Firefighting exam questions and
answers[ STCW] EXAM
What are the 3 kinds of fire detection systems? - CORRECT ANSWER-1. Detectors
2. Receivers
3 Indicators
Detectors talk to receivers, which talks to indicators.
Receivers and indicators are not typically found in homes.
What are 3 kinds of fire detectors? - CORRECT ANSWER-1. Smoke
2. Heat
3. Flame
What are 3 types of smoke detectors? - CORRECT ANSWER-1. Protoelectric Cell -
Particles of smoke break a beam of light
2. Ionization Chamber - Radioactive isotope reacts with smoke particles
3. Combination - photoelectric cell/ionization chamber
What are the 2 kinds of heat detectors? - CORRECT ANSWER-1. Fixed temperature:
Temperature is at a predetermined level.
- These are usually found in coolers or engine rooms where the temperature stays the
same
2. Rate-of-Rise: measures a rapid increase in temperature
How does a flame detector work? - CORRECT ANSWER-By detecting the flames UV
light
What are 8 kinds of fire extinguishing agents? - CORRECT ANSWER-1. Water
2. Steam
3. Foam
4. CO2
5. Dry Chemical
6. Dry Powder
7. Halon
, 8. Wet chemical
What are the two kinds of dry chemicals? - CORRECT ANSWER-Ordinary: Used to put
out class B and C fires
Multi-purpose: Used to put out A, B, and C fires
What is a class A fire? What extinguishing agents put out a class A fire? - CORRECT
ANSWER-Common Combustibles (wood, paper, trash, cloth)
Extinguishing Agents:
1. Water
2. Dry Chemical ABC
3. Wet Chemical
4. Steam
What is a class B fire? What extinguishing agents are used to put out Class B fires? -
CORRECT ANSWER-Combustible liquids, gasses or petroleum grease. (Gasoline,
diesel fuel)
1. Foam
2. CO2
3. Dry Chemical ABC
4. Dry Chemical BC
5. Halon or Halon Alternatives
6. Steam
What is a class C fire? What extinguishing agents are used to put out Class C fires? -
CORRECT ANSWER-energized electrical equipment
1. CO2
2. Dry Chemical BC
3. Dry Chemical ABC
4. Halon or Halon Alternatives
What is a class D fire? What extinguishing agents are used to put out Class D fires? -
CORRECT ANSWER-combustible metals (lithium, magnesium, potassium, and sodium)
1. Dry Power
What is a class K fire? What extinguishing agents are used to put out Class K fires? -
CORRECT ANSWER-Kitchen fires (animal and vegetable oils found in the galley)
1. Wet Chemical
What are the 4 extinguishing methods? - CORRECT ANSWER-1. Cooling
answers[ STCW] EXAM
What are the 3 kinds of fire detection systems? - CORRECT ANSWER-1. Detectors
2. Receivers
3 Indicators
Detectors talk to receivers, which talks to indicators.
Receivers and indicators are not typically found in homes.
What are 3 kinds of fire detectors? - CORRECT ANSWER-1. Smoke
2. Heat
3. Flame
What are 3 types of smoke detectors? - CORRECT ANSWER-1. Protoelectric Cell -
Particles of smoke break a beam of light
2. Ionization Chamber - Radioactive isotope reacts with smoke particles
3. Combination - photoelectric cell/ionization chamber
What are the 2 kinds of heat detectors? - CORRECT ANSWER-1. Fixed temperature:
Temperature is at a predetermined level.
- These are usually found in coolers or engine rooms where the temperature stays the
same
2. Rate-of-Rise: measures a rapid increase in temperature
How does a flame detector work? - CORRECT ANSWER-By detecting the flames UV
light
What are 8 kinds of fire extinguishing agents? - CORRECT ANSWER-1. Water
2. Steam
3. Foam
4. CO2
5. Dry Chemical
6. Dry Powder
7. Halon
, 8. Wet chemical
What are the two kinds of dry chemicals? - CORRECT ANSWER-Ordinary: Used to put
out class B and C fires
Multi-purpose: Used to put out A, B, and C fires
What is a class A fire? What extinguishing agents put out a class A fire? - CORRECT
ANSWER-Common Combustibles (wood, paper, trash, cloth)
Extinguishing Agents:
1. Water
2. Dry Chemical ABC
3. Wet Chemical
4. Steam
What is a class B fire? What extinguishing agents are used to put out Class B fires? -
CORRECT ANSWER-Combustible liquids, gasses or petroleum grease. (Gasoline,
diesel fuel)
1. Foam
2. CO2
3. Dry Chemical ABC
4. Dry Chemical BC
5. Halon or Halon Alternatives
6. Steam
What is a class C fire? What extinguishing agents are used to put out Class C fires? -
CORRECT ANSWER-energized electrical equipment
1. CO2
2. Dry Chemical BC
3. Dry Chemical ABC
4. Halon or Halon Alternatives
What is a class D fire? What extinguishing agents are used to put out Class D fires? -
CORRECT ANSWER-combustible metals (lithium, magnesium, potassium, and sodium)
1. Dry Power
What is a class K fire? What extinguishing agents are used to put out Class K fires? -
CORRECT ANSWER-Kitchen fires (animal and vegetable oils found in the galley)
1. Wet Chemical
What are the 4 extinguishing methods? - CORRECT ANSWER-1. Cooling
