Category: Highway Engineering Objective Questions

250+ TOP MCQs on Traffic Flow and Roadway Capacity and Answers

Highway Engineering Multiple Choice Questions on “Traffic Flow and Roadway Capacity”.

1. The weaving manoeuvres is a type of __________
a) Merging
b) Diverging
c) Intersection
d) Crossing
Answer: d
Clarification: The weaving manoeuvre is a type of crossing manoeuvre as it involves crossing of traffic.

2. Which of the following does not affect traffic flow?
a) Vehicles travelling at speed
b) Length of the vehicle
c) Weather conditions
d) Geometric design
Answer: b
Clarification: Traffic flow does not depend on the length of the vehicle, as it is not related to the flow.

3. The speed at which the value of time headway is lowest represents the __________
a) Optimum speed
b) Maximum speed
c) Maximum headway
d) Minimum headway
Answer: a
Clarification: The speed at which the value of time headway is lowest represents the optimum speed.

4. In countries like USA and UAE, which of the regulation is followed?
a) Keep to left
b) Keep to right
c) Keep to middle
d) Follow intersection
Answer: b
Clarification: In countries like US and UAE, keep to right regulation is followed as they follow the left hand drive.

5. When the gap of the vehicle changes to a smaller lane then it is called __________
a) Lane change
b) Forced lane change
c) Simultaneous lane change
d) Voluntary lane change
Answer: b
Clarification: The gap of the vehicle changes to a smaller lane then it is called as forced lane change, as it forces a driver to shift to the smaller lane.

6. The vehicles per unit length at any instant of time is called as __________
a) Density
b) Jam density
c) Maximum density
d) Traffic flow
Answer: a
Clarification: At any instant of time, the vehicles per unit length are called as density, if traffic speed is zero then it is called jam density.

7. The distance between the two consecutive vehicles is called __________
a) Space headway
b) Time headway
c) Jam density
d) Traffic flow
Answer: a
Clarification: The distance between the two consecutive vehicles is called as space headway, and it is measured from head to head of the vehicle.

8. The maximum jam density occurs at __________
a) Zero speed
b) 15th percentile speed
c) 30th percentile speed
d) 98th percentile speed
Answer: a
Clarification: The maximum jam density occurs at zero speed, which indicates that there is no movement of vehicles and the density is maximum.

9. If the space headway is 7m, then the jam density in vehicle/km is __________
a) 142
b) 144
c) 145
d) 146
Answer: a
Clarification: Ki=1000/7
Ki=142 vehicles/km.

10. The minimum space headway increases with __________
a) Increase in length of vehicle
b) Increase in width of vehicle
c) Increase in weight of vehicle
d) Increase in width of pavement
Answer: a
Clarification: The minimum space headway increases with the length of the vehicle, if the length is more then the headway will be more.

11. Which of the following equation is correct?
a) Q=KV
b) K=qv
c) K=qv2
d) V=kq
Answer: a
Clarification: K is the density of vehicles/km and V is the velocity in kmph Q is the number of vehicles.

12. The maximum jam density occurs at __________
a) Ki
b) Ki/2
c) Ki/3
d) Ki/4
Answer: b
Clarification: The maximum jam density occurs at Ki=Ki/2 and Vs = Vsf/2.

13. If the jam density is 145vehicles/km, and velocity is 60kph then the capacity flow is __________
a) 2175
b) 2200
c) 2375
d) 2500
Answer: a
Clarification: Capacity flow=145*60/4
=2175 vehicles per lane.

14. The equivalency factor for the car recommended by IRC is?
a) 0.5
b) 1.0
c) 1.5
d) 2.0
Answer: b
Clarification: The equivalency factor for a car is 1.0, and it increases with the difficulty for the driving of vehicle for hand cart it is 2.0.

