Showing posts with label Highway questions. Show all posts
Showing posts with label Highway questions. Show all posts

Highway Engineering Questions (h5)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.



  1. What is the ruling design speed of National Highway in the rolling plain?


    1. 100 kmph
    2. 80 kmph
    3. 65 kmph
    4. 50 kmph

    View Answer
    Answer: b

  2. The cross-slope of plain terrain is ...


    1. 0 to 10 per cent
    2. 10 to 25 per cent
    3. 25 to 65 per cent
    4. greater than 65 per cent

    View Answer
    Answer: a

  3. The width and height of the centre of gravity of a vehicle negotiating a horizontal curve are $"b"$ and $"h"$ respectively. $"\mu"$ is the coefficient of friction between the road surface and the wheels. If the radius of the curve is low and the speed of the vehicle is high, it would skid before overturn when ...


    1. $b/2h > \mu$
    2. $b/h < \mu$
    3. $b/h > \mu$
    4. $b/2h < \mu$

    View Answer
    Answer: a
    The vehicle would skid not overturn if $b/2h > \mu$ i.e., when $\mu$ is less than $b/2h$ and the vehicle would overturn before skidding if $b/2h < \mu$

  4. To counteract the effect of centrifugal force at a horizontal curve, we provide ...


    1. superelevation
    2. cant
    3. banking
    4. all of the above

    View Answer
    Answer: d

  5. If a road surface is adequately superelevated on a horizontal curve, which one of the following is the proper distribution of pressure on the vehicle wheels?


    1. Pressure on the inner wheel is more than that of the outer wheel
    2. Pressure on the front wheel is more than that of the rear wheel
    3. Pressure on both outer and inner wheels is equal
    4. Pressure on the inner wheel is less than that of the outer wheel

    View Answer
    Answer: c
    If the road surface is kept horizontal across the alignment, the pressure on the outer wheels will be higher due to centrifugal force acting outwards and hence the reaction at the outer wheel would be higher. In order to counteract this centrifugal force and to reduce the tendency of the vehicle to overturn or skid superelevation is provided.

  6. If superelevation is not provided on a horizontal curve of a highway, then portholes are likely to develop on ...


    1. The inner edge of the road
    2. Centre of the road
    3. Shoulder of the road
    4. The outer edge of the road

    View Answer
    Answer: d

  7. The correct expression for superelevation is ...


    1. $e+f=\frac{v^2}{gR}$
    2. $e-f=\frac{v^2}{gR}$
    3. $e+f=\frac{v^2}{2gR}$
    4. $e+f=\frac{v}{gR}$

    View Answer
    Answer: a

  8. The expression for Equilibrium Superelevation is ...


    1. $e+f=\frac{v^2}{gR}$
    2. $e=\frac{v^2}{gR}$
    3. $e=\frac{v^2}{2gR}$
    4. $f=\frac{v}{gR}$

    View Answer
    Answer: b

  9. As per IRC, what is the maximum limit of superelevation in snow bound rolling terrains?


    1. 5 %
    2. 6 %
    3. 7 %
    4. 10 %

    View Answer
    Answer: c

  10. The design speed and camber are 60 KMPH and 3 % respectively. What is the minimum radius of horizontal curve beyond which superelevation is not required?


    1. 1100 m
    2. 950 m
    3. 700 m
    4. 620 m

    View Answer
    Answer: d
    Click here for more information





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Highway Engineering Questions (h4)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.



  1. If the design speed is 60 Km/Hour and coefficient of friction is 0.36 then what will be the stopping sight distance?


    1. 86 m
    2. 81 m
    3. 76 m
    4. 71 m

    View Answer
    Answer: b
    Stopping side distance $=0.278 \times V \times t + \frac{V^2}{254 \times f}$
    $V=$ velocity in KMPH; $t=$ reaction time $=2.5 s$
    $f=$ coefficient of friction

  2. As per IRC, Intermeidate sight distance is ...


    1. 2 times the stopping sight distance
    2. 1/2 times the stopping sight distance
    3. equal to the stopping sight distance
    4. 4 times the stopping sight distance

    View Answer
    Answer: a

  3. While going down the grade, the driver requires a braking distance twice that required for stopping the vehicle when he travels up the same grade. If the speed of the vehicle is 30 KMPH and coefficient of friction is 0.4 then what will be the grade?


    1. 7 %
    2. 33.3 %
    3. 10.6 %
    4. 13.3 %

    View Answer
    Answer: d
    If ${L}_{d}$ is the stopping distance down the grade and ${L}_{u}$ is SD up the grade and G is the grade then,

    ${L}_{d}= 2 \times {L}_{u}$
    $\frac {v^2}{ 2g\times (f - G)}= \frac {2 \times v^2}{2g \times (f + G)}$
    $(f + G)= 2 (f - G)$
    $3G = f$
    $G = 0.4/3 = 0.1333 = 13.3$ %

  4. A vehicle was stopped by fully jamming the brakes. The skid marks measured 9.8 m. The average skid resistance will be ...


