navy damage control
Navy shipboard damage control: objectives, DC organization (DCA, DC Central, Repair 1-8, investigators, rapid response team, fire marshal), DCPO duties and the closure log, material conditions XRAY/YOKE/ZEBRA and fitting markings, compartment numbering, fire science and fire classes, and firefighting systems. Source: Damage Controlman NAVEDTRA 14057 (2001 edition, public release). Check current ship and NSTM guidance for equipment that has changed since 2001.
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01What are the three basic objectives of shipboard damage control?
Take all practicable preliminary measures to prevent damage; minimize and localize damage as it occurs; and make emergency repairs quickly, restore equipment and care for the injured.
VERIFIED AGAINST THE SOURCE
“Accomplish emergency repairs as quickly as possible, restore equipment to operation, and care for injured personnel.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 1 ↗02Who is the damage control assistant (DCA) responsible to for the control of damage?
The engineer officer.
VERIFIED AGAINST THE SOURCE
“The damage control assistant (DCA) is responsible to the engineer officer for the control of damage.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 7 ↗03Where is the damage control assistant's battle station?
Damage Control Central (DCC).
VERIFIED AGAINST THE SOURCE
“The battle station for the damage control assistant (DCA) is in DCC.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 2 ↗04Who supervises the personnel assigned to Damage Control Central?
The damage control assistant (DCA).
VERIFIED AGAINST THE SOURCE
“Personnel assigned to the DCC are under the supervision of the DCA.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 2 ↗05What does Damage Control Central do with reports from the repair parties?
It receives and evaluates the information from all repair parties.
VERIFIED AGAINST THE SOURCE
“Receive and evaluate information from all repair parties.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 3 ↗06What must each ship designate as its secondary Damage Control Central?
A repair party.
VERIFIED AGAINST THE SOURCE
“Each ship must designate a repair party as secondary DCC.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 3 ↗07What is Repair 1, and who is in charge of it?
The main deck repair party. An officer or chief petty officer from a deck division is in charge.
VERIFIED AGAINST THE SOURCE
“Repair 1 (Main Deck Repair Party).— An officer or chief petty officer from a deck division is in charge.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 3 ↗08Which repair parties are Repair 2, Repair 3 and Repair 4?
Repair 2 is the forward repair party, Repair 3 the after repair party, and Repair 4 the amidship repair party. Repairs 3 and 4 are made up the same as, or very like, Repair 2.
VERIFIED AGAINST THE SOURCE
“Repair 4 (Amidship Repair Party).— Same as or very similar to Repair 2.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 5 ↗09What is Repair 5, and who is in charge of it?
The propulsion repair party. An engineering department officer is in charge.
VERIFIED AGAINST THE SOURCE
“Repair 5 (Propulsion Repair Party).— An engineering department officer is in charge.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 5 ↗10What is Repair 6, and who is in charge of it?
The ordnance repair party. A weapons department officer or chief petty officer is in charge. It is made up of Gunner's Mates, Fire Control Technicians and Electrician's Mates.
VERIFIED AGAINST THE SOURCE
“Repair 6 (Ordnance Repair Party).— An officer or chief petty officer of the weapons department is in charge. This repair party is comprised of Gunner’s Mates, Fire Control Technicians, and Electrician’s Mates.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 5 ↗11Which repair party covers the gallery deck and island structure, and on what ships is it required?
Repair 7. It is required on aircraft carriers and may be needed on other types of ships.
VERIFIED AGAINST THE SOURCE
“Repair 7 (Gallery Deck and Island Structure Repair).— This repair party is required on aircraft carriers and may be necessary on other types of ships.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 5 ↗12What is Repair 8, and who is in charge of it?
The electronics repair party. An operations department officer or chief petty officer is in charge.
VERIFIED AGAINST THE SOURCE
“Repair 8 (Electronics Repair Party).— An officer or chief petty officer of the operations department is in charge.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 5 ↗13How do damage control investigators normally operate?
In pairs. They travel assigned routes and report conditions to the repair locker.
VERIFIED AGAINST THE SOURCE
“Investigators normally operate in pairs, travel assigned routes, and report conditions to the repair locker.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 9 ↗14When is the rapid response team required, and who leads it?
In port and at sea when the ship is not in Condition I. The fire marshal leads it.
VERIFIED AGAINST THE SOURCE
“The rapid response team is required in port and at sea during non-Condition I. The team shall be led by the fire marshal.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 8 ↗15A fire grows beyond what the rapid response team can handle. What does the fire marshal do?
Turns the duties over to the scene leader and takes on other duties as directed.
VERIFIED AGAINST THE SOURCE
“If the fire is beyond rapid-response team capabilities, the fire marshal shall turn duties over to the scene leader and assume other duties as directed.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 9 ↗16After the scene leader relieves the fire marshal, what does the fire marshal watch closely?
