Set 3-7. REVIEW OF OBSTRUCTIONS
(easy, difficult; impossible) (3-69)
FRAME 3-70
The sample route symbolized below will be used for two-way class 40 military vehicles. How many obstacles
have been symbolized along the route?
FRAME 3-100.
A tunnel or underpass represents an obstruction to travel when either overhead __________ or traveled way
__________________ is below the minimum. In either case, the figures are __________________________ .
3-20
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