For fire investigation the points to be considered :
How the fire was discovered
Time at which fire alarm was sounded
The position and nature of fire
All of the above *
Which of the following statements describes the advantage of using a Halon fire extinguisher versus a CO2 fire extinguisher ?
Halon cools rather than smothers a fire
Halon is more effective than CO2 *
Halon can extinguish combustible metal fires
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 :
To improve stability
To improve and contain fire safety *
To reduce the cost of construction
None of the above
When an oil fire has been extinguished the surface of the oil should be kept covered with foam to prevent
Air from contacting the oil vapours permitting re-ignition *
Boiling of the heated oil
Spontaneous combustion below the surface
Toxic fumes from escaping to the surface
In the given below list, which gas has the widest flammable range
Ethylene *
Propane
Butane
Methane
home
The ship is divided into many main vertical and horizontal zones by thermal and structural boundary
To improve stability
To improve and contain fire safety *
To reduce the cost of construction
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
True
False *
Low expansion foam ratio
0.736111111
01:100
01:20
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
Radiation
Conduction
Convection *
Ventilation
If a cream coloured band is located over the fire extinguisher it indicates that the fire extinguisher is which of the following
Water
Dry powder
Foam *
Carbon dioxide
In pump rooms and pipe tunnels flameproof electric light fittings are generally fitted. This means that
The fitting is completely tight and no gas can enter into contact with the bulb and electric connections
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 *
The electric supply will disconnect automatically in case of fire
Even if fire occurs it will not consume the fitting
A serious fire has been isolated in the engine room you would
Wait for it to burn itself out
Open the vents to let the smoke out
Spray cooling water on bulkheads of the adjacent compartments *
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
True
False *
While inhaling if carbon monoxide is present in the air. Co will mix with blood first
True *
False
Emergency escape hatch is used to assess and to escape during fire fighting
True *
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
Melting point
Ignition temperature
Auto-ignition temperature
Flash point *
Principal of fire fighting onboard is
Starving of fire
Cooling
Smoothening of fire
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?
Raise your hand and ask if you may be excused
Evacuate the room immediately *
Try to find extinguisher
All of the above
home
Fire alarm system work on ______-
12 volt DC
24 volt DC *
24 volt AC
220 volt DC
Uptake fire occurs in
Waste heat boiler
Economiser *
Main Engine turbocharger
All of the above
Burn is caused by wet heat
True
False *
Which fire fighting equipment is most efficient and with least side effects in case of a large fire in the engine room
Central foam extinguishing system
Powder extinguishing system
Central gas extinguishing system and/or water fog
Water hyper mist system *
The operating temperature range of green colour coated joint bulbs in sprinkler system is _____ 0 C
63
93Â Â Â Â Â Â Â Â Â Â Â Â Â *
85
78
For which of the listed classes of fire combinations would carbon dioxide be most suitable as the fire extinguishing agent?
Class A and class B
Class b and class C *
Class C and Class A
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
This shall be capable of being closed from control station unless they are normally closed
If normally locked they do not have to be self-closing
They shall be of the self closing type
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
Involve electricity
Involve combustible liquids
Involve common combustible liquids *
All of the above
Flammable materials kept in a store that can cause fire
Paints and varnishes
Cleaning fluids, thinners
Both A and B *
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 _____
The lack of cooling effect on heated materials *
It breaks down under extreme heat to form poisonous gases
It cannot be used in dead ship situation without electrical power available to CO2 pump
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%
Automatically vent into the atmosphere
Re-circulated back in scrubber tank
Both A and B
None of the above            *
Is charcoal the product of dry distillation ?
True *
False
CO2 type fire extinguisher can be used in fighting which kind of fire type?
A and C type
B and C type
A and B type
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 _______
Conduction
Convection *
Radiation
Windage
A fire hose kept in box, should have a wrench and ?
Lock
All purpose nozzle *
Foam Applicator
None of the above
When human body exposed to carbon monoxide, more oxygen goes to blood
True
False *
As per regulation, how many portable fire extinguishers should be there on board
5 *
13
10
8
For B class bulkheads the duration of not exceeding the temperature above 200 degree Celsius in 30 minutes?
True
False *
Which type of portable fire extinguishers are designed for use on electrical fires?
Carbon dioxide and foam(stored pressure)
Foam and soda-acid
Dry chemical and carbon dioxide *
Dry chemical and soda- acid
Fire fighting comprises of what all events onboard?
Find, alarm, isolate and extinguish *
Find, fight and report
Report, fight
Find and report company
During an investigation of the fire, what points will be considered
How fire was discovered
When fire is reported and alarm sounded
Communication between the teams
All of the above *
Reason why Co2Â type fire extinguishers is preferred over other because ?
Cheaper per unit basis
Do less damage than others *
Better at cooling
None of the above
Maximum weight of portable fire extinguisher is
11 Kg
23 Kg *
19 Kg
9 Kg
During fire onboard, the communication is to be ?
Long, detailed and multiple people
Short, detailed and few people
Concise, precise and short *
All people taking together
The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing ____
Vertically downward *
Vertically upward
45 degree above
All of the above
Coal can have the spontaneous ignition?
True *
False
What is the maximum allowable oxygen content within the ship’s cargo tanks, inert gas piping and the vapour recovery system?
Helpful nice and informative.
Only it should be in pdf format where we can copy and remove printout for easy reference.