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EMERGENCY COMMUNICATIONS - 14325_339
MATERIAL CONDITIONS OF READINESS - 14325_341

Basic Military Requirements (BMR) Revised Edition
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ships so equipped. This alarm is sounded when there has been a CBR attack on or in the vicinity of the ship. All hands must exercise protective measures and procedures to reduce exposure and personnel injuries. General Alarm The general alarm signal is sounded by the OOD to notify the crew of a battle condition (GQ). Immediately after the alarm is sounded, some ships pass the word, “General quarters, general quarters, all hands man their battle stations.” All hands report to preassigned stations following the correct GQ traffic routes and set material condition ZEBRA. Flight Crash Alarm The flight crash alarm is sounded by the OOD or PreFly to notify ship’s company of a pending or actual flight deck emergency. MESSENGERS Messengers  are  used  to  deliver  written  messages between repair lockers and DCC as a matter of record. If all methods of communications have failed, messengers are used to relay orders and information. Messengers deliver  messages  between  repair  lockers  and  DCC, between  DCC  and  the  bridge,  or  between  other locations. Messengers should be familiar with the ship to  get  from  one  place  to  the  other  without  delay. Messengers  must  be  able  to  deliver  oral  messages without error. REVIEW 3 QUESTIONS Q1.   The  X40J  circuit  is  commonly  referred  to  as what kind of line? Q2.   List the names of the alarms that can override the microphone control of the 1MC. a. b. c. d. Q3.   When all communications systems fail, how are messages  and  orders  relayed  between  repair lockers and DCC? SHIP’S INTEGRITY THROUGH SUBDIVISION Learning Objective: When you finish this chapter, you will be able to— Identify  material  conditions  of  readiness  and recognize their purpose. Naval  ships  are  subdivided  into  many  small watertight rooms or as we say watertight compartments. This breaking up process of a very large area is called the “compartmentation process.” It limits the spread of toxic  or  noxious  gases,  fire  and  flooding,  and  other battle  damage  when  it  occurs.  This  system  when combined  with  material  conditions  of  readiness (discussed below) increases a ship’s ability to survive. Each space or compartment on a ship is accessed through a door to a new space or passageway connecting other spaces on the same deck or to the weather deck area (outside). The space may have a hatch or scuttle that allows transit from one deck to another via a ladder. In some spaces you may have many doors, hatches, and scuttles. These accesses are either watertight, airtight, fumetight, oiltight, or nontight by design. Piping and ventilation systems work on the same concept  as  compartment  access  fittings.  They  have valves at strategic points that will isolate sections of a system, limiting the spread of damage to smaller areas. Because of all the fittings and closures that are on a ship, you might be asking yourself the question, “How will I know which ones to close or leave open and when to do it?”  Those  answers  are  covered  in  the  paragraphs  to follow. 12-10 Student Notes:







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