Category: Highway Engineering Objective Questions

250+ TOP MCQs on Traffic Engineering Studies and Analysis – 2 and Answers

Highway Engineering Interview Questions and Answers for Experienced people on “Traffic Engineering Studies and Analysis – 2”.

1. The annual average daily traffic is calculated by which of the formula?
a) ADT*DF*WF
b) ADT*DF*WF*SF
c) ADT*WF
d) ADT*SF
Answer: b
Clarification: The AADT is given by AAADT=ADT*DF*WF*SF, it depends on traffic, day, season and week.

2. Running speed of a vehicle is equal to __________
a) Travel speed+ delay
b) Travel speed
c) Travel speed-delay
d) Average of travel speed and delay
Answer: c
Clarification: The running speed of a vehicle is obtained by dividing the distance with a time of travel and subtracting the delays.

3. The speed at any instant of time is called __________
a) Running speed
b) Travel speed
c) Spot speed
d) Space speed
Answer: c
Clarification: The speed at any instant of time is called as spot speed or instantaneous speed, running speed is during travel and the average speed of travel is travel speed.

4. Which of the following relationship is correct?
a) Travel speed= running speed
b) Travel speedrunning speed
d) Travel speed=1.5 times of running speed
Answer: b
Clarification: Running speed is always greater than travel speed as the travel speed always includes the stopped delays.

5. Peak hour factor is expressed in percentage of __________
a) ADT
b) AADT
c) PCU
d) DF
Answer: b
Clarification: Peak hour factor is expressed in the percentage of AADT; it is used in the design of transportation facilities and major projects.

6. How many types of traffic speed studies are conducted?
a) One
b) Two
c) Three
d) Four
Answer: b
Clarification: There are two types of studies conducted for speed, they are (i) spot studies (ii) speed and delay studies.

7. If the distance of a vehicle moved is 25m and the observed travel time is 15 sec then space mean speed is?
a) 4m/s
b) 5m/s
c) 6m/s
d) 7m/s
Answer: c
Clarification: Space mean speed=3.6*25/15
=6m/sec.

8. If space mean speed of a vehicle is 50kmph, then the time mean speed will be __________
a) Less than 50kmph
b) Greater than 50kmph
c) Equal to 50kmph
d) Depends on the vehicle
Answer: b
Clarification: The Time mean speed will always be greater than space mean speed and it will be greater than 50kmph.

9. If the instantaneous speed of 4 vehicles are 35, 40, 45 and 50 then the time mean speed will be __________
a) 40kmph
b) 41 kmph
c) 41.5kmph
d) 42.5kmph
Answer: d
Clarification: The space mean speed is given by
Vt=V1+V2+V3+V4/(4)
=35+40+45+50/ (4)
=42.5kmph.

10. The geometric design in India are designed for __________
a) 85th percentile speed
b) 15th percentile speed
c) 98th percentile speed
d) 100 percentile speed
Answer: c
Clarification: In India mostly the road geometrics are designed for 98th percentile speed, the upper limit for speed is 85th percentile and lower limit is 15th percentile.

250+ TOP MCQs on Portland Cement and Cement Concrete and Answers

Highway Engineering Multiple Choice Questions on “Portland Cement and Cement Concrete”.

1. What is the minimum grade of concrete in CC pavement?
a) M20
b) M30
c) M40
d) M50
Answer: c
Clarification: The minimum grade of concrete required for pavement is M40, as it should withstand temperature and wheel stresses.

2. The cement used in water logged areas is __________
a) Portland cement
b) Hydrophobic cement
c) Quick setting cement
d) Reediest cement
Answer: b
Clarification: The cement mostly used in water logged areas is hydrophobic cement as it will resist the water from clogging.

3. The waste material mostly used in pavement is __________
a) Fly ash
b) GGBS
c) Rice husk
d) Soil
Answer: a
Clarification: The waste material mostly used in pavement is fly ash which is mostly obtained from thermal power plants.

4. The cement on touching should give __________
a) Cool feeling
b) Hot feeling
c) neutral
d) Very cool feeling
Answer: a
Clarification: The cement on touching with hand should give a cool feeling and not break; it should be free from lumps.

5. Cement specific gravity is measured by __________
a) Water
b) Kerosene
c) Oil
d) Petrol
Answer: b
Clarification: The specific gravity of cement is measured by kerosene, because if it is measured with water then it forms heat of hydration.