    1. 0.6
    2. 0.5
    3. 0.4
    4. 0.3

    View Answer
    Answer: b
    Braking distance,
    $L= \frac{u^2}{2gf}$
    $v=u-at=u-gft$

    since final velocity, v is zero
    $u = gft$
    $L=\frac{(gft)^2}{2gf}$
    $f= \frac{2L}{g t \times 2}=0.5$

  5. Which of the following factors affect the required value of camber?


    1. The type of pavement surface
    2. The amount of rainfall
    3. Weight of vehicles
    4. Direction od superelevation

    Select the correct answer.
    1. (1) and (2) only
    2. (2) and (4) only
    3. (1) and (3) only
    4. (2) and (4) only

    View Answer
    Answer: a

  6. The design speed of a highway is 60 KMPH. Assuming other data as per IRC recommendations, which one of the following is the approximate adopted lag distance?


    1. 55 m
    2. 42 m
    3. 46 m
    4. 49 m

    View Answer
    Answer: b
    Lag distance $=0.278 V \times t = 41.7 m$


  7. Consider the following statements:

    Excessive camber is not provided on the roads because
    1. transverse tilt cause uncomfort
    2. of formation of cross ruts
    3. of likely toppling over highly laden bullock carts
    4. of higher costs involved

    Which of these statements are correct?
    1. 2, 3 and 4
    2. 1, 3 and 4
    3. 1, 2 and 4
    4. 1, 2 and 3

    View Answer
    Answer: d


  8. What is the desired length of the zone of Overtaking sight distance (OSD)?


    1. 3 OSD
    2. 4 OSD
    3. 5 OSD
    4. 6 OSD

    View Answer
    Answer: c


  9. At highway stretches where the required overtaking sight distance cannot be provided, it is advisable to incorporate which one of the following?


    1. At least twice the safe stopping sight distance
    2. Half the required overtaking sight distance
    3. One-third the required overtaking sight distance
    4. At least three times the safe stopping distance

    View Answer
    Answer: a


  10. The relationship between Intermediate sight distance (ISD) and Stopping sight distance (SSD) is ...


    1. ISD = SSD
    2. ISD = 2 SSD
    3. ISD = 1/2 SSD
    4. ISD = 3 SSD

    View Answer
    Answer: b






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Highway Engineering Questions (h3)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.



  1. As per IRC, what is the value of camber for Thin Bituminous surface when the rainfall is light?


    1. 1.7 %
    2. 2.0 %
    3. 2.5 %
    4. 3.0 %

    View Answer
    Answer: b
    Click Here for more info

  2. What is the percentage cross-slope of Plain terrain?


    1. 0 to 10
    2. 10 to 25
    3. 25 to 60
    4. Greater than 60

    View Answer
    Answer: a
    Options (b), (c) and (d) are correct for Rolling terrain, Mountainous terrain and Steep terrain respectively.

  3. What is the width of the carriageway having two lanes with raised curbs?


    1. 3.75 m
    2. 7.0 m
    3. 7.5 m
    4. 8 m

    View Answer
    Answer: c
    The width of carriageway having single lane is 3.75 m, having two lanes without raised curbs is 7.0 m.

  4. In case of state highways (2 lanes), what is the width of the roadway in rolling terrain?


    1. 12 m
    2. 9 m
    3. 7.5 m
    4. 4.75 m

    View Answer
    Answer: a

  5. Road land does not consist ...


    1. Shoulder
    2. Road margin
    3. Roadway
    4. Building line

    View Answer
    Answer: d

  6. What is the total reaction time suggested by IRC?


    1. 2 seconds
    2. 2.5 seconds>
    3. 3 seconds
    4. 4 seconds

    View Answer
    Answer: b

  7. What is "E" in the "PIEV" theory?


    1. Execution
    2. Enforcement
    3. Enactment
    4. Emotion

    View Answer
    Answer: d

  8. As per IRC, what is the value of longitudinal friction?


    1. 0.25 to 0.35
    2. 0.35 to 0.4
    3. 0.35 to 0.5
    4. 0.4 to 0.5

    View Answer
    Answer: b

  9. As per IRC, what is the height of eye level of the driver?


    1. 0.5 m
    2. 1 m
    3. 1.2 m
    4. 1.5 m

    View Answer
    Answer: c

  10. If the vehicle moves up the grade then the stopping sight distance will ...


    1. Decrease
    2. Increase
    3. Remains same
    4. Depend on other factors

    View Answer
    Answer: a






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Highway Engineering Questions (h2)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.



  1. Arrange the following stages of surveys in a chronological order.


    1. Reconnaissance
    2. Preliminary surveys
    3. Map Study
    4. Final location and detail survey

    1. (3),(2),(1),(4)
    2. (3),(1),(2),(4)
    3. (1),(2),(3),(4)
    4. (2),(1),(3),(4)


    View Answer
    Answer: b

  2. Which of the following factors is the most important factor of all in controlling the geometric design elements of highways?


    1. Design speed
    2. Topography
    3. Traffic factors
    4. Design hourly volume and capacity

    View Answer
    Answer: a
    Design of almost every geometric design element of a road is dependent on the design speed.

