AFF / RAFF / REFRESHER ADVANCE FIRE FIGHTING EXIT EXAM QUESTIONS AND ANSWERS 3.0

• For fire investigation the points to be considered :

1. How the fire was discovered
2. Time at which fire alarm was sounded
3. The position and nature of fire
4. All of the above                  *

• Which of the following statements describes the advantage of using a Halon fire extinguisher versus a CO₂ fire extinguisher ?

1. Halon cools rather than smothers a fire
2. Halon is more effective than CO₂              *
3. Halon can extinguish combustible metal fires
4. Halon  is not toxic and safe to breathe under  all conditions

• The ship is divided into many main vertical and horizontal zone by thermal and structure boundary :

1. To improve stability
2. To improve and contain fire safety                   *
3. To reduce the cost of construction
4. None of the above

• When an oil fire has been extinguished the surface of the oil should be kept covered with foam to prevent

1. Air from contacting the oil vapours permitting re-ignition             *
2. Boiling of the heated oil
3. Spontaneous combustion below the surface
4. Toxic fumes from escaping to the surface

• In the given below list, which gas has the widest flammable range

1. Ethylene          *
2. Propane
3. Butane
4. Methane

•  The ship is divided into many main vertical and horizontal zones by thermal and structural boundary

1. To improve stability
2. To improve and contain fire safety               *
3. To reduce the cost of construction
4. None of the above

• Non-combustible material is a material which neither burns nor gives off flammable vapours in sufficient quantity for self ignition when heated to approximately 700⁰ C

1. True
2. False             *

• Low expansion foam ratio

1. 0.736111111
2. 01:100
3. 01:20
4. None of the above                  *

• In the event of a fire the doors to a stair tower must be closed to prevent the spread of fire by

1. Radiation
2. Conduction
3. Convection                *
4. Ventilation

• If a cream coloured band is located over the fire extinguisher it indicates that the fire extinguisher is which of the following

1. Water
2. Dry powder
3. Foam                 *
4. Carbon dioxide

• In pump rooms and pipe tunnels flameproof electric light fittings are generally fitted. This means that

1. The fitting is completely tight and no gas can enter into contact with the bulb and electric connections
2. Gas may enter but even if an explosion takes place the fitting is so strong that the explosion will be contained within it and which will not be blown out                  *
3. The electric supply will disconnect automatically in case of fire
4. Even if fire occurs it will not consume the fitting

• A serious fire has been isolated in the engine room you would

1. Wait for it to burn itself out
2. Open the vents to let the smoke out
3. Spray cooling water on bulkheads of the adjacent compartments                  *
4. Enter to extinguish the fire with a water extinguisher

• Each sprinkler head must be capable of delivering water at a rate of 8 litre/m²/minute

1. True
2. False             *

• While inhaling if carbon monoxide is present in the air. Co will mix with blood first

1. True              *
2. False

• Emergency escape hatch is used to assess and to escape during fire fighting

1. True         *
2. False

• What do we call the temperature at which a material produces enough flammable vapour for it to flash if exposed to an ignition source

1. Melting point
2. Ignition temperature
3. Auto-ignition temperature
4. Flash point             *

• Principal of fire fighting onboard is

1. Starving of fire
2. Cooling
3. Smoothening of fire
4. All of the above              *

• What is the first thing you should do in the case of a fire if you cannot reach a fire extinguisher?

1. Raise your hand and ask if you may be excused
2. Evacuate the room immediately                *
3. Try to find extinguisher
4. All of the above

• Fire alarm system work on ______-

1. 12 volt DC
2. 24 volt DC            *
3. 24 volt AC
4. 220 volt DC

• Uptake fire occurs in

1. Waste heat boiler
2. Economiser                 *
3. Main Engine turbocharger
4. All of the above

• Burn is caused by wet heat

1. True
2. False      *

• Which fire fighting equipment is most efficient and with least side effects in case of a large fire in the engine room

1. Central foam extinguishing system
2. Powder extinguishing system
3. Central gas extinguishing system and/or water fog
4. Water hyper mist system                        *

• The operating temperature range of green colour coated joint bulbs in sprinkler system is _____ ⁰ C

1. 63
2. 93              *
3. 85
4. 78

1. For which of the listed classes of fire combinations would carbon dioxide be most suitable as the fire extinguishing agent?

