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: