Q. Which of the following statement is correct ?

  • (A) The sub-base thickness is directly proportional to the group index of the soil
  • (B) The higher the group index of the soil, the larger is the thickness of the sub-base
  • (C) If the group index value of the sub-base is between 5 and 9, then the sub-base is poor
  • (D) all of the above
πŸ’¬ Discuss
βœ… Correct Answer: (D) all of the above

Q. The longitudinal levels, in detailed survey of a hill road, should be taken at ............... intervals ?

  • (A) 4 m
  • (B) 6 m
  • (C) 8 m
  • (D) 10 m
πŸ’¬ Discuss
βœ… Correct Answer: (D) 10 m

Q. The longitudinal joints may be ?

  • (A) tongue and groove type
  • (B) butt type
  • (C) weakened plane type
  • (D) all of these
πŸ’¬ Discuss
βœ… Correct Answer: (D) all of these

Q. In CBR test, the value of CBR is calculated at ?

  • (A) 2.5 mm penetration only
  • (B) 5 mm penetration only
  • (C) both 2.5 and 5 penetration
  • (D) none of these
πŸ’¬ Discuss
βœ… Correct Answer: (C) both 2.5 and 5 penetration

Q. A camber consisting of two straight slopes joining at the centre is called ?

  • (A) barrel camber
  • (B) sloped camber
  • (C) composite camber
  • (D) none of the these
πŸ’¬ Discuss
βœ… Correct Answer: (B) sloped camber

Q. The road surfacing should be ?

  • (A) impervious
  • (B) durable
  • (C) stable
  • (D) any one of these
πŸ’¬ Discuss
βœ… Correct Answer: (D) any one of these

Q. A water bound macadam road is an example of ?

  • (A) rigid pavement
  • (B) semi-rigid pavement
  • (C) flexible pavement
  • (D) none of these
πŸ’¬ Discuss
βœ… Correct Answer: (C) flexible pavement

Q. The super structure of a road is called ?

  • (A) wearing layer
  • (B) wearing course
  • (C) road surfacing
  • (D) any one of these
πŸ’¬ Discuss
βœ… Correct Answer: (D) any one of these

Q. The steepest gradient which is to be permitted on the road is called ?

  • (A) maximum gradient
  • (B) limiting gradient
  • (C) both (a) and (b)
  • (D) none of these
πŸ’¬ Discuss
βœ… Correct Answer: (C) both (a) and (b)

Q. The total rise or fall between any two points chosen on the alignment divided by the horizontal distance between the two points, is called ?

  • (A) average gradient
  • (B) exceptional gradient
  • (C) ruling gradient
  • (D) floating gradient
πŸ’¬ Discuss
βœ… Correct Answer: (A) average gradient

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