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MCQs

Total Questions : 1424 | Page 6 of 143 pages
Question 51. Pick up the correct statement from the following:
  1.    Rusting is caused due to combined action of air, moisture and carbon dioxide
  2.    During rusting, first ferrous bicarbonates are formed
  3.    On further oxidation ferrous bicarbonates get converted to ferric bicarbonates
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 52. Pick up the correct statement from the following:
  1.    Slaked lime contains calcium hydroxide
  2.    Quick lime contains calcium oxide
  3.    Slaked lime may be obtained from quick lime
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 53. Pick up the correct statement from the following:
  1.    Soft stones are required for carving
  2.    Light stones are required for arches
  3.    Hard stones are required to stand high pressure
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 54. Pick up the correct statement from the following:
  1.    Solder material is an alloy which melts at a temperature above 400°C
  2.    Brazing is done at temperature above 600°C to 1100°C
  3.    Brazing joint is stronger than the solder joint
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 55. Pick up the correct statement from the following:
  1.    Steel produced by open hearth process is milder than that obtained by the Bessemer process
  2.    Engineers prefer open hearth steel for structural purpose as it is more homogenous
  3.    Basic Bessemer process is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 56. Pick up the correct statement from the following:
  1.    Styrene resin is produced from ethylene which is made from petroleum
  2.    Styrene resin is light in weight
  3.    Styrene resin transmits ultraviolet waves of light
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 57. Pick up the correct statement from the following:
  1.    The average crushing strength of hand moulded bricks is 6000 t/m2
  2.    The average tensile strength of hand moulded brick is 200 t/m2
  3.    The average shearing strength of hand moulded brick is 600 t/m2
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 58. Pick up the compound responsible for early strength of cement from the following:
  1.    Tetra-calcium alumino-ferrite
  2.    Tri-calcium silicate
  3.    Tri-calcium aluminate
  4.    Di-calcium silicate
 Discuss Question
Answer: Option B. -> Tri-calcium silicate
Question 59. Pick up the correct statement from the following:
  1.    The distinct plane of division along which a stone can easily be split, is called natural bed of stone
  2.    The natural bed of sedimentary rocks is along the planes of stratification
  3.    The natural bed of igneous rocks is not defined
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 60. Pick up the correct statement from the following:
  1.    The free quartz suddenly expands at a temperature lower than 600°C
  2.    The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2
  3.    The sand stone with silicates resist a fire in a better way
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above

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