15. The maximum theoretical capacity is __________
a) 1000V/S
b) 1000S/V
c) 1000S
d) 1000V
Answer: a
Clarification: The maximum theoretical capacity is 1000V/S, where V is the velocity in kmph and S is the SSD.

250+ TOP MCQs on Design of Highway Pavements and Answers

Highway Engineering Multiple Choice Questions on “Design of Highway Pavements”.

1. The surface of the highway pavement should be designed to allow __________
a) High rolling resistance
b) Low rolling resistance
c) No rolling resistance
d) Very high rolling resistance
Answer: b
Clarification: The surface of highway pavement should be designed to allow no rolling resistance for safety purposes.

2. The soil becomes weak in __________
a) Summer
b) Winter
c) Rainy season
d) Spring season
Answer: c
Clarification: The soil becomes weak in rainy season due to the absorption of water in the soil.

3. The pavement layer is considered superior if it distributes load like a __________
a) Point load
b) Uniformly distributed load
c) Uniformly varying load
d) Triangular load
Answer: a
Clarification: The pavement layer is considered most superior if it distributes the load equally to all parts of pavement.

4. Which of the following pavement has greater life?
a) Bituminous pavements
b) Cement concrete pavements
c) Gravel roads
d) Earth roads
Answer: b
Clarification: The cement concrete roads have a greater life than remaining all pavements which may last even up to 100 years.

5. Which of the following requirement is given most importance in highway design?
a) Structural
b) Functional
c) Seasonal
d) Maintenance
Answer: a
Clarification: The structural design like highway speed, geometric design is given the most importance in design.

6. The surface of the pavement should be __________
a) Smooth
b) Rough
c) Sufficient enough to resist skid
d) Very rough
Answer: c
Clarification: The surface of the pavement should be sufficient enough to resist the skid of vehicles by using friction.

7. Rough and uneven roads increase __________
a) Vehicle cost
b) Petrol cost
c) Accident cost
d) Vehicle operation cost
Answer: d
Clarification: Roughness and uneven roads will increase the cost of vehicle operation and maintenance of vehicle cost.

8. The drainage layer is __________
a) Surface course
b) Sub base
c) Base
d) Sub grade
Answer: b
Clarification: The drainage layer is the sub base layer that is used to collect the water from pavement surfaces to send to ground water.

9. The maximum stress sustained by concrete pavements in kg/cm2 is __________
a) 40
b) 45
c) 50
d) 55
Answer: b
Clarification: The concrete pavements are designed to sustain a stress of 45Kg/cm2 which is the maximum limit.

10. The ICPB type of pavement uses __________
a) Concrete paver blocks
b) Fly ash
c) GGBS
d) RMC
Answer: a
Clarification: The ICPB uses mostly interlocking concrete paver blocks for the construction of pavements.

11. The ICPB may be used in __________
a) Water logged areas
b) Parks
c) Footpaths
d) Highways
Answer: a
Clarification: The inter locking concrete paver blocks may be used in water logged areas to absorb the water and send it to the ground water.

12. The design life of flexible pavement is __________
a) 12
b) 10
c) 8
d) 15
Answer: d
Clarification: The design life of flexible pavement is considered as 15 years, it may last even further if properly maintained.

13. The design period of cement concrete road is taken as __________
a) 20
b) 25
c) 30
d) 35
Answer: c
Clarification: The design period of cement roads is usually taken as 30 years but they can even last longer if properly maintained and designed.

14. In India the flexible pavement is designed as per __________
a) MSA
b) KSA
c) CSA
d) FSA
Answer: a
Clarification: The flexible pavements are designed as per IRC 37 which uses MSA to specify the unit of the vehicles.

15. The maximum length of vehicle that can be used on Indian roads is __________
a) 11
b) 12
c) 13
d) 14
Answer: b
Clarification: The maximum length of a vehicle in India is restricted as per the rotary design of the highway which is maximum 12m.

250+ TOP MCQs on Soil Stabilized Roads and Answers

Highway Engineering Multiple Choice Questions on “Soil Stabilized Roads”.

