TRANSPORTATION ENGINEERING MCQs – 13 | GPSC | ESE | COMPETITVE EXAMS | CIVIL ENGINEERING

61. Traffic volume is equal to ___.

A.  traffic density/traffic speed

B.  traffic speed/traffic density

C.  Traffic density * Traffic speed

D.  None of the above

Answer: C        Traffic density * Traffic speed

Explanation:

Number of vehicles crossing the particular section of road is per unit time is called Traffic Volume. It is expressed in veh/day, veh/hr, veh/min.

62. The superelevation is ____.

A.  Inversely proportional to the speed of the vehicle

B.  Inversely proportional to the width of the pavement

C.  directly proportional to the speed of the vehicle

D.  directly proportional to the width of the pavement

Answer: C       directly proportional to the speed of the vehicle

Explanation:

e + f = V²/127R

63. Minimum width (in meters) of carriage way for two lane road with raised kerb is ____.

A.  7.5 m

B.  12.0 m

C.  5.5 m

D.  7.0 m

Answer: A     7.5 m

Explanation:

IRC specification for carriage way width are as mentioned below:

1.     Single lane – 3.75m wide

2.     Two lanes without kerb – 7m wide

3.     Two lanes with raised kerb – 7.5m wide

4.     Multi-lane – 3.5m wide

5.     Intermediate carriage – 5.5m wide

64. Design speed of National Highway and state highway roads for plain terrain is ___.

A.  30 to 65 kmph

B.  40 to 50 kmph

C.  65 to 85 kmph

D.  80 to 100 kmph

Answer: D      80 to 100 kmph

Explanation:

65. Equivalent factor for passenger car unit (PCU) for open section of rural roads for passenger car is ___.

A. 0.5

B. 8.0

C.  1.0

D.  1.5

Answer: C        1.0

Explanation: