500 Best Highway Engineering MCQ
Q89). Valley curves are required to be introduced at the situations where
a).A negative grade meets a positive grade
b).A negative grade meets another milder negative grade
c).A negative grade meets a steeper positive grade
d).All of the above
Correct Answer:
None of the above
Explanation:
Q90). Summit curves are required to be introduced at the situations where
a).A positive grade meets a negative grade
b).A positive grade meets another milder positive grade
c).A negative grade meets a steeper negative grade
d).All of the above
Correct Answer:
All of the above
Explanation:
Q91). The minimum length of a valley curve should be such that the head light beam sight distance is equal to the
a).Stopping sight distance
b).Passing sight distance
c).Braking distance
d).None of these
Correct Answer:
Stopping sight distance
Explanation:
Q92). While deriving the formulae for the length of valley curve, it is assumed that the head light is …………… above the road surface
a).0.25 m
b).0.5 m
c).0.75 m
d).1 m
Correct Answer:
0.75 m
Explanation:
Q93). According to IRC:52-1973, the first stage for fixing up alignment of a hill road is
a).Trace cut
b).Detailed survey
c).Preliminary survey
d).Reconnaissance
Correct Answer:
Reconnaissance
Explanation:
Q94). Alignment of a road is finally decided on the basis of
a).Selection of route
b).Feld survey
c).Trace cut
d).None of these
Correct Answer:
Feld survey
Explanation:
Q95). A track of width 1 to 1.2 m constructed along the selected alignment to facilitate access to the area for inspection and detailed survey is known as
a).Inspection trace
b).Terrain
c).Trace out
d).All of these
Correct Answer:
Trace out
Explanation:
Q96). The gradients of trace cuts for hill roads are kept
a).10 to 20% easier than the ruling gradient
b).20 to 25% easier than the ruling gradient
c).10 to 20% steeper than the ruling gradient
d).20 to 25% steeper than the ruling gradient
Correct Answer:
10 to 20% easier than the ruling gradient
Explanation: