MCQ Transportation Engineering

MCQ MCQ Transportation

Q1. The ruling gradient is provided in road design to:

Ensure safety at sharp curves Ensure maximum vehicle speed Avoid excessive vehicle strain Drain rainwater quickly

Q2. Camber in roads is primarily provided for:

Vehicle stability Drainage of water Aesthetic appearance Provide overtaking sight distance

Q3. IRC stands for:

Indian Railway Council Indian Road Congress Indian Roads and Canals Indian Roadways Committee

Q4. The super-elevation on a curve is provided to:

Increase pavement strength Drain water Counteract centrifugal force Improve road aesthetics

Q5. The width of a single lane carriageway as per IRC is:

3.0 m 3.75 m 5.5 m 7.5 m

Q6. The stopping sight distance depends on:

Reaction time Speed of vehicle Friction and gradient All of the above

Q7. The term ‘At-grade intersection’ means:

Flyover crossing Underpass Crossing at same ground level Tunnel crossing

Q8. Bitumen is preferred for road works because it is:

Water-soluble Highly brittle Thermoplastic and adhesive None of these

Q9. Marshall Stability test is conducted to determine:

Soil compaction Bituminous mix strength and flow Aggregate shape Concrete slump

Q10. Design speed for National Highways as per IRC is typically:

30-40 kmph 50-60 kmph 80-100 kmph 110-120 kmph

Q11. The purpose of providing shoulders on a road is to:

Allow overtaking Provide lateral support to pavement Improve aesthetics Reduce vehicle speed

Q12. Flexible pavements distribute wheel loads:

Directly to subgrade Through layer-wise load dispersion Only to base course Through rigid slabs

Q13. Which of the following is not a traffic control device?

Road sign Road marking Traffic signal Camber

Q14. The maximum super-elevation recommended by IRC in plain terrain is:

1 in 25 1 in 20 1 in 15 1 in 12

Q15. Traffic volume is measured in:

Vehicles per hour Vehicles per day Both A and B km/hour

Q16. CBR stands for:

California Bearing Ratio Concrete Bitumen Ratio Compaction Bearing Ratio None of these

Q17. The most important property for aggregates in bituminous construction is:

Toughness Flakiness Water absorption Porosity

Q18. An example of an intersection control device is:

Speed breaker Traffic signal Camber Super-elevation

Q19. Which layer in flexible pavement acts as a wearing surface?

Subgrade Base course Bituminous surface course Sub-base

Q20. Transition curves are provided in horizontal alignment to:

Drain rainwater Gradually introduce centrifugal force Reduce vehicle speed Improve visibility

Q21. The main function of a road subgrade is to:

Serve as drainage layer Provide support to pavement layers Act as wearing surface Control traffic speed

Q22. The desirable camber for bituminous roads in India typically ranges from:

1 in 20 to 1 in 30 1 in 30 to 1 in 50 1 in 40 to 1 in 60 1 in 60 to 1 in 100

Q23. The formula to calculate super-elevation is:

e = v²/gR e = 2v/gR e = gR/v² e = vR/g

Q24. Design of rigid pavements is based on:

Soil strength Flexural strength of concrete Load dispersion properties Vehicle speed

Q25. Which road type is highest in road classification hierarchy?

State Highway Major District Road National Highway Village Road

Q26. Which of the following primarily determines overtaking sight distance?

Reaction time Speed of overtaking and opposing vehicle Road gradient All of these

Q27. In the wheel load distribution of flexible pavements, stress decreases:

Upward Linearly downwards Non-linearly with depth Constant with depth

Q28. Which IS code covers CBR testing for subgrade soils?