6. The specific gravity of cement is __________
a) 2.5
b) 1.44
c) 3.15
d) 30
Answer: d
Clarification: The specific gravity of cement is 3.15, it is not like the density which is 1440 kg/m3 because here kerosene is used for density test and in 1 metre cube of volume 30 bags may be filled.

7. One meter cube of cement consists of how many bags of cement?
a) 30
b) 50
c) 15
d) 10
Answer: a
Clarification: One meter cube of volume contains 30 bags of cement or 1500kg of cement, it is actually an assumption that one kg of bag consists of 50 kg cement, but density is 1440kg/m3, so approximately value is 30, but the actual value is more.

8. The density of cement in Kg/m3 is __________
a) 1440
b) 1240
c) 1340
d) 1540
Answer: a
Clarification: The density of cement in Kg/m3 is 1440; it is not 3150 because its specific gravity is measured with kerosene.

9. The initial setting time of cement is not less than __________
a) 30 seconds
b) 300 seconds
c) 30 minutes
d) 300 minutes
Answer: c
Clarification: The initial setting time of cement is not less than 30 minutes for ordinary Portland cement and it may vary for various grades of cement.

10. What is the first test to be done for determining any property of cement?
a) Consistency
b) Setting time
c) Soundness
d) Fineness
Answer: a
Clarification: The first test to be done for determining any property of cement is a consistency test which lies between 27 and 29.

11. The volume of water in setting time test is?
a) 0.78p
b) 0.75p
c) 0.85p
d) 0.95p
Answer: c
Clarification: The volume of water in the setting time test is 0.85p where p is the consistency of the cement sample.

12. The volume of water in soundness test is?
a) 0.6p
b) 0.7p
c) 0.78p
d) 0.8p
Answer: c
Clarification: The volume of water in soundness test is 0.78p, where p is the consistency of the cement sample.

13. The property of cement by which it doesn’t expand is called __________
a) Fineness
b) Soundness
c) Setting time
d) Consistency
Answer: b
Clarification: The property of cement by which it doesn’t expand on contact with water is called as soundness.

14. What is the most commonly used grade of cement?
a) 33
b) 43
c) 53
d) 63
Answer: c
Clarification: The most commonly used grade of cement is OPC 53 grade cement for most of the purposes, fly ash is also mixed in some cement.

15. What is the total grades of cement specified by IRC?
a) 3
b) 6
c) 9
d) 12
Answer: c
Clarification: IS has classified the grades of cement depending upon the requirement into 9 categories of various classes and materials.

250+ TOP MCQs on Low Volume Roads and Answers

Highway Engineering Multiple Choice Questions on “Low Volume Roads”.

1. The design life for low volume roads is __________
a) 10 years
b) 15 years
c) 20 years
d) 30 years
Answer: a
Clarification: The low volume roads consist of low volume traffic and its life span is taken as 10 years.

2. The million standard axles in low volume roads is considered as __________
a) 1 million
b) 1.5 million
c) Less than 1 million
d) 2 million
Answer: c
Clarification: The volume on low volume roads is taken less than 1 million for design purpose, it may actually be more but for ease it is taken as 1 million.

3. The low volume roads are designed as __________
a) All weather roads
b) Fair weather roads
c) Flexible pavement
d) Rigid pavement
Answer: b
Clarification: Though the low volume road may have a lesser life span and capacity it should be accessible in all weathers.

4. The type of road used for ESAL value less than 10000 is?
a) Earth road
b) Gravel road
c) Flexible pavement
d) Rigid pavement
Answer: a
Clarification: The earth road is the most suitable for less volume of road, it is a value that is obtained based on the traffic load.

5. What is the maximum limit of sub grade thickness?
a) 150 mm
b) 200 mm
c) 300 mm
d) 400 mm
Answer: c
Clarification: The prepared sub grade is limited to a maximum of 300 mm, in any case it must not exceed 300 mm.

6. The base course is generally laid in earth road for a thickness of __________
a) 40 mm
b) 60 mm
c) 80 mm
d) 100 mm
Answer: d
Clarification: The base course is laid for a thickness of 100 mm, it may exceed in some cases, in some cases it may be 80 mm and even 40 mm in unimportant roads.

7. The camber depends on __________
a) Road
b) Heat
c) Wind
d) Rainfall
Answer: d
Clarification: The camber is provided to eliminate the rain that may be stored near the surfaces.

8. The plasticity index in soil used for low volume roads should be less than __________
a) 10
b) 9
c) 7
d) 6
Answer: d
Clarification: The plastic limit for the soil should not exceed 6 in any case for the soil that is used in the pavement.

