Civil Engineering - Highway Engineering
Exercise :: Highway Engineering - Section 3
26.
Curves in the same direction separated by short tangents, are called
A. simple circular curves B. compound curves C. transition curves D. broken-back curves. E. None of these.
Answer: Option D
Explanation:
27.
When an up gradient of a highway meets a downgrade, the vertical curve provided, is known as
A. valley curve B. sag curve C. summit curve D. all the above.
Answer: Option C
Explanation:
28.
If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is
A. 32.44 km/hour B. 42.44 kg/hour C. 52.44 km/hour D. 62.44 km/hour E. 72.44 km/hour
Answer: Option C
Explanation:
29.
The maximum distance of the apex of a vertical curve of length L from the point of intersection of two grades + g 1 %, and - g 2 % (g 1 > g 2 ), is
Answer: Option C
Explanation:
30.
The wall constructed for the stability of a back filling portion of a road on the down hill side, is known as
A. retaining wall B. breast wall C. parapet wall D. all the above.
Answer: Option A
Explanation:
