Weight
2
18.
A main-line running track is constructed of 39-foot rails to Corps of
Engineers specifications.
If the ties used are 9 inches wide,
approximately what percent of the total rail length rests on tie surface?
A.
18.
B.
24.
C.
32.
D.
40.
2
19.
When 39-foot rails are laid at a temperature of 400 F., what is the
difference between their rail gap and that of 33-foot rails laid at the
same temperature?
A.
1/16 inch more.
B.
1/8 inch less.
C.
1/4 inch less.
D.
3/16 inch more.
2
20.
If angle, head-free, and head-contact bars were placed before you, you
could easily identify the angle bar by its:
A.
Head.
B.
Flange.
C.
Web.
D.
Square boltholes.
2
21.
When a rail joint is installed in cold weather, the gap left between rail
sections, in comparison with that left in warm weather, is:
A.
Smaller.
B.
The same.
C.
Greater.
D.
Governed by the humidity.
2
22.
End wear on a rail is referred to as:
A.
Abrasion.
B.
Batter.
C.
Crushing.
D.
Grinding.
21
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