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MCQs

Total Questions : 77 | Page 5 of 8 pages
Question 41. Selection of excavation method depends on __________
  1.    Type of rocks
  2.    Nature of rocks and ground
  3.    Texture of rocks and ground
  4.    Weather conditions of the place
 Discuss Question
Answer: Option B. -> Nature of rocks and ground
Answer: (b).Nature of rocks and ground
Question 42. Geologically, how many classes of tunnels are recognized?
  1.    2
  2.    3
  3.    5
  4.    4
 Discuss Question
Answer: Option A. -> 2
Answer: (a).2
Question 43. Lithology does not affect which parameter?
  1.    Type of tunnel
  2.    Method of tunnelling
  3.    Strength and extent of lining
  4.    Cost of the project
 Discuss Question
Answer: Option A. -> Type of tunnel
Answer: (a).Type of tunnel
Question 44. Which type of strata is rare in occurrence?
  1.    Vertical strata
  2.    Horizontal strata
  3.    Inclined strata
  4.    Jointed strata
 Discuss Question
Answer: Option B. -> Horizontal strata
Answer: (b).Horizontal strata
Question 45. Which type of rocks requires double lining, i.e., temporary and permanent lining?
  1.    Hard rocks
  2.    Crystalline rocks
  3.    Soft rocks
  4.    Non-crystalline rocks
 Discuss Question
Answer: Option C. -> Soft rocks
Answer: (c).Soft rocks
Question 46. What occurs due to falling of big rock blocks or sides due to release of stresses during tunnelling?
  1.    Rock fall
  2.    Rock bursts
  3.    Blockage
  4.    Water rush
 Discuss Question
Answer: Option B. -> Rock bursts
Answer: (b).Rock bursts
Question 47. Pick the rock considered as soft rocks for tunnelling.
  1.    Granite
  2.    Gabbro
  3.    Basalt
  4.    Shale
 Discuss Question
Answer: Option D. -> Shale
Answer: (d).Shale
Question 48. Layers dipping at angles up to 45° may be called __________
  1.    Moderately inclined strata
  2.    Steeply inclined strata
  3.    Half inclined strata
  4.    Semi-inclined strata
 Discuss Question
Answer: Option A. -> Moderately inclined strata
Answer: (a).Moderately inclined strata
Question 49. Which of the following is not included under preliminary survey?
  1.    Knowing the general topography of the area
  2.    Knowing the lithology of the area
  3.    Knowing the structural condition of the rocks
  4.    Driving the pilot tunnels
 Discuss Question
Answer: Option D. -> Driving the pilot tunnels
Answer: (d).Driving the pilot tunnels
Question 50. In synclinal condition, low pressure areas are found at __________
  1.    Core
  2.    Crust
  3.    Mantle
  4.    Outline
 Discuss Question
Answer: Option B. -> Crust
Answer: (b).Crust

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