2-53. What component of a rocket launcher is used to prevent loaded rockets from being fired? 1. A safety switch 2. A breaker switch 3. An intervalometer 4. A mode selector switch 2-54. When  rocket  launchers  are  loaded,  the  detent pin should be installed in the breaker switch at which of the following times? 1. Before aircraft flight 2. After the rockets have been loaded 3. Before  the  launcher  is  loaded  with  rocket motors 4. Before  the  launcher  is  loaded  on  the  air- craft 2-55. When  the  mode  selector  switch  in  a  19-shot pod  is  in  the  single-fire  position,  what  total number    of    rockets    are    fired    by    the    in- tervalometer for each firing pulse it receives? 1. Six 2. Two 3. Eight 4. Four 2-56. In  the  LAU-10  series,  rocket  launcher,  what component   retains   the   rocket   motor   in   the launching tubes during shipping, handling, and flight? 1. A spring-loaded detent pawl 2. A detent lift tool 3. A detent lift handle 4. A rocket-firing contact band 2-57. The rocket motor is retained in a launcher tube by what means? 1. A detent 2. A cotter pin 3. An arming latch 4. A firing contact 2-58. What authority may authorize the disassembly or alteration of rocket components? 1. CO 2. NAVSEASYSCOM 3. NAVAIRSYSCOM 4. EOD 2-59. When a rocket is fired from the LAU-10 series launcher, what force causes the detent pawl to release from the rocket detent groove? 1. Spring tension 2. Motor thrust 3. Motor blast 4. Mechanical energy 2-60. Rocket  motors  should  be  stowed  in  the  same manner as which of the following powders or explosives? 1. Smokeless powder 2. High explosives 3. Low explosives 4. Black powder 2-61. A  rocket  motor  should  NOT  be  used  if  it  has been   dropped   more   than   what   prescribed number of feet? 1. 8 ft 2. 2 ft 3. 10 ft 4. 4 ft 2-62. When,  if  ever,  should  you  attempt  to  remove the base fuze from a rocket warhead? 1. After the warhead has been dropped more than 4 feet 2. After    external    evidence    of    arming    is evident 3. After  receiving  orders  from  your  super- visor 4. Never 2-63. Fuzes  and  warheads  should  be  disposed  of  if they are dropped onto a hard surface more than what prescribed number of feet? 1. 5 ft 2. 2 ft 3. 3 ft 4. 4 ft 2-64. When, if ever, should a loaded rocket launcher be electrically tested? 1. Before the warhead is installed 2. After the fuze is installed 3. When it is being loaded on the aircraft 4. Never 11