Highway Engineering

91. If L is the length of vehicles in metres, C is the clear distance between two consecutive vehicles (stopping sight distance), V is the speed of vehicles in km/hour, the maximum number N of vehicles/hour, is

  1. N = 1000 V / (L + C)
  2. N = (L + C) / 1000 V
  3. N = 1000 L / (C + V)
  4. N = 1000 C / (L + V)

Correct answer: (A)
N = 1000 V / (L + C)

92. If metres is the distance between extreme axles of a vehicle, its gross load should not exceed

  1. 1525 (L + 4.3) - 14.7 L2
  2. 1526 (L + 5.3) - 14.7 L2
  3. 1525 (L + 6.3) - 14.7 L2
  4. 1525 (L + 7.3) - 14.7 L2

Correct answer: (D)
1525 (L + 7.3) - 14.7 L2

93. If N is deviation angle the length L of a parabolic vertical curve for overtaking sight distance S, is

  1. NS2/9.6 if L > S
  2. NS2/9.6 if L < S
  3. 2S - 9.6/N if L < S
  4. Both (A) and (C)

Correct answer: (D)
Both (A) and (C)

94. If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is

  1. NS2/4.4 if L > S
  2. 2S - 4.4/N if L < S
  3. 2S - 4.4/N if L > S
  4. Both (a) and (b)

Correct answer: (D)
Both (a) and (b)

95. If N is the algebraic difference of grades, S is the head light beam distance in metres, the length (L) of a valley curve, is

  1. NS2/4
  2. NS2/6
  3. NS2/9.6
  4. NS2/4.8

Correct answer: (A)
NS2/4

96. If N is the algebraic difference of grades, S is the minimum sight distance in metres, the length (L) of a summit curve is

  1. NS/4
  2. NS2/4
  3. N2S/4
  4. (NS)2/4

Correct answer: (B)
NS2/4

97. If N is the net difference of grades, S is the minimum overtaken sight distance in metres, the length (L) of a summit curve, is

  1. NS/4
  2. NS2/4
  3. NS2/4.8
  4. NS2/9.6

Correct answer: (D)
NS2/9.6

98. If no super elevation is provided on a road along curves, pot holes may develop at

  1. Inner edge of the road
  2. Outer edge of the road
  3. Centre of the road
  4. Nowhere on the road

Correct answer: (B)
Outer edge of the road

99. If P is the number of vehicles per day at last census, r is the increase in traffic and n is the number of years passed after last census, number of vehicles A per day for design, is

  1. P (1 + r)n
  2. P (1 - r)n
  3. P (1 + r)-n+5
  4. P (1 + r)55n

Correct answer: (C)
P (1 + r)-n+5

100. If present A.D.T. is 5000 vehicles and annual increase is 10%, the average future flow after 5 years will be

  1. 6050 vehicles
  2. 7050 vehicles
  3. 8050 vehicles
  4. 9050 vehicles

Correct answer: (C)
8050 vehicles

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