SOLUTIONS TO SELF-TEST
LESSON 4
All references to Frames, Panels, and Appendix I are to the programmed text.
1. 24 1530 Oct 72. Block 2 requires the date/time group of the signature.
LT Duke completed his
reconnaissance at 1530 hours, 24 October 1972. (situation)
2. #1. Block requires information on road alinement. Number 1 is checked since there were no steep gradients
or sharp curves. (situation)
3. f. Block 12b describes the type of road surface, which is indicated as gravel in par. b of the situation.
5. c. The situation states that there were two suitable turnoffs with concealment (scrub oak) at the two points in
question. The symbol for a turnoff with deciduous tree concealment is given on page 5 of Appendix I.
6. c. Pages 8 and 9, Appendix I, and Frames 3-107 to 3-120 explain the composition of the road classification
formula. The letter "B" indicates that there are limiting characteristics. The second letter "s" indicates that the
limiting characteristic is route surface condition. The width of the traveled way and shoulders is expressed as
W5/7.5. The letter "l" is used for roads that have a gravel surface. The length of the road is 8.0km, and the presence
of obstructions Is indicated by (OB).
7. 4. Slab-type bridges are shown as number 4 on page 6 of Appendix I to the programmed text.
8. k. The coded letter for concrete bridges is the letter "k".
9. 60. The situation indicates that the military load class was computed to be 60.
10. 1. The truss type of construction is coded as 1 on page 6 of Appendix I.
11. n. The letter "n" represents wooden construction of any type.
12. The width, depth, and velocity of the stream at the present time, and during low, mean, and high water levels
(Panel 4-7, programmed text).
13. The ford must be listed in Section III, since al fords are considered obstructions. (frames 4-15; 3-73 (Lesson
3))
14. c. Page 12 of Appendix I to the programmed text gives the specifications for measuring critical dimensions,
including clearance for tunnels.
15. 40. Item 9 of Panel 4-9 lists 40 as the class of the ferry. Since it is lower than the class of either of the
approaches listed in item 17, it would be used in the formula. (page 8, App I; Panel 4-9)
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