IS 2720 (Part 16) IS 2386 IS 456 IS 10262

Q29. The flexible pavement layer directly resting on subgrade is:

Base course Sub-base course Bituminous layer Wearing course

Q30. In rigid pavements, warping stresses are caused by:

Traffic loads only Moisture variation Temperature variation Both traffic and temperature

Q31. The maximum allowable gradient in hilly terrain as per IRC is:

1 in 20 1 in 16 1 in 12 1 in 10

Q32. The design life of National Highway flexible pavements as per IRC:37 is:

10 years 15 years 20 years 25 years

Q33. The aggregate impact value (AIV) for road aggregates should preferably be less than:

30% 35% 40% 45%

Q34. The IRC code for the design of flexible pavements is:

IRC:58 IRC:37 IRC:15 IRC:44

Q35. WBM stands for:

Water Bound Macadam Wet Bitumen Mix Warm Bituminous Material Weak Base Material

Q36. The ideal shape of aggregates for road construction is:

Rounded Flaky Angular Elongated

Q37. Overtaking zones on highways are provided:

In urban areas At horizontal curves On straight stretches with clear sight Near intersections

Q38. The modulus of subgrade reaction is denoted by:

CBR k E N

Q39. The main factor for determining traffic volume is:

Road width Number of vehicles passing a section per unit time Type of surface Type of vehicle

Q40. The permissible axle load for single axle vehicles as per IRC is:

80 kN 100 kN 120 kN 148 kN

Q41. The highest design speed is provided for which type of road as per IRC?

Expressways National Highways State Highways Major District Roads

Q42. Roadway width for a two-lane undivided road in plain terrain as per IRC is:

7.0 m 7.5 m 8.0 m 9.0 m

Q43. Which traffic study determines speed trends on roads?

Spot speed study Origin-destination study Parking study Accident study

Q44. The purpose of providing a median on highways is:

Reduce width Separate opposing traffic Improve surface drainage Act as parking area

Q45. The main advantage of traffic rotaries is:

Reduce parking area Avoid conflicts by channelizing movements Increase vehicle speed Provide pedestrian crossings

Q46. The most suitable shape of transition curve in road design is:

Clothoid Parabolic Circular Spiral

Q47. Axle load survey is primarily conducted to:

Control traffic speed Check surface drainage Assess pavement loading and damage factor Measure vehicle count

Q48. Maximum axle load for a tandem axle as per IRC guidelines is:

148 kN 180 kN 224 kN 300 kN

Q49. Road user cost includes:

Vehicle operating cost Time cost Accident cost All of these

Q50. Pavement performance is assessed based on:

Surface roughness Rutting Cracking All of these

Q51. Traffic volume studies are usually conducted over a period of:

1 hour 4 hours 24 hours 12 hours

Q52. The term PCU in traffic studies stands for:

Passenger Car Utility Public Car Unit Passenger Car Unit Passenger Car Uplink

Q53. Stopping sight distance (SSD) depends on:

Reaction time Speed of vehicle Friction between road and tyre All of these

Q54. The unit of road roughness index (RRI) is:

m/km km/hr kg/cm² N/m

Q55. Which of these is a bituminous surface dressing?

Concrete slab Penetration macadam Brick paving Dry lean concrete

Q56. The term 'ruling gradient' is used in:

Cross-sectional design Geometric design Pavement material design Traffic engineering

Q57. Which layer in flexible pavement distributes load to subgrade?

Wearing course Base course Sub-base course All of these

Q58. Which method is widely used for flexible pavement design in India?

Westergaard method CBR method Shell method McLeod method

Q59. Skid resistance of road surface is affected by:

Surface texture Type of aggregate Weather conditions All of these

Q60. IRC recommends what camber for cement concrete roads in heavy rainfall areas?

1 in 60 1 in 50 1 in 36 1 in 72

Q61. The value of camber provided on bituminous roads in heavy rainfall areas as per IRC is:

1 in 33 1 in 36 1 in 40 1 in 50

Q62. The desirable carriageway width for a two-lane undivided road without kerbs is:

7.0 m 7.5 m 8.0 m 9.0 m

Q63. The ruling gradient recommended for plain terrain as per IRC is:

1 in 12 1 in 15 1 in 20 1 in 25

Q64. Super-elevation on horizontal curves is provided to:

Increase aesthetic appeal Drain water from road surface Counteract centrifugal force Allow overtaking

Q65. The ideal shape of valley curves is:

Spiral Parabolic Circular Elliptical

Q66. For parking studies, the most suitable survey method is:

Patrolling survey Questionnaire survey Fixed period photographic method Cordoned count survey

Q67. The highest PCU value is assigned to:

Passenger car Truck Bicycle Bus

Q68. The term “design period” in pavement design implies:

Lifespan of the pavement Expected maintenance interval Time taken to construct pavement Financial recovery period

