4-11. Before loading a signal into a Mk 31 Mod 0 signal projector, you should first take what action? 1. Inspect the signal for damage 2. Make sure the signal projector is cocked 3. Clear  all  personnel  from  the  immediate area 4. Make   sure   the   signal   projector   is   not cocked 4-12. A  hand-manipulated  signaling  device  is  used for    all    EXCEPT    which    of    the    signaling purposes? 1. Identification 2. Countermeasure 3. Warning 4. Distress 4-13. Pyrotechnic    pistols    includes    all    EXCEPT which of the following features? 1. Breechloaded 2. Single-shot 3. Double-action 4. Double-barreled 4-14. What is the total weight of a Mk-13 signal? 1. 6.4 ounces 2. 7.2 ounces 3. 8.5 ounces 4. 9.0 ounces 4-15. At  what  prescribed  angle  should  you  hold  a Mk-13 signal? 1. 15° 2. 30° 3. 45° 4. 90° 4-16. A Mk-31 signal projector propels the signal to what prescribed height? 1. 150 to 250 ft 2. 250 to 650 ft 3. 350 to 750 ft 4. 450 to 850 ft 4-17. What is the prescribed weight of an LUU-2B/B flare? 1. 10 lb 2. 20 lb 3. 30 lb 4. 40 lb 4-18. The  LUU-2B/B  flare  consists  of  what  total number of components? 1. Seven 2. Six 3. Five 4. Four 4-19. The   illuminating   candle   in   the   LUU-2B/B aircraft   parachute   flare   is   made   from   what materials? 1. Magnesium,   sodium   nitrate,   and   black powder 2. Magnesium, sodium nitrate, and a polymer binder 3. Magnesium, black powder, and a polymer binder 4. Black    powder,    sodium    nitrate,    and    a polymer binder 4-20. To   initiate   ignition   of   the   candle   in   the LUU-2B/B    aircraft    parachute    flare,    what minimum amount of force must be exerted by the parachute lanyard? 1. 61 lb 2. 81 lb 3. 91 lb 4. 101 lb 4-21. What is the prescribed diameter of an LUU-2B/B parachute? 1. 10 ft 2. 12 ft 3. 18 ft 4. 20 ft 4-22. To   establish   an   initial   contact   point   for   a continued   submarine   search,   which   of   the following means should be used? 1. Smoke only 2. Flame only 3. Smoke and flame 4. Aircraft parachute flares 4-23. To   make   nighttime   use   easier,   the   armed position  of  the  baseplate  on  a  Mk  25  marine location marker is marked in what way? 1. It    is    machined-notched    at    the    armed position 2. It is machined-notched at the safe position 3. It  has  an  illumination  decal  at  the  safe position 4. It has a raised bead at the armed position 20