This set of Highway Engineering Assessment Questions and Answers focuses on “Alignment of Hill Roads – 2”.
1. The alignment of hill roads is divided into how many stages?
a) One
b) Two
c) Three
d) Four
View Answer
Explanation: The alignment of hill road is divided into three stages namely reconnaissance, trace cut and detailed survey.
2. The general route for alignment is selected during __________
a) Reconnaissance
b) Trace cut
c) Detailed survey
d) Detailed project report
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Explanation: The general route for the alignment is selected during the reconnaissance survey and after any problem is found it is modified later.
3. The bench marks are fixed during the __________
a) Preliminary survey
b) Reconnaissance
c) Detailed survey
d) After detailed project report
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Explanation: The bench marks are fixed and longitudinal and cross section are obtained during the detailed survey.
4. What is the strip length to be surveyed on the straight alignment?
a) 5 m
b) 10 m
c) 15 m
d) 30 m
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Explanation: The strip length required to be surveyed on the straight paths is 15 m and on curves it is 30 m.
5. What is the speed limit on the national highway on hill road in Kmph?
a) 60
b) 50
c) 40
d) 30
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Explanation: The speed limit on the national highway for hill road is 50 Kmph and on curves it is 30 Kmph, in plain rotary it is 40 Kmph and on plain it is 60 Kmph.
6. What is the minimum right of way distance in exceptional cases?
a) 7 m
b) 5 m
c) 3 m
d) 4 m
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Explanation: The minimum right of way required is 5 m but in exceptional cases it should be 3 m, it is good if it is 7m.
7. The pavement width for a single lane road on a hill is __________
a) 3.5 m
b) 3.75 m
c) 7.0 m
d) 7.5 m
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Explanation: The pavement width required for a single lane pavement is 3.75 m and 7 m for two lanes, on the national highway it is 7.5m.
8. The flatter camber may be provided if the road has a longitudinal gradient greater than __________
a) 1 in 40
b) 1 in 35
c) 1 in 30
d) 1 in 20
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Explanation: The flatter camber may be provided if the longitudinal gradient is greater than 1 in 20, if it is 1 in 30 or 1 in 45, then a cross slope may be provided.
9. The camber for the earth roads should be never less than __________
a) 4%
b) 3.75%
c) 3.5%
d) 3.0%
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Explanation: The camber value recommend for the earth roads in hill alignment is 3.0 to 4.0%, so it should be never less than 3.0%.it may vary depending on the type of road like for bitumen it is 4.0%.
10. What is the stopping sight distance for a speed limit of 50 Kmph?
a) 30 m
b) 40 m
c) 60 m
d) 120 m
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Explanation: The stopping sight distance as recommended by IRC is 60 m for a speed of 50 Kmph, for the value of 40,30 the SSD is 40m and 30 m, 120 m is the ISD.
11. What is the intermediate sight distance for a speed limit of 50 Kmph?
a) 120 m
b) 60 m
c) 40 m
d) 30 m
View Answer
Explanation: The intermediate sight distance is equal to twice the stopping sight distance.
12. What is the maximum super elevation on snow bound area?
a) 3.0%
b) 5.0%
c) 7.0%
d) 10.0%
View Answer
Explanation: The maximum permissible slope is 10% in hill roads, but in snow area it is 7.0% only.
13. The minimum sufficient straight distance between the transitional ends for reverse curves is __________
a) 3.0 m
b) 5.0 m
c) 9.0 m
d) 12.0 m
View Answer
Explanation: The minimum distance between the two transitional ends for reverse curves is 9.0 m.
14. The absolute minimum radius of the curve in snow bound area is __________
a) 60 m
b) 70 m
c) 80 m
d) 90 m
View Answer
Explanation: The minimum absolute radius of the snow bound area as recommended by IRC is 60 m, it may be up to 90 m depending on the area.
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