Worksheets30/01/26-Civilwar-Overseer grade 1-Geometric design 1
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
In highway engineering the term gradient refers to:
a)
Horizontal curvature per unit length
b)
Rate of rise or fall of the road along its length with respect to horizontal
c)
Thickness of pavement layers
d)
Cross slope provided for drainage
2.
IRC ruling gradient for plain terrain is approximately:
a)
1 in 20 (5 percent)
b)
1 in 30 (3.3 percent)
c)
1 in 16.7 (6 percent)
d)
1 in 14.3 (7 percent)
3.
The maximum recommended length of an exceptional gradient is:
a)
50 m
b)
75 m
c)
100 m
d)
200 m
4.
The ideal minimum gradient recommended for drainage on a level road is:
a)
1 in 50
b)
1 in 150
c)
1 in 300
d)
1 in 500
5.
Grade compensation becomes necessary mainly because:
a)
Curves reduce camber to zero
b)
Combined effect of curve and gradient increases traction resistance
c)
Curves reduce centrifugal force
d)
Gradient automatically increases on curves
6.
The formula for grade compensation percent is:
a)
(R + 30) / (30R)
b)
R / (30 + R)
c)
(30 + R) / R
d)
30R / (30 + R)
7.
The rate of superelevation e is defined as:
a)
Width of pavement /height of outer edge
b)
Height of outer edge /width of pavement
c)
Speed /radius
d)
Friction /camber
8.
Maximum practical value of superelevation in general is:
a)
3 percent
b)
5 percent
c)
7 percent
d)
10 percent
9.
Standard road design relation is:
a)
e + f = V / (127R)
b)
e + f = V2 / (127R)
c)
e + f = 127R / V2
d)
e-f = V2 / (127R)
10.
Correct statement about rotation of pavement about centre line is:
a)
Good drainage but costly
b)
Balanced earthwork but drainage problems
c)
No disadvantages
d)
Best for hilly roads
100 %