1. How many objectives of soil stabilised roads?
a) One
b) Two
c) Three
d) Four
Answer: b
Clarification: There are two objectives of soil stabilised roads, they are to achieve roads with low cost and upgrading of existing roads.

2. What is the biggest drawback in India for laying roads?
a) Limited roads
b) Limited resources
c) Limited finance
d) Limited labour
Answer: c
Clarification: The biggest problem in developing countries like India is limited finance, so it takes a lot of time.

3. The stabilisation of roads is not done in __________
a) Sub grade
b) Base
c) Sub base
d) Surface Layer
Answer: d
Clarification: The stabilisation of roads is not done in the surface layer of the pavement, because it is made of bitumen or concrete, so stabilization cannot be done.

4. The subgrade thickness is compacted to __________
a) 200 mm
b) 300 mm
c) 400 mm
d) 500 mm
Answer: d
Clarification: For national highway and important roads the thickness is compacted to 500 mm and for village road it may be lesser.

5. The soil stability is not so good in __________
a) Black cotton soil
b) Gravel
c) Sand
d) Boulders
Answer: a
Clarification: The black cotton soil is useful for agriculture, but not so good for pavement as it swell on absorption of the water and retain them as they are suitable for agriculture, plants grow very well in black cotton soil.

6. The more thickness of the excavation will lead to __________
a) More stability
b) Less stability
c) Increase of cost
d) Decrease of cost
Answer: c
Clarification: The more thickness of the excavation will lead to more labour charge, which lead to more cost.

7. The PMGSY aims to connect __________
a) Highway
b) Cities
c) Towns
d) Villages
Answer: d
Clarification: The PMGSY was launched to connect the villages all across the country from north to south and east to west by linking them with a nearby city.

8. The construction of soil stabilised roads is possible in __________
a) High volume roads
b) Highway
c) Village road
d) Low volume roads
Answer: d
Clarification: The soil stabilised roads can be used in places where the volume of traffic is very low.

9. The black cotton soil is replaced in which roads?
a) Highway
b) Low volume road
c) Street road
d) Village road
Answer: a
Clarification: The priority is maximum given to the highway for laying roads, and if soil is not suitable then it is replaced.

10. What is the most commonly used material for stabilisation of soils?
a) Cement
b) Lime
c) Heating
d) Chemicals
Answer: a
Clarification: If there is no chance for soil replacement or its very costly then cement stabilised soil is used.

250+ TOP MCQs on Objects of Highway Drainage System and Answers

Highway Engineering Multiple Choice Questions on “Objects of Highway Drainage system”.

1. The process of removing and controlling excess surface and sub soil water within roadway is ___________
a) Highway Engineering
b) Highway maintenance
c) Highway drainage
d) Highway finance
Answer: c
Clarification: The removal of excess surface and sub surface soil within the roadway or right of way is considered highway drainage.

2. The number of important factors for highway engineer are ___________
a) One
b) Two
c) Three
d) Four
Answer: c
Clarification: The important factors that are considered for the highway engineer are design, construction and maintenance.

3. The highway drainage system consists of how many types?
a) One
b) Two
c) Three
d) Four
Answer: b
Clarification: The drainage system is classified as surface drainage system and sub surface drainage system.

4. The surface water is obtained from ___________
a) Ground water
b) Rainfall
c) Leakage of water from water treatment plants
d) None of the mentioned
Answer: b
Clarification: Both surface and sub surface water are obtained from the rainfall, in case of leakage the water is percolated into the ground, the run off is obtained from the remaining water flowing on the ground.

5. The removal and diversion of surface water from the roadway is called ___________
a) Surface drainage
b) Sub surface drainage
c) Camber
d) Cross slope
Answer: a
Clarification: The removal of land from surface and adjoining land is called as surface drainage.