The big picture, with particular attention to the chance of vertical fire spread.
VERIFIED AGAINST THE SOURCE
“marshal must assume a “big picture” role upon being relieved by the scene leader providing particular attention to the potential for vertical fire spread.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 2, PDF p. 9 ↗17How is a fire that breaks out while the ship is at general quarters handled?
As a battle casualty.
VERIFIED AGAINST THE SOURCE
“Fires and other damage that occur while the ship is at general quarters will be handled as a battle casualty.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 7 ↗18What checklists must a division damage control petty officer (DCPO) make sure are prepared and maintained?
Damage control compartment check-off lists for all divisional spaces.
VERIFIED AGAINST THE SOURCE
“Ensure the preparation and maintenance of damage control compartment check-off lists for all divisional spaces.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 10 ↗19What does the DCPO supervise when a material condition is set?
The setting of the specified material conditions in divisional spaces, and the required reports.
VERIFIED AGAINST THE SOURCE
“Supervise the setting of specified damage control material conditions within divisional spaces and make required reports.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 10 ↗20What must the damage control closure log list?
Every fitting that violates the prescribed material condition of readiness.
VERIFIED AGAINST THE SOURCE
“List all fittings that are in violation of the prescribed material condition of readiness.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 8 ↗21How long are closure log sheets kept on file?
Six months.
VERIFIED AGAINST THE SOURCE
“Keep the closure log sheets on file for a period of 6 months.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 8 ↗22What word is passed at 1600 daily about material condition YOKE?
"All divisions check the setting of material condition YOKE. Make reports to damage control central."
VERIFIED AGAINST THE SOURCE
“At 1600 daily, request the OOD have the word passed, “All divisions check the setting of material condition YOKE. Make reports to damage control central.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 9 ↗23Which material condition gives the least protection, and when is it set?
Condition XRAY. It is set when the ship is in no danger of attack, such as at anchor in a well-protected harbor or at home base during working hours.
VERIFIED AGAINST THE SOURCE
“Condition XRAY provides the least amount of protection. It is set when the ship is in no danger of attack. Examples are when the ship is at anchor in a well-protected harbor or when secured at a home base during regular working hours.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 13 ↗24When is material condition YOKE set?
At sea in peacetime and in port in wartime. It is also kept in port in peacetime outside regular working hours.
VERIFIED AGAINST THE SOURCE
“Condition YOKE provides more protection than condition XRAY. It is set and maintained at sea during peacetime and in port during wartime. It is also maintained in port during peacetime outside of regular working hours.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 13 ↗25When is material condition ZEBRA set?
Before leaving or entering port in wartime, and at once, without further orders, when general quarters stations are manned. It is also set to isolate and control fires and flooding when the ship is not at GQ.
VERIFIED AGAINST THE SOURCE
“Condition ZEBRA is set before leaving or entering port during wartime. It is also set immediately, without further orders, when manning general quarters (GQ) stations. Also, condition ZEBRA is set to isolate and control fires and flooding when the ship is not at GQ stations.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 13 ↗26How are XRAY fittings marked, and when are they secured?
With a black X. They are secured during conditions XRAY, YOKE and ZEBRA.
VERIFIED AGAINST THE SOURCE
“ZEBRA. Ship personnel must have special authorization to open these fittings. The black X identifying an XRAY classification should be on the following closures”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 13 ↗27How are YOKE fittings marked, and when are they secured?
With a black Y. They are secured during conditions YOKE and ZEBRA.
VERIFIED AGAINST THE SOURCE
“YOKE fittings are marked with a black Y and are secured during conditions YOKE and ZEBRA.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 14 ↗28How are ZEBRA fittings marked, and when are they secured?
With a red Z. They are secured during condition ZEBRA.
VERIFIED AGAINST THE SOURCE
“ZEBRA fittings are marked with a red Z, and these closures are secured during condition ZEBRA.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 15 ↗29What is different about CIRCLE XRAY and CIRCLE YOKE fittings?
They are secured like XRAY or YOKE fittings, but personnel may open them without special authorization when going to battle stations or for routine inspection checks.
VERIFIED AGAINST THE SOURCE
“CIRCLE YOKE fittings are marked with a black Y inside of a black circle. These modified fittings are secured during conditions YOKE and ZEBRA. However, these fittings may also be opened without special authorization when personnel are proceeding to battle stations or as required in routine inspection checks.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 14 ↗30How are DOG ZEBRA fittings marked, and when are they secured?
With a red Z inside a black D. They are secured during condition ZEBRA and during darken ship.
VERIFIED AGAINST THE SOURCE
“DOG ZEBRA fittings are marked with a red Z inside a black D. These modified fittings are secured during condition ZEBRA and darken ship conditions.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 15 ↗31Who closes DOG ZEBRA fittings when darken ship is ordered?
The divisions responsible for them.
VERIFIED AGAINST THE SOURCE
“DOG ZEBRA fittings are closed by applicable divisions whenever darken ship is ordered.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 1, PDF p. 11 ↗32How are WILLIAM fittings marked, and when are they secured?
With a black W. They stay open under all material conditions and are secured only to control damage or CBR contamination, or to repair the equipment they serve.
VERIFIED AGAINST THE SOURCE
“WILLIAM fittings are marked with a black W. These fittings are kept open during all material conditions. WILLIAM fittings are secured only as necessary to control damage or CBR contamination and to make repairs to the equipment served.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 15 ↗33When must CIRCLE WILLIAM fittings be secured?
To prevent the spread of damage, and as a defense measure when a CBR attack is imminent. Otherwise they are normally kept open.
VERIFIED AGAINST THE SOURCE
“CIRCLE WILLIAM fittings are marked with a black W inside a black circle. These fittings are normally kept open, as is the case with WILLIAM fittings. They must, however, be secured to prevent the spread of damage and as a defense measure when a CBR attack is imminent.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 15 ↗34What is watertight integrity?
Closures or fittings that keep water from getting into certain compartments.
VERIFIED AGAINST THE SOURCE
““Watertight integrity” is defined as closures or fittings that prevent the ingress of water to certain compartments.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 7 ↗35A compartment number identifies four things. What are they?
The deck, the frame, the position relative to the ship's centerline, and the compartment's use.
VERIFIED AGAINST THE SOURCE
“1. The deck upon which the compartment is located. 2. Location of the compartment by frame. 3. The position of the compartment relative to the ship’s centerline. 4. The compartment use.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 4 ↗36In compartment numbering, what numbers go to centerline, starboard and port compartments?
Centerline compartments get 0. Starboard compartments get odd numbers, and port compartments get even numbers.
VERIFIED AGAINST THE SOURCE
“Compartments located on the ship’s centerline carry the number 0. Compartments completely to starboard are given odd numbers, and those to port are given even numbers.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 5 ↗37What does the last part of a compartment number show?
A letter for the compartment's primary use.
VERIFIED AGAINST THE SOURCE
“The last part of the compartment number is the letter that identifies the primary usage of the compartment.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 5 ↗38In compartment letters, what do C and E stand for?
C is a normally manned control center for ship and fire-control operations, such as CIC or the pilot house. E is a normally manned engineering control center, such as main machinery spaces.
VERIFIED AGAINST THE SOURCE
“E Engineering control centers (normally manned) Main machinery spaces; evaporator rooms; steering gear rooms; pump rooms; auxiliary machinery spaces; emergency generator rooms”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 6 ↗39In compartment letters, what do F and K stand for?
F is oil stowage for ship use (fuel, diesel and lube oil). K is chemicals and dangerous materials other than oil and gasoline.
VERIFIED AGAINST THE SOURCE
“K Chemicals and dangerous materials (other than oil and gasoline)”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 6 ↗40In compartment letters, what do L and M stand for?
L is living spaces, such as berthing, messing and heads. M is ammunition spaces, such as magazines and gun mounts.
VERIFIED AGAINST THE SOURCE
“L Living spaces Berthing and messing spaces; staterooms; washrooms; heads; brig; sick bay; and passageways M Ammunition spaces Magazines”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 6 ↗41In compartment letters, what do T and V stand for?
T is vertical access trunks, such as escape trunks. V is voids, such as cofferdams other than gasoline cofferdams.
VERIFIED AGAINST THE SOURCE
“T Vertical access trunks Escape trunks V Voids Cofferdam spaces (other than gasoline)”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 3, PDF p. 6 ↗42What three things does a fire need?
A combustible material, a high enough temperature, and a supply of oxygen.
VERIFIED AGAINST THE SOURCE
“Three components are required for a fire. They are a combustible material, a sufficiently high temperature, and a supply of oxygen.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 1 ↗43In general, how are fires put out?
By removing one side of the fire triangle (fuel, heat or oxygen), or by slowing the rate of combustion.
VERIFIED AGAINST THE SOURCE
“In general, fires may be extinguished by removing one side of the fire triangle (fuel, heat, or oxygen) or by slowing down the rate of combustion.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 4 ↗44What burns in a Class ALPHA (A) fire?
Ordinary combustibles such as wood, cloth, paper and upholstery.
VERIFIED AGAINST THE SOURCE
“Class ALPHA (A) fires are those that occur in such ordinary combustible materials as wood, cloth, paper, upholstery, and similar materials.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 2 ↗45Where does a Class BRAVO (B) fire burn?
