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MCQs

Total Questions : 59 | Page 5 of 6 pages
Question 41. Pipe drains run _______________
  1.    longitudinally on the bed and transverse to the length of canal on the side slopes
  2.    longitudinally to the length of the canal on the side slopes and transverse to the bed
  3.    longitudinally to the length of the canal
  4.    transverse to the bed
 Discuss Question
Answer: Option A. -> longitudinally on the bed and transverse to the length of canal on the side slopes
Answer: (a).longitudinally on the bed and transverse to the length of canal on the side slopes
Question 42. Pressure relief valves may help in ___________
  1.    releasing the hydrostatic pressure
  2.    holding the hydrostatic pressure
  3.    increasing the hydrostatic pressure
  4.    may increase or decrease the hydrostatic pressure
 Discuss Question
Answer: Option A. -> releasing the hydrostatic pressure
Answer: (a).releasing the hydrostatic pressure
Question 43. The permeability of lining is also governed by the depth of water in the canal and type of subgrade soil.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 44. Which of the following statement is wrong about the requirement of good lining?
  1.    The lining should be able to withstand the differential sub-soil pressure
  2.    Brick lining, concrete lining or precast slab lining can be easily repaired as compared to cast-in-situ concrete lining
  3.    The hydraulic efficiency generally reduces with time
  4.    Brick tile lining may provide better abrasion resistance than cement concrete and boulder lining
 Discuss Question
Answer: Option D. -> Brick tile lining may provide better abrasion resistance than cement concrete and boulder lining
Answer: (d).Brick tile lining may provide better abrasion resistance than cement concrete and boulder lining
Question 45. Design a lined canal to carry a discharge of 400 cumecs and slope is 1 in 6000. Take side slopes as 1 : 1 and rugosity constant as 0.012. Assume limiting velocity as 3 m/sec.
  1.    Total Depth = 6.3 m, Bed Width = 15 m
  2.    Total Depth = 6.28 m, Bed Width = 14.2 m
  3.    Total Depth = 6.5 m, Bed Width = 14 m
  4.    Total Depth = 6.25 m, Bed Width = 14.4 m
 Discuss Question
Answer: Option D. -> Total Depth = 6.25 m, Bed Width = 14.4 m
Answer: (d).Total Depth = 6.25 m, Bed Width = 14.4 m
Question 46. What type of major dangers can the lining of canals extinguish?
  1.    Leakages
  2.    Floods
  3.    Water-logging
  4.    Seepage Losses
 Discuss Question
Answer: Option B. -> Floods
Answer: (b).Floods
Question 47. Depending on what factor does the lining of a canal can increase the capacity of the canal?
  1.    Width of the Canal
  2.    Type of Flow
  3.    Velocity
  4.    Side Slope
 Discuss Question
Answer: Option C. -> Velocity
Answer: (c).Velocity
Question 48. Mathematically, depending on what factor we can say velocity increases the capacity of the canal?
  1.    Coefficient of Viscosity
  2.    Coefficient of Capillarity
  3.    Coefficient of Roughness
  4.    Coefficient of Resistance
 Discuss Question
Answer: Option C. -> Coefficient of Roughness
Answer: (c).Coefficient of Roughness
Question 49. What costs are reduced with the help of lining a canal?
  1.    A.R and M.O Costs
  2.    Irrigation Water Costs
  3.    Construction Costs
  4.    Transportation Costs
 Discuss Question
Answer: Option A. -> A.R and M.O Costs
Answer: (a).A.R and M.O Costs
Question 50. Removal of silt considerably reduces the annual expenditure required on unlined channels for desilting.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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