6. The surface drainage doesn’t consist of ___________
a) Camber
b) Road side drains
c) Culverts
d) Curves
Answer: d
Clarification: As far as possible the surface drainage should be kept as straight as possible, usually curves are not the part of surface drainage if unavoidable then bends may be provided.

7. The seepage flow is present in ___________
a) Surface drainage
b) Sub surface drainage
c) Camber
d) Cross slope
Answer: b
Clarification: The seepage flow is present in the sub surface drainage which is excavated from the soil.

8. The water that cannot be drained of by gravity is called ___________
a) Pore water
b) Held water
c) Gravitational water
d) Capillary water
Answer: c
Clarification: The gravitational force can’t send off the water which is present in pores, such water is called as held water.

9. The structure provided on the pavement to remove the storm water is ___________
a) Drainage
b) Camber
c) Crown
d) Curves
Answer: b
Clarification: The camber is a structure provided on the pavement to drain off the storm water, resulting from rain crown is provided above the camber.

10. The highest point provided on the pavement is ___________
a) Crown
b) Camber
c) Cross slope
d) Drainage
Answer: a
Clarification: The highest point provided on the pavement is called crown, which is provided above the camber and it is not used for the same function as camber.

250+ TOP MCQs on Engineering Surveys for Highway Alignment and Answers

Highway Engineering Questions and Answers for Freshers on ” Engineering Surveys for Highway Alignment”.

1. The surveys of highway alignment are completed in how many stages?
a) One
b) Two
c) Three
d) Four
Answer: d
Clarification: The surveys are completed in 4 stages namely map study, reconnaissance, preliminary survey and detailed survey.

2. The maps in India related to topography are prepared by __________
a) Geological survey of India
b) Survey of India
c) NHAI
d) GOI
Answer: b
Clarification: All the maps related to topography in India are prepared by survey of India, NHAI is for highway alignment and geological survey of India for any rocks exploration, government of India is the finance aid for all.

3. The survey in which details are covered roughly but not accurately is called __________
a) Reconnaissance
b) Rough survey
c) Map study
d) Detailed study
Answer: a
Clarification: The reconnaissance survey consists of studying the details in the field roughly which are not covered in the map study.

4. The soil survey is conducted in which of the following survey?
a) Preliminary survey
b) Reconnaissance survey
c) Map study
d) Topography study
Answer: a
Clarification: The preliminary survey consists of collecting topographical data, soil survey and other data, in reconnaissance survey rough survey is done, map study is for a plan.

5. A closed loop used for survey purpose is called __________
a) Open traverse
b) Closed traverse
c) Primary traverse
d) Secondary traverse
Answer: b
Clarification: A traverse is a closed loop used for survey purpose, if it is open then it is called as open traverse.

6. Expand GPS?
a) Global position satellite
b) Global perception satellite
c) Global position system
d) Geographical position system
Answer: c
Clarification: GPS –Global position system is a modern technique used for survey. GIS is also used for weather report and other applications.

7. The intervals for levelling work in rolling terrain are taken as __________
a) 50m
b) 30 m
c) 45 m
d) 40 m
Answer: a
Clarification: In the rolling terrain the interval is considered as 50m and in hilly terrain is taken as 30m.

8. What is the first step in a preliminary survey?
a) Primary traverse
b) Map study
c) Detailed survey
d) Detailed project report
Answer: a
Clarification: The first step in preliminary survey is to establish primary traverse followed by a survey and detailed project report.

9. The surface thickness of the pavement is decided based on __________
a) HFL
b) MFL
c) MSL
d) HFL and MSL
Answer: a
Clarification: The HFL is the height till which water raised during recent floods, to avoid the flooding of roads they are always kept above HFL.

10. The key map size should not exceed __________
a) 20*22 cm
b) 32*20 cm
c) 32*32 cm
d) 20*32 cm
Answer: a
Clarification: The key map shows the proposed site and important places, the key map should not exceed 22*20cm in size.