  3. Consider the following statements and select the correct option.


    1. The skid occurs when the path travelled along the road surface is more than the circumferential movements of the wheel.
    2. Slip occurs when a wheel revolves more than the corresponding longitudinal movement along the road.

    1. only (1) is correct
    2. only (2) is correct
    3. both statements are wrong
    4. both statements are correct


    View Answer
    Answer: c

  4. Which of the following pairs will give maximum friction?


    1. Wet road and new tyres with treads
    2. Dry road and smoothened tyres
    3. Dry road and new tyres with treads
    4. Wet road and smoothened tyres

    1. only (1)
    2. Both (1) and (2)
    3. Both (3) and (4)
    4. Only (3)


    View Answer
    Answer: b
    Smooth and worn out tyres offer higher friction factors on dry pavements then new tyres with treads because of a large area of contact.
    But on wet pavements, new tyres with good treads give higher friction factors than worn out tyres because the lubrication effect of water on the wet surface is reduced as the water entrapped between the tyre and pavement escapes into treads of the tyre.

  5. As per IRC, the longitudinal friction coefficient values for the calculation of stopping distance is ...


    1. 0.15 to 0.35
    2. 0.35 to 0.38
    3. 0.35 to 0.40
    4. 0.40 to 0.45

    View Answer
    Answer: c

  6. As per IRC, the value of lateral friction coefficient is ...


    1. 0.15
    2. 0.20
    3. 0.30
    4. 0.35

    View Answer
    Answer: a

  7. A good pavement has unevenness of less than ...


    1. 100 cm/km
    2. 150 cm/km
    3. 200 cm/km
    4. 250 cm/km

    View Answer
    Answer: b

  8. Which of the following pavement surfaces give good visibility at night?


    1. Light coloured or white pavement surface
    2. Blacktop pavement surface
    3. Both (a) and (b)
    4. Neither (a) nor (b)

    View Answer
    Answer: a

  9. What is the main objective of providing the camber?


    1. To prevent the entry of surface water into the subgrade
    2. To prevent the entry of surface water into the bituminous layers
    3. To remove the rainwater from the surface as quickly as possible
    4. All of the above

    View Answer
    Answer: c
    The pavement becomes very unsafe for vehicle operation at high speeds when the pavement is wet.

  10. Which of the following shapes of camber is prefered?


    1. Straight line
    2. Parabola
    3. Combination of (a) and (b)
    4. Any of the above

    View Answer
    Answer: c





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Highway Engineering Questions (h1)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.



  1. What is the density of the national highway in India in KM/1000 sq. KM?


    1. 46.6
    2. 31.5
    3. 29.3
    4. 59.3

    View Answer
    Answer: b

  2. Which of the following recommendations giving by Jayakar committee is wrong?


    1. The road development in the country should be considered as a national interest.
    2. An extra tax should be levied on petrol from the road users to develop a road development fund called Central Road Fund.
    3. An official technical body should be formed to pool technical know-how from various parts of the country and act as an advisory body on various aspects of roads.
    4. A research organisation should be instituted to carry out research and development work and to be available for consultation.

    View Answer
    Answer: c
    It should be
    A semi-official technical body should be formed to pool technical know-how from various parts of the country and act as an advisory body on various aspects of roads.

  3. When was Indian Roads Congress formed?


    1. 1929
    2. 1931
    3. 1933
    4. 1934

    View Answer
    Answer: d

  4. What was the objective of the Motor vehicle act?


    1. To regulate the road traffic in the form of traffic laws, ordinance and regulations
    2. To regulate the road tax
    3. To regulate the usage of the vehicle
    4. None of the above

    View Answer
    Answer: a
    The motor vehicle act came in to force in 1939 to regulate the road traffic in the form of traffic laws, ordinance and regulations.

  5. When Central Road Fund was established?


    1. 1929
    2. 1932
    3. 1934
    4. 1936

    View Answer
    Answer: a

  6. In which of the following twenty year plans, the expressway was considered for the first time?


    1. First
    2. Second
    3. Third
    4. None of the above

    View Answer
    Answer: b
    1600 KMs of expressways were considered for the first time in second twenty year plan, also known as Bombay road Plan.

  7. In which of the twenty-year plan, star grid pattern was assumed?


    1. Nagpur Road Plan
    2. Bombay Road Plan
    3. Lucknow Road Plan
    4. None of the above

    View Answer
    Answer: a

  8. During which of the twenty-year plan, square grids of 100 KMs sides were constructed?


    1. Nagpur Road Plan
    2. Bombay Road Plan
    3. Lucknow Road Plan
    4. None of the above

    View Answer
    Answer: c

  9. What was the targeted density of road for the third twenty years roads development plan?


    1. 75 KM/100 sq. KM
    2. 78 KM/100 sq. KM
    3. 82 KM/100 sq. KM
    4. 85 KM/100 sq. KM

    View Answer
    Answer: c

  10. In which year the Motor Vehicle act was revised?


    1. 1961
    2. 1978
    3. 1985
    4. 1988

    View Answer
    Answer: d





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