1. Class A and class B
2. Class b and class C             *
3. Class C and Class A
4. Class C, Class D and Class E

• Which of the following statements does not apply to fire doors in main vertical zone bulkheads and stairway enclosures in passenger ships

1. This shall be capable of being closed from control station unless they are normally closed
2. If normally locked they do not have to be self-closing
3. They shall be of the self closing type
4. They can have hold back hooks not subject to control station release providing the emergency plan details a person to close them                  *

• Class A fire involves

1. Involve electricity
2. Involve combustible liquids
3. Involve common combustible liquids                *
4. All of the above

• Flammable materials kept in a store that can cause fire

1. Paints and varnishes
2. Cleaning fluids, thinners
3. Both A and B               *
4. None of the above

• There are two disadvantages to CO₂ when used as a total flooding fire fighting agent. One of them is extinguishing concentrations will not support human life and _____

1. The lack of cooling effect on heated materials              *
2. It breaks down under extreme heat to form poisonous gases
3. It cannot be used in dead ship situation without electrical power available to CO₂ pump
4. There is no effect on a class A fire even in an enclosed space

• If the O₂ content after inert plant is more than 5%

1. Automatically vent into the atmosphere
2. Re-circulated back in scrubber tank
3. Both A and B
4. None of the above             *

• Is charcoal the product of dry distillation ?

1. True                   *
2. False

• CO₂ type fire extinguisher can be used in fighting which kind of fire type?

1. A and C type
2. B and C type
3. A and B type
4. C, D and E type                 *

• The spreading of fire s a result of heating being carried through a vessel’s ventilation system, is an example of heat transfer by _______

1. Conduction
2. Convection                    *
3. Radiation
4. Windage

• A fire hose kept in box, should have a wrench and ?

1. Lock
2. All purpose nozzle               *
3. Foam Applicator
4. None of the above

• When human body exposed to carbon monoxide, more oxygen goes to blood

1. True
2. False              *

• As per regulation, how many portable fire extinguishers should be there on board

1. 5               *
2. 13
3. 10
4. 8

• For B class bulkheads the duration of not exceeding the temperature above 200 degree Celsius  in 30 minutes?

1. True
2. False             *

• Which type of portable fire extinguishers are designed for use on electrical fires?

1. Carbon dioxide and foam(stored pressure)
2. Foam and soda-acid
3. Dry chemical and carbon dioxide             *
4. Dry chemical and soda- acid

• Fire fighting comprises of what all events onboard?

1. Find, alarm, isolate and extinguish              *
2. Find, fight and report
3. Report, fight
4. Find and report company

• During an investigation of the fire, what points will be considered

1. How fire was discovered
2. When fire is reported and alarm sounded
3. Communication between the teams
4. All of the above            *

• Reason why Co₂  type fire extinguishers is preferred over other because ?

1. Cheaper per unit basis
2. Do less damage than others             *
3. Better at cooling
4. None of the above

• Maximum weight of portable fire extinguisher is

1. 11 Kg
2. 23 Kg                *
3. 19 Kg
4. 9 Kg

• During fire onboard, the communication is to be ?

1. Long, detailed and multiple people
2. Short, detailed and few people
3. Concise, precise and short           *
4. All people taking together

• The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing ____

1. Vertically downward            *
2. Vertically upward
3. 45 degree above
4. All of the above

• Coal can have the spontaneous ignition?

1. True                *
2. False

• What is the maximum allowable oxygen content within the ship’s cargo tanks, inert gas piping and the vapour recovery system?

1. 4%
2. 5%
3. 8%            *
4. 10%

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