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MCQs

Total Questions : 61 | Page 6 of 7 pages
Question 51. White Portland cement is obtained due to sintering at _______
  1.    1050°C
  2.    1200°C
  3.    1600°C
  4.    2000°C
 Discuss Question
Answer: Option C. -> 1600°C
Answer: (c).1600°C
Question 52. The diameter of the selected fibers is of the range of _______
  1.    0.1 – 0.155
  2.    0.01 – 0.1
  3.    0.0025 – 0.01
  4.    0.00025 – 0.00125
 Discuss Question
Answer: Option D. -> 0.00025 – 0.00125
Answer: (d).0.00025 – 0.00125
Question 53. Staple fibers differ from continuous fibers due to the use of ________
  1.    Air blower
  2.    Manual force
  3.    Winding tube
  4.    Lubrication
 Discuss Question
Answer: Option A. -> Air blower
Answer: (a).Air blower
Question 54. Which of the following is not a type of glass insulation?
  1.    Bonded
  2.    Block
  3.    Blanket
  4.    Bore
 Discuss Question
Answer: Option D. -> Bore
Answer: (d).Bore
Question 55. What is the operating temperature of high silica glass?
  1.    300 F
  2.    550 F
  3.    1250 F
  4.    1830 F
 Discuss Question
Answer: Option D. -> 1830 F
Answer: (d).1830 F
Question 56. What is the operating temperature of borosilicate glass?
  1.    200-300 F
  2.    350-550 F
  3.    600-1000 F
  4.    1200-1800 F
 Discuss Question
Answer: Option C. -> 600-1000 F
Answer: (c).600-1000 F
Question 57. What is the function of petroleum coke?
  1.    Lubrication
  2.    In candles
  3.    As fuel
  4.    As solvent
 Discuss Question
Answer: Option C. -> As fuel
Answer: (c).As fuel
Question 58. Carbon black and hydrogen can be manufactured using ________
  1.    Natural gas
  2.    Coal gas
  3.    Oil gas
  4.    Water gas
 Discuss Question
Answer: Option A. -> Natural gas
Answer: (a).Natural gas
Question 59. Coal gas is attained from to a process carried out at ________
  1.    300°C
  2.    700°C
  3.    900°C
  4.    1300°C
 Discuss Question
Answer: Option D. -> 1300°C
Answer: (d).1300°C
Question 60. Which of these gases is used for heating open-hearth furnaces?
  1.    Oil gas
  2.    Producer gas
  3.    Biogas
  4.    Water gas
 Discuss Question
Answer: Option B. -> Producer gas
Answer: (b).Producer gas

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