RAFF exit exam questions and answers

1. For fire investigation the points to be considered :

• A. How the fire was discovered
• B. Time at which fire alarm was sounded
• C. The position and nature of fire
• D. All of the above

2. Which of the following statements describes the advantage of using a Halon fire extinguisher versus a CO fire extinguisher ?

• A. Halon cools rather than smothers a fire
• B. Halon is more effective than CO2
• C. Halon can extinguish combustible metal fires
• D. Halon is not toxic and safe to breathe under all conditions

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

• A. To improve stability
• B. To improve and contain fire safety
• C. To reduce the cost of construction
• D. None of the above

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

• A. Air from contacting the oil vapours permitting re-ignition
• B. Boiling of the heated oil
• C. Spontaneous combustion below the surface
• D. Toxic fumes from escaping to the surface

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

• A. Ethylene
• B. Propane
• C. Butane
• D. Methane

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

• A. To improve stability
• B. To improve and contain fire safety
• C. To reduce the cost of construction
• D. None of the above

7. Low expansion foam ratio

• A. 0.736111111
• B. 01:100
• C. 01:20
• D. None of the above

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

• A. Radiation
• B. Conduction
• C. Convection
• D. Ventilation

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

• A. Water
• B. Dry powder
• C. Foam
• D. Carbon dioxide

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

• A. The fitting is completely tight and no gas can enter into contact with the bulb and electric connections
• B. 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
• C. The electric supply will disconnect automatically in case of fire
• D. Even if fire occurs it will not consume the fitting

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

• A. Wait for it to burn itself out
• B. Open the vents to let the smoke out
• C. Spray cooling water on bulkheads of the adjacent compartments
• D. Enter to extinguish the fire with a water extinguisher

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

• A. Melting point
• B. Ignition temperature
• C. Auto-ignition temperature
• D. Flash point

13. Principal of fire fighting onboard is

• A. Starving of fire
• B. Cooling
• C. Smoothening of fire
• D. All of the above

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

• A. Raise your hand and ask if you may be excused
• B. Evacuate the room immediately
• C. Try to find extinguisher
• D. All of the above

15. Fire alarm system work on ______-

• A. 12 volt DC
• B. 24 volt DC
• C. 24 volt AC
• D. 220 volt DC

16. Uptake fire occurs in

• A. Waste heat boiler
• B. Economiser
• C. Main Engine turbocharger
• D. All of the above

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

• A. Central foam extinguishing system
• B. Powder extinguishing system
• C. Central gas extinguishing system and/or water fog
• D. Water hyper mist system

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

• A. 63
• B. 93
• C. 85
• D. 78

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

• A. Class A and class B
• B. Class b and class C
• C. Class C and Class A
• D. Class C, Class D and Class E

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

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

21. Class A fire involves

• A. Involve electricity
• B. Involve combustible liquids
• C. Involve common combustible liquids
• D. All of the above

22. Flammable materials kept in a store that can cause fire

• A. Paints and varnishes
• B. Cleaning fluids, thinners
• C. Both A and B
• D. None of the above

23. 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 _____

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

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

• A. Automatically vent into the atmosphere
• B. Re-circulated back in scrubber tank
• C. Both A and B
• D. None of the above

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

• A. A and C type
• B. B and C type
• C. A and B type
• D. C, D and E type

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

• A. Conduction
• B. Convection
• C. Radiation
• D. Windage

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

• A. Lock
• B. All purpose nozzle
• C. Foam Applicator
• D. None of the above

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

• A. 5
• B. 13
• C. 10
• D. 8

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

• A. Carbon dioxide and foam(stored pressure)
• B. Foam and soda-acid
• C. Dry chemical and carbon dioxide
• D. Dry chemical and soda- acid

30. Fire fighting comprises of what all events onboard?

• A. Find, alarm, isolate and extinguish
• B. Find, fight and report
• C. Report, fight
• D. Find and report company

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

• A. How fire was discovered
• B. When fire is reported and alarm sounded
• C. Communication between the teams
• D. All of the above

2. Reason why CO2 type fire extinguishers is preferred over other because ?

• A. Cheaper per unit basis
• B. Do less damage than others
• C. Better at cooling
• D. None of the above

3. Maximum weight of portable fire extinguisher is

• A. 11 Kg
• B. 23 Kg
• C. 19 Kg
• D. 9 Kg

4. During fire onboard, the communication is to be ?

• A. Long, detailed and multiple people
• B. Short, detailed and few people
• C. Concise, precise and short
• D. All people taking together

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

• A. Vertically downward
• B. Vertically upward
• C. 45 degree above
• D. All of the above

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

• A. 4%
• B. 5%
• C. 8%
• D. 10%

7. If a portable carbon dioxide fire extinguisher has been partially discharged, it should be immediately

• A. Tagged and restowed it properly in its rack
• B. Weighed the charge loss recorded before being returned to its rack
• C. Given to the chief engineer for charging
• D. Tagging ‘empty’ and stowed separately from charged extinguishers

