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MCQs

Total Questions : 203 | Page 15 of 21 pages
Question 141. Pick up the correct statement from the following:
  1.    The topographical maps of the Survey of India are useful in the mountainous region for tunnelling.
  2.    The height point on the ridge is fixed with the help of reciprocal ranging
  3.    The accuracy of 1 in 10, 000 is required for planimetric control
  4.    All the above.
 Discuss Question
Answer: Option D. -> All the above.
Answer: (d).All the above.
Question 142. High pressure grouting is generally restored for concreting in the lining if the rock strata is:
  1.    highly fissured
  2.    poor
  3.    likely to get seepage of water
  4.    All of the above.
 Discuss Question
Answer: Option D. -> All of the above.
Answer: (d).All of the above.
Question 143. For hauling muck from the tunnel, the following type of muck-car is used :
  1.    muck box
  2.    balle-ship
  3.    side dump car
  4.    All of these.
 Discuss Question
Answer: Option D. -> All of these.
Answer: (d).All of these.
Question 144. Which one of the following methods is adopted for permanent drainage of tunnels :
  1.    provision of longitudinal drains
  2.    continuous open drains
  3.    concrete lining
  4.    All the above.
 Discuss Question
Answer: Option D. -> All the above.
Answer: (d).All the above.
Question 145. Pick up the correct statement regarding drilling a tunnel from the following:
  1.    Holes are drilled by pneumatically operated rock drills
  2.    One drill is required for each 4 to 5 m² force area
  3.    The diameter of the bore hole at the deepest point should be 6 mm more than the diameter of the cartridge
  4.    All of the above.
 Discuss Question
Answer: Option D. -> All of the above.
Answer: (d).All of the above.
Question 146. 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
Answer: (c).75% of the ruling gradient
Question 147. 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
Answer: (b).trimmers
Question 148. 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 the these.
 Discuss Question
Answer: Option D. -> All the these.
Answer: (d).All the these.
Question 149. Pick up the mechanical ventilation method used for tunnels from the following:
  1.    blowing fresh air by ducts to the face of tunnel
  2.    exhausting foul air by ducts from the face of the tunnel and permitting fresh air through the tunnel
  3.    blowing fresh air and exhausting foul air by ducts
  4.    all the above.
 Discuss Question
Answer: Option D. -> all the above.
Answer: (d).all the above.
Question 150. The method of draining in the tunnels, is generally known as
  1.    foredrainage
  2.    dewatering
  3.    permanent drainage
  4.    All of the above.
 Discuss Question
Answer: Option D. -> All of the above.
Answer: (d).All of the above.

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