DG EXIT EXAM ON AFF/ RAFF / REFRESHER ADVANCE FIRE FIGHTING.
- If a portable carbon dioxide fire extinguisher has been partially discharged, it should be immediately
- Tagged and restowed it properly in its rack
- Weighed the charge loss recorded before being returned to its rack
- Given to the chief engineer for charging
- Tagging ‘empty’ and stowed separately from charged extinguishers *
- If heavy smoke is coming from the paint locker, the first fire fighting response should be to _______
- Release the CO2 flooding system
- Open the door to evaluate the extent of the fire
- Enter and use portable extinguisher
- Secure the ventilation *
- A 1200 litres SCABA bottle duration is ____
- 25 minutes
- 20 minutes
- 30 minutes *
- 45 minutes
- What is the best fire fighting medium on a gas tanker ?
- Water
- Foam
- DCP *
- Carbon dioxide
- The main advantage of steady steam water on a class A fire is that it ______
- Removes the oxygen
- Washes the fire away
- Protect the fire fighting crew
- Break up and cools the fire *
- The capacity of a fire pump on a cargo ship should not be more than 180 metre cube per hour
- True *
- False
- As per regulations, the minimum length of a life line should be _______
- 30 meters *
- 20 meters
- 15 meters
- None of the above
- In a container ship if the cargo hold is designed to carry dangerous goods, it should have ______ fire fighting system.
- Sprinkler system
- Sprinkler and CO2 system *
- CO2
- None of the above
- If you are on watch at night in port and discover a fire in #1 hatch, what should be your first action ?
- Inform the chief mate and master
- Sound the general alarm *
- Release carbon dioxide into the hatch
- Lead a fire hose to the hatch
- Fire fighting with foam is only effective when the foam ____
- Penetrates to the bottom of the fire
- Mixes with the burning fuel oil
- Is kept saturated with low velocity water fog
- Completely covers the top of the burning liquid *
- Hydrostatic test of CO2 lines is carried out every 10 years
- True *
- False
- Fire in an engine compartment is best extinguished with carbon dioxide gas and by ______
- Completely closing the compartment *
- Closing the compartment except for the ventilators
- Leaving the compartment open to the air
- Increasing the air flow to the compartment by blowers
- Which type of fire extinguisher is hard to recharge on board ?
- DCP
- Foam
- CO2 *
- Water type
- Before initiating the engine room fixed CO2 system to extinguish a major uncontrolled fire, what will be the first step towards it?
- Stop the main engine
- Evacuate all engine room personnel *
- Start the emergency diesel generator
- Turn off electrical power
- Which toxic gas is a product of incomplete combustion and is often present when a fire burns in a closed compartment ?
- Hydrogen sulphide
- Carbon monoxide *
- Carbon dioxide
- Nitric oxide
- A hand portable CO2 fire extinguisher is effectively in burning oil only ______
- If applied promptly *
- If applied in connection with foam
- To prevent rekindling
- If attempt to extinguish the fire with low velocity fog has failed
- In cargo ships the diameter of fire main need to be sufficient for the discharge of _____ with two pumps simultaneously delivering through nozzles
- 135 meter cube per hour
- 145 meter cube per hour
- 14 meter cube per hour
- 140 meter cube per hour *
- Foam extinguisher are checked by authorized shore persons every 5 years
- True
- False *
- Spontaneous combustion is caused by ______
- An outside heat source heating a substance until it ignites
- Conduction of heat through a wall of material to the substance
- Chemical action with the substance *
- All of the above
- The maximum distance between centre to centre of heat detectors is 10 metre
- True
- False *
- Which is the following is specially dedicated to receive shore supplied water ?
- Isolating wave
- International shore connection *
- Fire main line
- None of the above
- The longer an oil fire is permitted to burn, the ______
- Harder is to extinguish *
- Easier is to extinguish
- Less chance there is of re-ignition
- Easier it is to control
- Which of the following is not required to be part of vessel’s fire control plan?
- Ventilation fan location
- Ventilation fan capacity *
- Ventilation fan control
- Ventilation dampers
- Sprinkler mainline is connected to the main sea water line
- True *
- False
- 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 _____
- Hazardous chemical information sheet
- Material safety data sheet *
- Hazardous chemical loading document
- Physical or chemical characteristics document
- What is the primary hazard other than fire damage associated with a class C fire?
- Flash over
- Possibility of re-flash
- Electrocution or shock *
- Explosion