STCW Basic Training Exam Questions
With Complete Solutions
Ship Fire Prevention - Answer-Ship design and construction
-steel/fire retardant materials
-subdivisions
-fire protection systems
Good housekeeping practices important
/.Number 1 cause of fire - Answer-CARELESS SMOKING HABITS!!!
- DISPOSAL
- SMOKING IN BED
- DISREGARD FOR RESTRICTED AREAS
• POOR HOUSEKEEPING
- Dirty/oily machinery
- Clothes drier lint accumulation
- Improper, non-secured storage
/.Examples of poor housekeeping practices - Answer--Complacency about fire safety on
the job
-careless disposal of smoking materials
-defective electrical components
-spillage of flammable materials
-careless work habits
/.Fire Triangle - Answer-fuel, oxygen, heat
All of these components are necessary for a fire to occur The removal of any one
component will cause the fire to be extinguished
/.Fire Tetrahedron - Answer-Heat, Fuel, Oxygen, Chemical Chain Reaction
All of these components are necessary for a fire to occur The removal of any one
component will cause the fire to be extinguished
/.Heat - Answer-Anything that produces the required temperature for ignition will satisfy
this leg of the triangle
- Sun
- Open Flame
- Chemical Reaction
- Sparks
- Friction
, - Static Electricity
- Biological Processes
/.Oxygen - Answer-The Earth's atmosphere consists of 21% oxygen
Because fire needs oxygen to burn, the amount of oxygen available to it controls the
rate at which it burns
/.Fuel - Answer-Only vapors burn
• Liquids & solids are too dense and must first be vaporized
• The tendency of a substance to vaporize is an indication of its ability to burn.
• Liquids vaporize more readily than solids
• Gases are already in a vapor state
/.Chain Reaction - Answer-You can have Oxygen - Heat - Fuel in the same place at the
same time and still not have a fire (explain)
• FUEL - OXYGEN relationship must be balanced, i.e., must be in the Flammable
Range
• Heat must be sufficient to bring fuel to its "Ignition Temperature"
/.To Stop a Fire - Answer-• remove the fuel
• remove the heat
• remove the oxygen
• interrupt chemical reaction
OR • do any combination of above
/.Classifications of Fires - Answer-Five classes of fire:
1. Class A - combustible solids (wood paper, rubber)
2. Class B - combustible and flammable liquids and gases (oil, gasoline)
3. Class C - energized electrical equipment (electrical equipment, wiring, appliances)
4. Class D - combustible metals (sodium, zinc, manganese)
5. Class K - cooking material (animal/vegetable fats)
/.Flash point - Answer-FLASH POINT (of a Liquid)
- The lowest temperature at which a liquid gives off sufficient vapor to form an ignitable
mixture at the surface of the liquid
- Fire flashes across the surface given sufficient oxygen and an external source of
ignition
- Lowest temperature at which we can have a fire
- Indicator of the severity of a fire hazard
/.Fire Point - Answer-Just above the flash point - liquid vaporizes rapidly enough to
sustain continuous combustion
/.Ignition Temperature - Answer-- Lowest temperature of a combustible substance at
which sustained combustion will occur without a spark or flame
- Substance starts to burn
With Complete Solutions
Ship Fire Prevention - Answer-Ship design and construction
-steel/fire retardant materials
-subdivisions
-fire protection systems
Good housekeeping practices important
/.Number 1 cause of fire - Answer-CARELESS SMOKING HABITS!!!
- DISPOSAL
- SMOKING IN BED
- DISREGARD FOR RESTRICTED AREAS
• POOR HOUSEKEEPING
- Dirty/oily machinery
- Clothes drier lint accumulation
- Improper, non-secured storage
/.Examples of poor housekeeping practices - Answer--Complacency about fire safety on
the job
-careless disposal of smoking materials
-defective electrical components
-spillage of flammable materials
-careless work habits
/.Fire Triangle - Answer-fuel, oxygen, heat
All of these components are necessary for a fire to occur The removal of any one
component will cause the fire to be extinguished
/.Fire Tetrahedron - Answer-Heat, Fuel, Oxygen, Chemical Chain Reaction
All of these components are necessary for a fire to occur The removal of any one
component will cause the fire to be extinguished
/.Heat - Answer-Anything that produces the required temperature for ignition will satisfy
this leg of the triangle
- Sun
- Open Flame
- Chemical Reaction
- Sparks
- Friction
, - Static Electricity
- Biological Processes
/.Oxygen - Answer-The Earth's atmosphere consists of 21% oxygen
Because fire needs oxygen to burn, the amount of oxygen available to it controls the
rate at which it burns
/.Fuel - Answer-Only vapors burn
• Liquids & solids are too dense and must first be vaporized
• The tendency of a substance to vaporize is an indication of its ability to burn.
• Liquids vaporize more readily than solids
• Gases are already in a vapor state
/.Chain Reaction - Answer-You can have Oxygen - Heat - Fuel in the same place at the
same time and still not have a fire (explain)
• FUEL - OXYGEN relationship must be balanced, i.e., must be in the Flammable
Range
• Heat must be sufficient to bring fuel to its "Ignition Temperature"
/.To Stop a Fire - Answer-• remove the fuel
• remove the heat
• remove the oxygen
• interrupt chemical reaction
OR • do any combination of above
/.Classifications of Fires - Answer-Five classes of fire:
1. Class A - combustible solids (wood paper, rubber)
2. Class B - combustible and flammable liquids and gases (oil, gasoline)
3. Class C - energized electrical equipment (electrical equipment, wiring, appliances)
4. Class D - combustible metals (sodium, zinc, manganese)
5. Class K - cooking material (animal/vegetable fats)
/.Flash point - Answer-FLASH POINT (of a Liquid)
- The lowest temperature at which a liquid gives off sufficient vapor to form an ignitable
mixture at the surface of the liquid
- Fire flashes across the surface given sufficient oxygen and an external source of
ignition
- Lowest temperature at which we can have a fire
- Indicator of the severity of a fire hazard
/.Fire Point - Answer-Just above the flash point - liquid vaporizes rapidly enough to
sustain continuous combustion
/.Ignition Temperature - Answer-- Lowest temperature of a combustible substance at
which sustained combustion will occur without a spark or flame
- Substance starts to burn
