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MCQs

Total Questions : 203 | Page 2 of 21 pages
Question 11. Which one of the following methods of tunnelling does not require the use of time bearing?
  1.    Linear plate method
  2.    Shield method
  3.    Compressed air method
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 12. To attain the required shape of the tunnel section, we use:
  1.    Easers
  2.    Trimmers
  3.    Cut holes
  4.    Chisels
 Discuss Question
Answer: Option B. -> Trimmers
Question 13. For full face method, the excavation to be done is generally divided into
  1.    Two sections
  2.    Three sections
  3.    Four sections
  4.    Five sections
 Discuss Question
Answer: Option B. -> Three sections
Question 14. The most suitable soil for compressed air tunnelling is
  1.    Silt
  2.    Sand
  3.    Clay
  4.    Gravel
 Discuss Question
Answer: Option C. -> Clay
Question 15. Which one of the following linings is suitable for shield driven tunnels particularly in the sub-aqueous regions?
  1.    Brick lining
  2.    Stone lining
  3.    Timber line
  4.    Cast iron lining
 Discuss Question
Answer: Option D. -> Cast iron lining
Question 16. "Consider the following situations.1.Soil is soft.2.Volume of existing surface traffic on the alignment is heavy.3.Track is at a deeper level.4.Water table is high.In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at
"
  1.    1 and 2
  2.    1 and 3
  3.    1 and 4
  4.    2 and 3
 Discuss Question
Answer: Option C. -> 1 and 4
Question 17. For tunnels exceeding 300 m in length, the grade should be provided below
  1.    50% of the ruling gradient
  2.    60% of the ruling gradient
  3.    75% of the ruling gradient
  4.    80% of the ruling gradient
 Discuss Question
Answer: Option C. -> 75% of the ruling gradient
Question 18. In case of railways,
  1.    A detour round the hill is preferred
  2.    A open cut is preferred
  3.    Tunnelling is preferred
  4.    All the above
 Discuss Question
Answer: Option C. -> Tunnelling is preferred
Question 19. Which one of the following tunneling methods is used for laying underground sewers?
  1.    Needle beam method
  2.    Army method
  3.    German method
  4.    Italian method
 Discuss Question
Answer: Option B. -> Army method
Question 20. In compressed air tunnelling, the volume of free air provided is
  1.    6 m³ per second per m² of face area
  2.    6 m³ per minute per m² of face area
  3.    20 m³ per minute per m² of face area
  4.    6 m³ per hour per m² of face area
 Discuss Question
Answer: Option B. -> 6 m³ per minute per m² of face area

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