. For testing compressive strength of cement, the size of cube used is
A. 50 mm
B. 70.6 mm
C. 100 mm
D. 150 mm
Answer : A

42. The commonly used base for iron and steel work, is
A. Red lead
B. Zinc white
C. White lead
D. Titanium white
Answer : A

43. 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
A. (i) and (iv)
B. (ii) and (iii)
C. (i) and (ii)
D. (iii) and (iv)
Answer : B

44. Durability of building stone is affected by its
A. Chemical composition
B. Texture
C. Resistance to atmosphere
D. All the above
Answer : D

45. The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout
A. The monsoon
B. The winter
C. The summer
D. None of these
Answer : A

46. Bitumen felt is used for
A. Water proofing
B. Damp proofing
C. Both (A) and (B)
D. Neither (A) nor (B)
Answer : C

47. A heavy stone is suitable for
A. Arches
B. Rubble masonry
C. Roads
D. Retaining walls
Answer : D

48. The commonly used thinner in oil paints, is
A. Naphtha
B. Turpentine
C. Both (a) and (b)
D. None the these
Answer : C

49. Duco is one of the patent forms of
A. Emulsion paints
B. Plastic paints
C. Bituminous paints
D. Cellulose paints
Answer : D

50. Geologically, marble is known as
A. Sedimentary rock
B. Igneous rock
C. Metamorphic rock
D. Stratified rock
Answer : C