9-10.
When you stake pole locations, the
guard stake for the offset hub
contains which of the following
information?
1.
Finished elevation
2.
Line elevation
3.
Station number
4.
Existing elevation
9-11.
When laying out a route for towers,
how are changes in direction
handled?
1.
In 30° increments
2.
In 15° increments
3.
In whatever manner possible
4.
In a gradual curve in a
succession of chords
Learning Objective: Recognize
principles and practices
associated with natural and
artificial drainage.
9-12.
What type of drainage system is
the most desirable way to remove
surface water?
1.
Underground
2.
Open ditch
3.
Collection ponds
4.
French drain
9-13.
What does the term runoff mean in
relation to drainage?
1.
The amount of rainfall not
absorbed
2.
Water attempting to attain the
lowest point due to gravity
3.
Only the water collected in
collection ponds
4.
Water carried by the storm
sewer system
9-14.
Artificial drainage is used for
what purpose?
1.
To aid the natural drainage
2.
To impede the natural drainage
3.
To offset damage to the natural
drainage due to construction
4.
To improve the efficiency of
the drainage ditches
9-15.
The walls constructed at the
outfall of a culvert are called
1.
wing walls
2.
catch basin walls
3.
end walls
4.
outlet walls
9-16.
What appurtenance for a storm sewer
system is located where trunk lines
converge?
1.
A manhole
2.
A box
3.
A junction box
4.
A grate
9-17.
Stationing for sewer pipe is laid
out in what manner?
1.
By the length of the pipe
2.
By the horizontal distance
covered
3.
By the vertical distance
covered
4.
By any of the above methods
9-18.
A plan and profile of a storm sewer
line is developed after which of
the following surveys?
1.
Preliminary
2.
Reconnaissance
3.
Final-location
4.
As-built
Learning Objective: Compute
cross sections by resolving
into triangles, by formula for
three-level section, and by
coordinates for a five-level or
irregular section.
9-19.
Area by resolution involves divid-
ing the area into what type of
figures for ease of calculation?
1.
Irregular polygons
2.
Trapezoids
3.
Triangles
4.
Both 2 and 3 above
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