Highway Engineering for Freshers,

250+ TOP MCQs on Traffic Regulation and Control – 1 and Answers

Highway Engineering Multiple Choice Questions on “Traffic Regulation and Control – 1”.

1. What is the first phase of traffic regulation?
a) Driver controls
b) Vehicle controls
c) Traffic flow regulations
d) General controls
Answer: a
Clarification: The first phase of traffic regulation is driver controls followed by vehicle control, traffic flow regulation and general control.

2. The various regulations imposed through the traffic control devices do not include __________
a) Clear visibility
b) Easy recognition
c) Sufficient time for driver
d) Traffic population
Answer: d
Clarification: The various regulations imposed through the traffic control devices do not include as they are not related to control of traffic.

3. The minimum age for attaining a license for a geared vehicle is?
a) 16 years
b) 18 years
c) 20 years
d) 21 years
Answer: b
Clarification: Then minimum age for driving a non-geared vehicle is 16 years, for geared vehicle it is 18 years and for transport vehicle it is 21 years.

4. The motor vehicle act was revised in __________
a) 1939
b) 1988
c) 1989
d) 1987
Answer: b
Clarification: The motor vehicle act was passed in 1939, and it was revised in 1988.

5. Traffic symbols are classified into how many categories?
a) One
b) Two
c) Three
d) Four
Answer: c
Clarification: The traffic symbols are classified into three types they are informatory, cautionary and mandatory.

6. The symbol when violated which may lead to offense is?
a) Cautionary
b) Mandatory
c) Informatary
d) Both informatory and cautionary
Answer: b
Clarification: Mandatory symbol is a symbol which has to be followed at all times, if violated except for special cases, they may attract a penalty.

7. Which of the following is a disadvantage in one way traffic?
a) Increase in average travel speed
b) More effective coordination of signal system
c) More stream lined movement of vehicles
d) More chances of overtaking
Answer: d
Clarification: In one way traffic there are more chances of overtaking as there is traffic only in one direction, there is a chance of overtaking.

8. The total conflict points at a junction on both two way roads are?
a) One
b) Four
c) five
d) six
Answer: d
Clarification: The total number of conflict points is the sum of major and minor conflict points, major conflict points are 4 and minor conflict points are 2, so total conflict points are six.

9. The maximum number of conflict points is formed in __________
a) One way regulation on one road
b) One way regulation on two roads
c) Two way regulation on one road
d) Two way regulation on both roads
Answer: d
Clarification: The maximum number of conflict points is formed in two ways regulation on both roads is 24.

10. The specifications for road signs are specified by __________
a) IRC 6
b) IRC 21
c) IRC 67
d) IRC 97
Answer: c
Clarification: The specifications for road signs are specified by IRC 67-2010.

11. The diameter of the small size information board is?
a) 600mm
b) 900mm
c) 1200mm
d) 1500mm
Answer: a
Clarification: The diameter of the small size information board is 600mm, for medium size is 900mm and the large size diameter is 1200mm.

12. Which type of board should be installed if the speed limit is 100kmph?
a) Small
b) Medium
c) Large
d) Not required
Answer: c
Clarification: Large sizes of boards are required when speed limit exceeds 100kmph, for lesser speeds small and medium sized boards can be used.

13. Give way sign is of __________
a) Triangular shape
b) Circular shape
c) Octagonal shape
d) Hexagonal shape
Answer: a
Clarification: Give way sign is of triangular shape and it is coloured with a red border and white background.

14. STOP sign is having __________
a) Octagonal shape
b) Circular shape
c) Triangular shape
d) Any shape
Answer: a
Clarification: STOP symbol is of octagonal shape and covered in red background and red border.

15. The clearance time is indicated by __________
a) Red
b) Amber
c) Green
d) White
Answer: b
Clarification: The clearance time is indicated by amber, in some places yellow and blue color also used.