2
b.
Ups and downs.
2
c.
Centerline.
2
d.
Ground plan.
2
e.
Grades.
9.
Traffic density on a rail line should be used as a basis in determining:
2
a.
If tangents should be superelevated.
2
b.
The standard of maintenance for the line.
2
c.
If curvature and gradient should be reduced by extensive construction.
2
d.
The number of turnouts needed.
2
e.
If vertical curves should be used.
Matching
10.
In studying the fundamentals of railway engineering, you become familiar with
certain terms and their definitions. Match the terms in column II with the
definitions in column I. Terms in column II may be used once, more than
once, or not at all.
Column I
Column II
2
(1)
Distance between the
A.
Superelevation.
two rails of track.
B.
Clearance.
2
(2)
Relationship between the
height of the two rails.
C.
Cross level.
2
(3)
Land on which the tracks
D.
Profile.
are laid.
E.
Alinement.
2
(4)
The combination of
curves and tangents which
F.
Track surface.
(continued)
4
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