8. If heavy smoke is coming from the paint locker, the first fire fighting response should be to _______

• A. Release the CO2 flooding system
• B. Open the door to evaluate the extent of the fire
• C. Enter and use portable extinguisher
• D. Secure the ventilation

9. A 1200 litres SCABA bottle duration is ____

• A. 25 minutes
• B. 20 minutes
• C. 30 minutes
• D. 45 minutes

10. What is the best fire fighting medium on a gas tanker ?

• A. Water
• B. Foam
• C. DCP
• D. Carbon dioxide

11. The main advantage of steady steam water on a class A fire is that it ______

• A. Removes the oxygen
• B. Washes the fire away
• C. Protect the fire fighting crew
• D. Break up and cools the fire

12. As per regulations, the minimum length of a life line should be _______

• A. 30 meters
• B. 20 meters
• C. 15 meters
• D. None of the above

13. In a container ship if the cargo hold is designed to carry dangerous goods, it should have ______ fire fighting system.

• A. Sprinkler system
• B. Sprinkler and CO2 system
• C. CO2
• D. None of the above

14. If you are on watch at night in port and discover a fire in #1 hatch, what should be your first action ?

• A. Inform the chief mate and master
• B. Sound the general alarm
• C. Release carbon dioxide into the hatch
• D. Lead a fire hose to the hatch

15. Fire fighting with foam is only effective when the foam ____

• A. Penetrates to the bottom of the fire
• B. Mixes with the burning fuel oil
• C. Is kept saturated with low velocity water fog
• D. Completely covers the top of the burning liquid

16. Fire in an engine compartment is best extinguished with carbon dioxide gas and by ______

• A. Completely closing the compartment
• B. Closing the compartment except for the ventilators
• C. Leaving the compartment open to the air
• D. Increasing the air flow to the compartment by blowers

17. Which type of fire extinguisher is hard to recharge on board ?

• A. DCP
• B. Foam
• C. CO2
• D. Water type

18. Before initiating the engine room fixed CO2 system to extinguish a major uncontrolled fire, what will be the first step towards it?

• A. Stop the main engine
• B. Evacuate all engine room personnel
• C. Start the emergency diesel generator
• D. Turn off electrical power

19. Which toxic gas is a product of incomplete combustion and is often present when a fire burns in a closed compartment ?

• A. Hydrogen sulphide
• B. Carbon monoxide
• C. Carbon dioxide
• D. Nitric oxide

20. A hand portable CO2 fire extinguisher is effectively in burning oil only ______

• A. If applied promptly
• B. If applied in connection with foam
• C. To prevent rekindling
• D. If attempt to extinguish the fire with low velocity fog has failed

21. In cargo ships the diameter of fire main need to be sufficient for the discharge of _____ with two pumps simultaneously delivering through nozzles

• A. 135 meter cube per hour
• B. 145 meter cube per hour
• C. 14 meter cube per hour
• D. 140 meter cube per hour

22. Spontaneous combustion is caused by ______

• A. An outside heat source heating a substance until it ignites
• B. Conduction of heat through a wall of material to the substance
• C. Chemical action with the substance
• D. All of the above

23. Which is the following is specially dedicated to receive shore supplied water ?

• A. Isolating wave
• B. International shore connection
• C. Fire main line
• D. None of the above

24. The longer an oil fire is permitted to burn, the ______

• A. Harder is to extinguish
• B. Easier is to extinguish
• C. Less chance there is of re-ignition
• D. Easier it is to control

25. Which of the following is not required to be part of vessel’s fire control plan?

• A. Ventilation fan location
• B. Ventilation fan capacity
• C. Ventilation fan control
• D. Ventilation dampers

26. A specific document which identifies a chemical, and a list its physical properties, health hazards, required controls, fire fighting procedures, cleanup methods, waste disposal and the safe handling is commonly called as _____

• A. Hazardous chemical information sheet
• B. Material safety data sheet
• C. Hazardous chemical loading document
• D. Physical or chemical characteristics document

27. What is the primary hazard other than fire damage associated with a class C fire?

• A. Flash over
• B. Possibility of re-flash
• C. Electrocution or shock
• D. Explosion

28. What is the minimum number of portable fire extinguishers that must be carried on ships of 100 GRT and above ?

• A. 3
• B. 5
• C. 9
• D. 7

29. In a mixture of flammable vapour and air if there is too mush vapour and not enough air to support combustion, we say the mixture is

• A. Too rich
• B. Over concentrated
• C. Too lean
• D. Saturated

30. What action should be taken first when discovering a fire on board ?

• A. Look for the nearest fire extinguisher
• B. Go to your cabin and gather your belonging
• C. Activate a fire alarm
• D. Go to your emergency much station

1. What class of fire is a smoldering fire of wood, textiles, paper and other carbonaceous ?

• A. Class A
• B. Class B
• C. Class C
• D. Class D

2. If you were put in charge of afire team what is the minimum number of men wearing BA sets that you would allow to enter a smoke filled compartment?