9. The gravel content in the surface layer can be a maximum of __________
a) 60%
b) 70%
c) 80%
d) 90%
Answer: c
Clarification: The maximum gravel content in surface layer should be maximum of 80% and the minimum depends on the type of the pavement.

10. The minimum slope provided in a surface of cement concrete pavement is?
a) 1%
b) 1.5%
c) 2%
d) 2.5%
Answer: d
Clarification: The minimum slope provided is 2%, the maximum may be 2.5%. for a surface of the cement concrete pavement.

250+ TOP MCQs on Distresses in Rigid Pavements and Maintenance Measures – 2 and Answers

Highway Engineering Questions and Answers for Aptitude test on “Distresses in Rigid Pavements and Maintenance Measures – 2”.

1. The probable causes for loss of surface texture don’t include ___________
a) Poor texturing
b) Abrasion
c) Movement of Traffic
d) Use of durable materials
Answer: d
Clarification: The loss of surface is not caused due to the durable materials, it is caused due to non durable materials.

2. The surface texture may be calculated by ___________
a) Abrasion test
b) Impact test
c) British pendulum number
d) Viscosity test
Answer: c
Clarification: British pendulum number is a test which is conducted for the testing of the pavement frictional resistance.

3. The depth of groove in skid resistance test is ___________
a) 0.5 mm
b) 1.0 mm
c) 1.5 mm
d) 2.0 mm
Answer: c
Clarification: The depth of the groove in the skid resistance test is 1.5 mm, in which it can handle the apparatus.

4. The structural distress in the CC pavement is not due to ___________
a) Excessive loading
b) Inadequate thickness
c) Long spacing
d) Erosion
Answer: d
Clarification: The erosion is not structural distress, it is a type of functional distress, structural distress are related to design.

5. The method not used in structural evaluation of CC pavement is?
a) Visual inspection
b) Deflection test
c) Non destructive testing
d) Benkleman test
Answer: d
Clarification: Benkleman test is a method used to verify the deflection of flexible pavement and not used in rigid pavement.

6. The methods of crack repairs are classified into how many types?
a) One
b) Two
c) Three
d) Four
Answer: c
Clarification: The methods of crack repairs are crack stitching, partial depth and full depth repairs.

7. The diameter of bars used for insertion in crack stitching method is ___________
a) 8 mm
b) 10 mm
c) 12 mm
d) 16 mm
Answer: d
Clarification: The diameter of the bars used are 16 mm HYSD bars which are bent into U shape and inserted in holes at 600 mm intervals.

8. The partial depth repairs are limited to a slab height of less than ___________
a) 150 mm
b) 100 mm
c) 90 mm
d) 75 mm
Answer: d
Clarification: The partial depth repairs are limited to a height of less than 75 mm, or 1/3rd of the height of slab.

9. In full depth repairs the diameter of the hole is greater than the diameter of dowel bar by ___________
a) 1 mm
b) 1.5 mm
c) 2.0 mm
d) 2.5 mm
Answer: c
Clarification: The diameter of the hole dug is 2 mm more than the diameter of the dowel bar, which is useful for inserting tie bars.

10. The pavement condition factor for good condition is?
a) 0.25
b) 0.35
c) 0.45
d) 1.0
Answer: d
Clarification: The factor for the good, sound and slightly cracked pavement is 1.0, if it gives more cracks it decreases from 0.45 to 0.25.

Highway Engineering for Aptitude test,

250+ TOP MCQs on Highway Finance and Answers

Highway Engineering Multiple Choice Questions on “Highway Finance”.

1. The average annual highway cost for a road system may be summed up by __________
a) Ca=H+T+M+Cr
b) Ca=H+T+M-Cr
c) Ca=H+T
d) Ca=H
Answer: a
Clarification: The average cost of the annual road system is the sum of all costs like average cost of highway administration, operation and maintenance and also the recovery fund.

2. The CRF denotes __________
a) Central Road Fund
b) Capital Recovery Fund
c) Capital Recovery Factor
d) Central Research Fund
Answer: c
Clarification: The first cost of a capital improvement is converted into equivalent annual cost which is called capital recovery factor.

3. The Vs in average annual capital cost represents?
a) Savage value
b) Salvage value
c) Waste value
d) Usable value
Answer: b
Clarification: Salvage is the income available after the structure has almost completed the life span.

4. If the principal is P and rate of interest is i and it has to be paid in n years then, the sum S is given by __________
a) P(1+i)
b) P(1-i)
c) P/I
d) P(1+i)n
Answer: d
Clarification: The compound interest is calculated for every year and it’s leived on the preceding interest.