Q69. Warping stresses are considered in:

Flexible pavements Rigid pavements Gravel roads WBM roads

Q70. The major factor for design of shoulders is:

Traffic load Vehicle speed Emergency stopping Drainage

Q71. The object of providing camber on roads is to:

Provide extra strength Reduce gradient Drain off rainwater Ease vehicle overtaking

Q72. In rigid pavement design, temperature stresses are caused due to:

Traffic loads Moisture variation Daily temperature variations Subgrade settlement

Q73. The maximum super-elevation permitted for hilly roads in snowbound areas is:

7% 10% 5% 8%

Q74. Which of the following is a traffic regulatory sign?

Speed limit sign Directional sign Advance warning sign Roadside facility sign

Q75. The total reaction time of a driver recommended by IRC is:

1.0 seconds 2.5 seconds 3.0 seconds 4.0 seconds

Q76. The main cause of rutting in flexible pavements is:

Improper drainage Excessive axle load Poor maintenance Surface irregularities

Q77. Which of the following traffic studies is conducted for measuring vehicle speeds at a specific location?

Origin-Destination Study Spot Speed Study Parking Study Accident Study

Q78. The term “pavement deflection” refers to:

Settlement of subgrade Lateral shifting of road shoulder Vertical deformation of pavement under load Formation of cracks

Q79. Benkelman Beam is used for:

Measuring camber Measuring pavement deflection Measuring pavement roughness Measuring traffic density

Q80. The design life of rigid pavements as per IRC:58-2015 is:

10 years 15 years 20 years 30 years

Q81. The width of a single-lane carriageway recommended by IRC is:

3.0 m 3.5 m 3.75 m 4.25 m

Q82. The traffic flow condition where vehicles can move freely without hindrance is called:

Congested flow Free flow Forced flow Saturated flow

Q83. The standard axle load used for pavement design as per IRC is:

80 kN 100 kN 120 kN 65 kN

Q84. In traffic engineering, the term ‘PCU’ is expressed as a ratio of:

Speed ratio Space occupancy ratio Both speed and space occupancy ratio Load factor ratio

Q85. The main reason for providing shoulders on highways is to:

Strengthen pavement Facilitate drainage Provide parking space Provide space for emergency stopping

Q86. The minimum value of super-elevation provided on highways is:

1% 2% 4% 6%

Q87. The main cause of bleeding in bituminous roads is:

Excessive bitumen content Poor drainage Low temperature Excessive filler content

Q88. IRC recommends a maximum gradient of ____ for plain terrain.

1 in 12 1 in 15 1 in 20 1 in 25

Q89. Which of the following is a flexible pavement distress?

Warping cracks Alligator cracking Shrinkage cracks Corner break

Q90. The capacity of a rotary is expressed as:

PCU per minute Vehicles per km PCU per hour Vehicles per hour

Q91. In traffic engineering, the term 'capacity' refers to:

Number of lanes in a road Maximum number of vehicles a road can accommodate safely per hour Width of the road shoulder Average speed of traffic flow

Q92. The maximum permissible camber for a bituminous road surface in heavy rainfall areas is:

1 in 40 1 in 33 1 in 20 1 in 50

Q93. The stopping sight distance (SSD) increases with:

Decrease in speed Increase in speed Increase in gradient Increase in friction

Q94. The most appropriate curve for highways in hilly areas is:

Simple curve Transition curve Reverse curve Compound curve

Q95. The design speed for National Highways in plain terrain as per IRC is:

50 kmph 80 kmph 100 kmph 120 kmph

Q96. The primary purpose of a 'transition curve' is to:

Reduce the gradient Facilitate gradual super-elevation Increase the width of road Reduce traffic congestion

Q97. The rolling resistance on a highway is minimum for:

Asphalt surface Concrete surface Gravel surface Mud road

Q98. Bituminous roads are more preferred in India because:

They are maintenance-free Cheaper initial cost Rigid performance Less expansion joints required

Q99. Which one of the following is a surface distress observed in flexible pavements?

Spalling Rutting Warping Scaling

Q100. The test conducted to determine the toughness of aggregates is:

Los Angeles abrasion test Impact test Crushing test Soundness test