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Weight
Exercise
5
13.
B.
(pars. 4.2, 4.3; table IV)
5
14.
B.
(par. 4.4)
Number of switch crews = SE x 2 x 1.25
= 8 x 2 x 1.25
= 20
5
15.
D.
(pars. 3.4, 3.5)
EDT x percent = tons by type + by car capacity = DD
3,800 x .60 = 2, 280 + 20 = 114(DD)
DD x TAT x 10% = number of cars by type
114 x 9 = 1,026
1,026 x .10 = 102+, or 103
103 + 1,026 = 1,129
5
16.
C.
(pars. 3.4, 3.5)
3,800 x .30 = 1,140 + 20 = 57
57 x 9 = 513
513 x .10 = 51+, or 52
513 + 52 = 565 gondolas
11
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