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Highway Engineering - section-7
  1. In soils having same values of plasticity index, if liquid limit is increased, then

    2. A.

     Compressibility and permeability decrease and dry strength increases
    B.

     Compressibility, permeability and dry strength decrease
    C.

     Compressibility, permeability and dry strength increase
    D.

     Compressibility and permeability increase and dry strength decreases

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  2. A traffic rotary is justified where

    3. A.

     number of intersecting roads is between 4 and 7
    B.

     space is limited and costly
    C.

     when traffic volume is less than 500 vehicles per hour
    D.

     when traffic volume is more than 5000 vehicles per hour

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  3. Select the correct statement.

    4. A.

     Traffic volume should always be more than traffic capacity.
    B.

     Traffic capacity should always be more than traffic volume.
    C.

     Spot speed is the average speed of a vehicle at a specified section.
    D.

     85th percentile speed is more than 98th percentile speed.

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  4. The group index for a soil, whose liquid limit is 40 percent, plasticity index is 10 percent and percentage passing 75 micron IS sieve is 35, is

    5. A.

     0
    B.

     3
    C.

     5
    D.

     7

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  5. Los Angeles testing machine is used to conduct

    6. A.

     Abrasion test
    B.

     Impact test
    C.

     Attrition test
    D.

     Crushing strength test

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  6. Compared to a level surface, on a descending gradient the stopping sight distance is

    7. A.

     less
    B.

     more
    C.

     same
    D.

     dependent on the speed

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  7. The effect of grade on safe overtaking sight distance is

    8. A.

     to increase it on descending grades and to decrease it on ascending grades
    B.

     to decrease it on descending grades and to increase it on ascending grades
    C.

     to increase it on both descending and ascending grades
    D.

     to decrease it on both descending and ascending grades

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  8. To calculate the minimum value of ruling radius of horizontal curves in plains, the design speed is given by

    9. A.

     8 kmph
    B.

     12kmph
    C.

     16kmph
    D.

     20 kmph

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  9. The maximum allowable Los Angeles abrasion value for high quality surface course is

    10. A.

     10%
    B.

     20 %
    C.

     30%
    D.

     45 %

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  10. The binder normally used in flexible pavement construction is

    11. A.

     cement
    B.

     lime
    C.

     bitumen
    D.

     none of the above

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