46 ES Home Study Pkg 8

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Across
  1. 2. narrow strip of soil maintained to prevent soil falling back in the trench
  2. 4. the B is CBRN stands for
  3. 8. a fence comprised of staggered long pickets and three rolls of concertina stacked in a triangular shape
  4. 9. the N in CBRN stands for
  5. 12. one of two principles of obstacle placement "covered by..."
  6. 14. minimum distance in metres between the enemy side of an obstacle and friendly defensive positions
  7. 15. a small hole excavated near the bottom of the trench to reduce blast and shrapnel effects in the event of grenades
  8. 20. a wooden obstacle designed to be emplaced in the water and covered by 0.3 - 0.6m of water at high tide
  9. 21. a catwire fence comprised of one row of stacked concertina between pickets
  10. 22. one of two parts of a fire trench
  11. 23. the reason that the maximum distance from an obstacle to a friendly defensive position is 200 metres
  12. 25. a fence comprised of four rolls of concertina stacked in a triangular formation with an apron on each side
  13. 26. reduce silhouette when placed behind a fire trench
  14. 27. a concrete obstacle, triangular in shape with a weight of approximately 1 metric ton
  15. 28. an illuminating device which may be emplaced in conjunction with a wire obstacle to give advance notice of an enemies engagement
Down
  1. 1. the C in CBRN stands for
  2. 3. the R in CBRN stands for
  3. 5. a fence comprised of short pickets and barbed wire, easily concealed in low grass and shrubs
  4. 6. -trench, second of two parts of a fire trench
  5. 7. a log and earth obstacle comprised largely of a log box filled with earth
  6. 10. the historic name of the C19 defensive command detonated weapon (used to be an M18)
  7. 11. a log or timber obstacle created by stacking and lashing timbers together and fixing them to the ground
  8. 13. the first stage of constructing a fire trench
  9. 16. the acronym for the CBRN survival rule
  10. 17. a linear vehicle obstacle made using heavy equipment to excavate earth
  11. 18. a fence comprised of both long and short pickets with barbed wire forming a slope on both sides
  12. 19. a movable obstacle often used to close gaps or lanes
  13. 23. a vehicle obstacle created by falling large trees via mechanical or explosive means to block a roadway
  14. 24. acronym used to remember fire control orders
  15. 25. a steel vehicle obstacle made of three posts or spars welded or fastened together
  16. 28. the second of two principles of obstacle placement "covered by..."