Lesson Practice Exercise

Instructions: The following items will test your grasp of the material covered in this lesson. There is only one correct answer for each item. When you complete the exercise, check your answers with the answer key that follows. If you answer any item incorrectly, restudy that part of the lesson that contains the portion involved.

1. Why is it important to design a protective structure so that direct fire strikes it obliquely?

A. So that direct fire will not ricochet off the structure

B. To increase the possibility of penetration

C. To increases the apparent thickness of the structure and decrease the possibility of penetration

D. To decrease the possibility of a penetration by decreasing the apparent thickness of the structure to prevent a ricochet

2. The energy distribution of tactical nuclear weapons consists of what initial effects?

A. HE, fragmentation, EMP, nuclear radiation, and thermal radiation

B. Blast, thermal radiation, and nuclear radiation

C. Blast, EMP, nuclear radiation, kinetic energy, and residual effects

D. None of the above

3. Which shielding material is more likely to deform a projectile as it penetrates?

A. Steel

B. Concrete

C. Soil

D. Rock

4. The structure of a fighting or a protective position depends on the—

A. Material composition

B. Weapon or weapon effect it is designed to defeat

C. Stress component of the structure design

D. Type of shielding

5. Untimbered tunnels are generally how wide and high?

B. 5 feet wide and 6 to 7.5 feet high

C. 4 feet wide and 6 feet high

6. What is the primary location for a parapet on a fighting position?

A. Frontal

B. Overhead

C. Flanks

D. Rear

7. Methods of constructing fighting and protective positions consist of what procedures?

A. Sandbagging, hole tamping, and tunneling

B. Sandbags, explosive excavation, and excavation revetments

C. Planning, position design, and construction

D. None of the above

8. When using explosive excavation, boreholes are dug to what depth?

A. Two-thirds of the desired excavation

B. One-half of the desired excavation

C. One-half of the desired excavation

D. Three-fourths of the desired excavation

9. What is the easiest and most efficient method to prevent the targeting and destruction of a position or shelter?

A. Proper construction

B. Mutual support

C. Type of construction material

D. Camouflage and concealment

10. What is the most effective means to evaluate the effectiveness of a position's camouflage?

A. Amount of camouflage placed on the position

B. Type of camouflage used

C. Check the position from a suspected enemy avenue of approach

D. Fields of fire

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