5. What is the first step in economic analysis?
a) Determine the AADT
b) Estimate growth rate
c) Assessment of traffic route
d) Estimate additional traffic
Answer: a
Clarification: The average annual daily traffic is required for the completion of the remaining steps.

6. The method not used in economic analysis is __________
a) Annual cost
b) Rate of return
c) Benefit cost ratio
d) Floating car
Answer: d
Clarification: The floating car method is a method that is used for the estimation of the traffic, whereas the remaining are methods of analysis of the cost.

7. The savings in annual road user costs, annual savings in accident costs and capital cost of Improvement are parameters used in __________
a) Annual cost method
b) Rate of return method
c) Benefit cost ratio
d) None
Answer: b
Clarification: The transport laboratory of London has developed this method in which a rate of return is obtained by these parameters, the remaining methods don’t require these parameters.

8. The ratio of annual benefit from improvement to annual cost of the improvement is called __________
a) Benefit
b) Cost
c) Benefit cost ratio
d) Maintenance cost
Answer: c
Clarification: The ratio of annual benefit from the improvement to annual cost of the improvement is called benefit cost ratio, benefit is the profit, cost is the investment and maintenance cost is after the investment.

9. The national highway act was ammended in __________
a) April 1956
b) June 1995
c) July 1956
d) August 1995
Answer: b
Clarification: The national highway act 1956, was amended in June 1995, it was actually planned in April 1956.

10. As on April 2009, how many projects have been completed on BOT basis?
a) 5
b) 42
c) 25
d) 9
Answer: d
Clarification: As on April 2009, twenty five projects have been sanctioned and nine projects were completed by April 2009 and in other proposals 42 projects were remaining in which 5 are completed.

250+ TOP MCQs on Highway Alignment and Answers

Highway Engineering Multiple Choice Questions on “Highway Alignment”.

1. The changes in gradient and vertical curve are covered under which type of alignment?
a) Horizontal alignment
b) Vertical alignment
c) Geometric design
d) Highway specifications

Answer: b
Clarification: The changes in gradient and vertical curves are covered under the vertical alignment, whereas the remaining three are covered under horizontal alignment.

2. The improper alignment of road will not result in __________
a) Increase in construction cost
b) Increase in maintenance cost
c) Increase of population
d) Increase in accidents

Answer: c
Clarification: The increase of population does not depend on the alignment of the road, whereas improper construction and maintenance lead to accidents.

3. The basic requirement of alignment should be __________
a) Short
b) Easy
c) Safe
d) Short, easy, safe and economical

Answer: d
Clarification: The alignment of the road should be short, safe, easy and economical for users and engineers.

4. The economical option during the construction of a road around a hill is __________
a) Cut the hill
b) Provide a tunnel
c) Provide a road around the hill
d) Look for other alternative approaches

Answer: c
Clarification: The most economical option is to provide a road around the hill. In this alternative approach is not advisable as it has to pass either through the hill or nearby the hill.

5. Obligatory points through which the alignment should not pass are __________
a) Religious structure and costly structures
b) Intermediate towns
c) Important cities
d) Important places of worship

Answer: a
Clarification: The obligatory points through which alignment should not pas include religious structures and costly structures because destroying them would require a lot of compensation.

6. The desire lines are prepared for the study of __________
a) Traffic flow
b) Origin and destination
c) Growth of traffic in the future
d) Anticipated traffic flow

Answer: a
Clarification: The desire lines are lines which study the traffic flow from origin and destination.

7. Which of the following types of roads are most preferred for highways?
a) Cement concrete roads
b) Gravel roads
c) Bituminous roads
d) Unpaved surfaces

Answer: c
Clarification: The most preferred type of road is bituminous roads. They are cheap for initial construction when compared to other types of surfaced roads.

8. The stability of slopes is considered while designing?
a) National highway
b) State highway
c) Hill roads
d) District roads

Answer: c
Clarification: The slope stability is important during the design of hill roads, because it may have a danger of landslides.

9. The coefficient of lateral friction as recommended by IRC is __________
a) 0.15
b) 0.40
c) 0.35
d) 0.30

Answer: a
Clarification: The coefficient of lateral friction recommended by IRC is 0.15 and it lies between 0.3-0.4 for longitudinal friction.

10. The resisting length should be kept __________
a) minimum
b) Maximum
c) Depends on gradient
d) Depends on rise and fall

Answer: a
Clarification: The resisting length should be kept as low as possible for gradient purposes, if it is maximum then there will be a problem with the gradient.