Highway Engineering exam questions pdf – Set 17

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Q1. For the design of cement concrete pavement for corner loading, Indian Road Congress recommends the use of

(A) Westergaard’s formula
(B) Kelly’s formula
(C) Goldbeck’s formula
(D) Picker’s formula

Answer: (D) Picker’s formula

Q2. Newly constructed pavement with ordinary Portland cement attains its working strength after

(A) 7 days
(B) 14 days
(C) 21 days
(D) 28 days

Answer: (D) 28 days

Q3. For a 6.6 m wide two lane pavement, berms are provided on either side having a width of

(A) 1.00 m
(B) 1.25 m
(C) 1.50 m
(D) 1.75 m

Answer: (C) 1.50 m

Q4. On the recommendations of Indian Road Congress, the ruling gradient in plains, is

(A) 1 in 15
(B) 1 in 20
(C) 1 in 30
(D) 1 in 45

Answer: (C) 1 in 30

Q5. The maximum comfortable retardation applied to moving vehicles, is

(A) 3.42 m/sec2
(B) 4.42 m/sec2
(C) 5.56 m/sec2
(D) 7.80 m/sec2

Answer: (A) 3.42 m/sec2

Q6. The wall constructed for the stability of an excavated portion of a road on the hill side, is known as

(A) Retaining wall
(B) Breast wall
(C) Parapet wall
(D) All the above

Answer: (B) Breast wall

Q7. The tangent length of a simple circular curve of radius R deflecting through θ°, is

(A) R tan θ
(B) R tan θ/2
(C) R sin θ
(D) R sin θ/2

Answer: (B) R tan θ/2

Q8. For a vehicle moving with a speed of 80 km per hour, the brake reaction time, in ordinary cases, is

(A) 1 sec
(B) 1.5 sec
(C) 2.0 sec
(D) 2.5 sec

Answer: (D) 2.5 sec

Q9. Which one of the following transportation systems is not used for the conveyance of passengers in India?

(A) Railways
(B) Roads
(C) Shipping
(D) Pipe lines

Answer: (D) Pipe lines

Q10. While calculating the sight distances, the driver’s eye above road surface, is assumed

(A) 90 cm
(B) 100 cm
(C) 110 cm
(D) 120 cm

Answer: (D) 120 cm

Q11. Horizontal curves on highways are provided

(A) To break the monotony of driving
(B) To discourage the tendency to increase speed
(C) To decrease the mental strain on drivers
(D) All the above

Answer:(D) All the above

Q12. If W is the weight of a vehicle negotiating an upgrade 1 : S along a track having co-efficient of resistance μ, the tractive force T is given by

(A) T = p/(μ + S)
(B) p = T/(μ + S)
(C) S = p/(μ + T)
(D) μ = p/(T + S)

Answer: (D) μ = p/(T + S)

Q13. On earth roads, the camber should preferably be

(A) 1 in 20 to 1 in 24
(B) 1 in 30 to 1 in 48
(C) 1 in 15 to 1 in 20
(D) 1 in 10 to 1 in 15

Answer: (A) 1 in 20 to 1 in 24

Q14. Bottom-most component of a flexible pavement, is

(A) Sub-grade
(B) Sub-base
(C) Base
(D) Base course

Answer: (A) Sub-grade

Q15. The normal road land width for a major district road in open area, is

(A) 45 m
(B) 25 m
(C) 15 m
(D) 12 m

Answer: (B) 25 m

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