Transportation Engineering – Multiple Choice Questions (MCQs)

1. 73. What is "pumping" in rigid pavements?

   • A. Water accumulating on the surface
   • B. Ejection of water and fine material through joints or cracks due to slab deflection under load
   • C. A type of joint
   • D. The process of compacting concrete

2. 74. The "dowel bars" in rigid pavements are used to:

   • A. Prevent cracking
   • B. Transfer load across transverse joints
   • C. Provide drainage
   • D. Anchor the pavement to the subgrade

3. 75. What is the main function of "tie bars" in rigid pavements?

   • A. To connect adjacent slabs across longitudinal joints
   • B. To provide vertical support
   • C. To transfer load
   • D. To prevent horizontal movement

4. 76. The minimum clear width for a single lane bridge is generally:

   • A. 2.5 m
   • B. 3.75 m
   • C. 4.25 m
   • D. 5.5 m

5. 77. What is "run-off" in super-elevation transition?

   • A. The length of the curve
   • B. The length over which super-elevation is introduced
   • C. The amount of water runoff
   • D. The speed reduction

6. 78. The "coefficient of friction" between pavement and tire is crucial for calculating:

   • A. Camber
   • B. Super-elevation
   • C. Stopping sight distance
   • D. Ruling gradient

7. 79. What is the "design hour volume (DHV)"?

   • A. The average hourly traffic volume
   • B. The 30th highest hourly volume in a year
   • C. The peak hourly volume
   • D. The minimum hourly volume

8. 80. The "passenger car equivalent (PCE)" for a heavy vehicle is typically:

   • A. Less than 1
   • B. Equal to 1
   • C. Greater than 1
   • D. Zero

9. 81. What is the purpose of "road markings"?

   • A. To decorate the road
   • B. To provide guidance and information to road users
   • C. To absorb sound
   • D. To indicate land ownership

10. 82. The "traffic sign" that is generally circular in shape with a red border is a:

    • A. Warning sign
    • B. Mandatory sign
    • C. Informatory sign
    • D. Direction sign

11. 83. What is the "design life" of a flexible pavement?

    • A. Typically 5-10 years
    • B. Typically 15-20 years
    • C. Typically 25-30 years
    • D. Typically 50 years

12. 84. The most common type of rail used in India is:

    • A. Flat-footed rail
    • B. Double-headed rail
    • C. Bull-headed rail
    • D. Grooved rail