In the vapor-air mixture over the surface of flammable liquids such as gasoline, jet fuel, diesel, paints and lubricating oils.
VERIFIED AGAINST THE SOURCE
“Class BRAVO (B) fires are those that occur in the vapor air mixture over the surface of flammable liquids, such as gasoline, jet fuels, diesel oil, fuel oil, paints, thinners, solvents, lubricating oils, and greases.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 2 ↗46What is a Class CHARLIE (C) fire?
A fire in electrical equipment.
VERIFIED AGAINST THE SOURCE
“Class CHARLIE (C) fires are those which occur in electrical equipment.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 2 ↗47What burns in a Class DELTA (D) fire?
Combustible metals such as magnesium, titanium and sodium.
VERIFIED AGAINST THE SOURCE
“Class DELTA (D) fires occur in combustible metals, such as magnesium, titanium, and sodium.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 2 ↗48What is the flash point of a substance?
The lowest temperature at which it gives off vapors that will burn when a flame or spark is applied.
VERIFIED AGAINST THE SOURCE
“The lowest temperature at which a flammable substance gives off vapors that will burn when a flame or spark is applied is known as the FLASH POINT.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 1 ↗49What is the auto-ignition point?
The lowest temperature a substance must reach to give off vapors that burn with no spark or flame.
VERIFIED AGAINST THE SOURCE
“The AUTO-IGNITION or SELF-IGNITION POINT is the lowest temperature to which a substance must be heated to give off vapors that will burn without the application of a spark or flame.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 1 ↗50Name the three ways heat from a fire is transferred.
Conduction (direct contact, molecule to molecule), convection (heated air and gases rising from the fire), and radiation (heat radiated through the air in all directions).
VERIFIED AGAINST THE SOURCE
“In the process known as radiation, heat is radiated through the air in all directions.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 5 ↗51What is the Navy's most important dry chemical agent, and which fire classes is it used on?
Potassium bicarbonate, called Purple-K-Powder (PKP). It is used on Class B and Class C fires.
VERIFIED AGAINST THE SOURCE
“the most important agent of this kind at present is potassium bicarbonate, also known as Purple-K-Powder (PKP). PKP is used to extinguish class B and class C fires”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 4, PDF p. 6 ↗52Where does the firemain get its water?
It is seawater pumped from the sea.
VERIFIED AGAINST THE SOURCE
“The firemain system receives water pumped from the sea.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 1 ↗53How is a horizontal loop firemain built?
Two single fore-and-aft piping runs, cross-connected.
VERIFIED AGAINST THE SOURCE
“The horizontal loop firemain system shown in figure 6-2 consists of two single fore-and-aft, cross-connected piping runs.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 1 ↗54How is a composite firemain built?
Two piping runs on the damage control deck, separated athwartships.
VERIFIED AGAINST THE SOURCE
“A commonly used variation is a composite firemain system that consists of two piping runs installed on the damage control deck and separated athwartships.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 2 ↗55What is AFFF mainly used for aboard ship?
Class BRAVO fires, often together with PKP.
VERIFIED AGAINST THE SOURCE
“AFFF is primarily used aboard ship to fight class BRAVO fires, often in conjunction with Purple-K-Powder (PKP).”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 4 ↗56How does carbon dioxide put out a fire?
It lowers the oxygen concentration in the air to the point where combustion stops.
VERIFIED AGAINST THE SOURCE
“It is used for extinguishing fires because it reduces the concentration of oxygen in the air to the point where combustion stops.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 12 ↗57What kind of spaces are CO2 flooding systems used in?
Spaces that are not normally occupied.
VERIFIED AGAINST THE SOURCE
“The CO2 flooding system is used for spaces that are not normally occupied by personnel.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 12 ↗58What are shipboard sprinkler systems used for?
Emergency cooling of, and firefighting in, magazines, ready-service rooms, and ammunition and missile handling areas.
VERIFIED AGAINST THE SOURCE
“Sprinkler systems are used for emergency cooling of, and fire fighting in, magazines, ready-service rooms, ammunition, and missile handling areas.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 2 ↗59How fast can a magazine sprinkler system flood its space?
Within an hour.
VERIFIED AGAINST THE SOURCE
“Magazine sprinkler systems can completely flood their designated spaces within an hour.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 3 ↗60Where are bilge sprinkling system heads installed?
In the main and auxiliary machinery spaces, below the lower-level deck plates.
VERIFIED AGAINST THE SOURCE
“The bilge sprinkling system is located in the main and auxiliary machinery spaces with the sprinkler heads installed below the lower level deck plates.”
— Damage Controlman, NAVEDTRA 14057 (2001 ed.), ch. 6, PDF p. 11 ↗Know questions we're missing?
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