Question

Choose the correct answer:
1- The stopping sight distance depends upon:
a) design speed, driver perception & reaction time, vehicle acceleration rate and road slope
b) design speed, vehicle length, vehicle acceleration rate and road width
c) vehicle length, vehicle width, vehicle speed and road slope
d) wind speed, road slope, road curvature and side friction factor
none of the above
2- The superelevation rate of a highway has a design speed of 100kph, radius of 393.7m and side friction
factor of 0.12 is:
a) 4%
b) 6%
c) 8%
d) 10%
e) none of the above
3- Camber in the road cross-section is generally provided for:
a) counteracting the centrifugal force
b) effective drainage
c) having proper sight distance
d) dividing the carriageway
e) none of the above
4- The highway geometric design can be well presented by:
a) longitudinal profile only

b) plan only
c) cross-section elements only
d) all of the above
e) none of the above
5- The length of a vertical curve formed by two gradients +4% and -3% with a rate of vertical curvature of
17 is:
a) 119m
b) 139m
c) 159m
d) 179m
e) none of the above
6- For the movement of vehicles at an intersection of two roads, without any interference, the type of grade
separator generally preferred to, is:
a) trumpet
b) cloverleaf
c) partial cloverleaf
d) diamond
e) none of the above
7- The minimum desirable longitudinal slope required for drainage purposes is:
a) 0.03%
b) 0.30%
c) 1.30%
d) 2.30%
e) none of the above
8- Raising of outer edge of a road with respect to inner edge, is known:
a) widening
b) excavating
c) filling
d) grading
e) none of the above

9- In ice or snow conditions, the maximum limit of the superelevation rate should be:
a) not changed
b) decreased
c) increased
d) 20%
e) 2%
10- The highest point on a vertical symmetrical curve lies in the middle of the curve when:
a) the left grade is greater than the right grade
b) the left grade is smaller than the right grade
c) the left grade equals the right grade
d) none of the above
e) all of the above

Answer 1