Highway Engineering

21. As per recommendations of I.R.C., traffic volume study is carried out for rural roads for 7 days continuously during

1. Harvesting
2. Lean season
3. Harvesting and lean season
4. None of these

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22. At a road junction, 16 cross conflict points are severe, if

1. Both are one-way roads
2. Both are two-way roads
3. One is two-way road and other is one-way road
4. None of these

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23. At a road junction, 7 cross conflict points are severe if

1. Both are one-way roads
2. Both are two-way roads
3. One is two-way road and other is one-way road
4. None of these

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24. At intersection of roads, the traffic volume study is carried out to ascertain the number of vehicles

1. Moving along straights
2. Turning left
3. Turning right
4. All the above

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25. Before providing super-elevation on roads, the portion of the carriageway between the crown and the outer edge is made

1. To have a reduced fall
2. Horizontal
3. To have slope of the camber on the other half of the carriageway
4. None of these

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26. Bitumen of grade 80/100 means

1. Its penetration value is 8 mm
2. Its penetration value is 10 mm
3. Its penetration value is 8 to 10 mm
4. Its penetration value is 8 to 10 cm

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27. Border Roads Organisation for hilly regions (India), was formed in

1. 1947
2. 1954
3. 1958
4. 1960

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28. Bottom most layer of pavement is known as

1. Wearing course
2. Base course
3. Sub-base course
4. Sub-grade

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29. Bottom-most component of a flexible pavement, is

1. Sub-grade
2. Sub-base
3. Base
4. Base course

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30. California Bearing Ratio method of designing flexible pavements is more accurate as it involves

1. Characteristics of soils
2. Traffic intensities
3. Character of the road making materials
4. None of these

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