• A. 2 men
• B. 1 man
• C. 3 men
• D. 4 men

3. For fire to occur, the three elements found in the ‘Fire Triangle’ mush be present.these are heat, air and _______

• A. Electricity
• B. Spark
• C. Flame
• D. Fuel

4. Which of these fire extinguishing media is preferred to fight a fire in an electrical installation (eg. The main switchboard) ?

• A. Powder
• B. Water fog
• C. Foam
• D. Sprinkler

5. You are carrying out a search in a smoke filled compartment wearing BA. At what stage should you start to make your way out of the compartment

• A. Wait until the BA set warning whistle sound
• B. 15 minutes after starting to use the set as this leaves you with five minutes air left
• C. Regularly check your pressure gauge and note how much air you used to reach your work area. Start to return when you have this amount left plus a reasonable reserve
• D. None of the above

6. Why should a CO2 extinguisher be used with caution in confined areas?

• A. It will increase the oxygen present in the confined area to a dangerous level
• B. It may explode when exposed to heat
• C. It will displace the air and reduce the amount of oxygen available
• D. It will not operate effectively in confined areas

7. On fires involving burning liquids, which of these extinguisher is considered most effective ?

• A. Foam
• B. Dry powder
• C. Water
• D. CO2

8. On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take ?

• A. Activate the nearest fire alarm button and advise bridge of the location of the fire
• B. As most people are sleeping, call a friend and ask him to assist in putting out the fire
• C. Get the nearest fire extinguisher and then open the door to see what the situation is
• D. Take a look inside the cabin to see what the situation is

9. Onboard fire is done by

• A. Cooling
• B. Smothering (cut off oxygen)
• C. Starvation (remove burning material like fuel)
• D. All of the above

10. To fight a class ‘C’ fire (electrical fire) you should use carbon dioxide or

• A. Chemical foam
• B. Mechanical foam
• C. Dry chemical
• D. Chemically treated saw dust

11. When using a CO2 type fire extinguish what is the way to use it ?

• A. Direct on a bulkhead behind the fire and let it flow down
• B. Aim low, pointing the nozzle or hose at the base of the fire and sweep from side to side
• C. Use it by holding the horn
• D. Direct at high flames and then low flames

12. When fire fighting in confined space, which fire extinguishers you should not use ?

• A. CO2
• B. Foam
• C. Water
• D. DCP

13. What is automated release unit (DRU)

• A. An electromagnetic device which keep the door open until no fire is there
• B. Automatic release unit for rescue boat
• C. Automatic unit of lifeboat
• D. None of the above

14. Proper use of fire extinguisher ?

• A. Pull, aim , shut, sit
• B. Pass, aim, shut, sit
• C. Pass, sure, spees
• D. Pass, aim, squeeze, sweep

15. When fighting galley fire caused by the cooking oil, while extinguisher you should not use?

• A. Water Type
• B. DCP Type
• C. Foam Type
• D. Water and DCP both

16. Why is carbon dioxide better than dry chemical for fire fighting a class ‘C’ (electrical fire)?

• A. The dry chemical is a conductor
• B. Dry chemical leaves residue
• C. CO2 will not dissipate in the air
• D. It take small amount of CO2 to cover the same area

17. Inert gas system shall be capable of maintaining oxygen level in cargo tanks to below

• A. 5% by volume
• B. 7% by volume
• C. 8% by volume
• D. 10% by volume

18. Along with fixed fire fighting system on tanker vessel ? What else is special to them ?

• A. Life boat provided with sprinkler system
• B. Sprinkler system in accommodation
• C. Extra rescue boat
• D. Automatic release of CO2

19. Sliding type water tight door below the water line should be able close manually in how many seconds ?

• A. 10 seconds
• B. 30 seconds
• C. 15-40 seconds
• D. 60-90 seconds

20. Minimum time duration self contained breathing apparatus available should last ?

• A. 10 minute
• B. 20 minute
• C. 30 minute
• D. 40 minute

21. What quantity of reserve fuel is to be available for diesel driven fire pumps outside of the main machinery space ?

• A. 20 litres
• B. 40 litres
• C. Sufficient amount for 6 hours operation at full capacity
• D. Sufficient amount for 15 hours operation at full capacity

22. When using foam type of fire extinguisher on the fire in the engine room, best way is ?

• A. Direct the foam on the bulkhead behind the fire and let it slowly spread over fire
• B. Spread the foam from side of the fire to the inside way
• C. Direct aim at the fire and do the sweep action
• D. Spray in the high flames first

23. An initial attempt to extinguish a galley grease fire may be made by using ?

• A. Water
• B. A mechanical foam system
• C. The range hood extinguishing system
• D. Fire dampers only

24. Class D fire involves

• A. Fire involving metal
• B. Fire involving liquids
• C. Fire involving gas/electrical
• D. Fire involving solid materials