Building Materials MCQ Questions & Answers | Civil Engineering

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51.
Pick up the correct statement from the following:

A. In basic Bessemer process, the steel heats the converter

B. In open-hearth process, the furnace heats the steel

C. In Siemens process, the impurities of pig iron are oxidized by the oxygen of the ore

D. All the above

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52.
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

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53.
Pick up the correct characteristic of Pyroxene from the following:

A. It forms octagonal crystals

B. It converts to chlorine by hydration

C. Its density is 2.3 to 3.6 g/cm²

D. Its hardness is 5 to 6

E. All the above

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54.
Pick up the correct statement regarding low heat cement from the following:

A. It possesses less compressive strength

B. Its initial setting time is about one hour

C. Its final setting time is about 10 hours

D. All the above

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55.
Pick up the correct statement from the following:

A. Lime is available in Free State

B. Lime is available by dissolving calcium carbonate in water

C. Lime is available by calcining calcium carbonate at 900°C

D. Lime is nothing but calcium chloride

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56.
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 melamine-formaldehyde resin

D. All the above

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57.
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

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58.
Pick up the correct statement from the following:

A. Plastics have generally low melting point

B. The coefficient of thermal expansion of plastics is about three times than that of steel

C. The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67

D. All the above

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59.
Pick up the polymineralic rock from the following:

A. Quartz sand

B. Pure gypsum

C. Magnesite

D. Granite

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60.
Pick up the correct statement from the following:

A. Quick lime is obtained by burning pure lime stone

B. Hydraulic lime is obtained by burning lime stone containing clay 5% to 30%

C. Poor lime is obtained by burning lime stone containing impurities more than 5%

D. All the above

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Building Materials MCQ Questions & Answers | Civil Engineering

51. Pick up the correct statement from the following:

Answer & Solution

52. Pick up the correct statement from the following:

Answer & Solution

53. Pick up the correct characteristic of Pyroxene from the following:

Answer & Solution

54. Pick up the correct statement regarding low heat cement from the following:

Answer & Solution

55. Pick up the correct statement from the following:

Answer & Solution

56. Pick up the correct statement from the following:

Answer & Solution

57. Pick up the incorrect statement from the following:

Answer & Solution

58. Pick up the correct statement from the following:

Answer & Solution

59. Pick up the polymineralic rock from the following:

Answer & Solution

60. Pick up the correct statement from the following:

Answer & Solution

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51.
Pick up the correct statement from the following:

52.
Pick up the correct statement from the following:

53.
Pick up the correct characteristic of Pyroxene from the following:

54.
Pick up the correct statement regarding low heat cement from the following:

55.
Pick up the correct statement from the following:

56.
Pick up the correct statement from the following:

57.
Pick up the incorrect statement from the following:

58.
Pick up the correct statement from the following:

59.
Pick up the polymineralic rock from the following:

60.
Pick up the correct statement from the following: