47. In the fire tetrahedron, how many components
are necessary for combustion?
1. One
2. Two
3. Three
4. Four
48. Flammable materials give off vapors. What is
the lowest temperature that these vapors burn
when a spark is applied?
1. Ambient temperature
2. Room temperature
3. Flash point
4. Ignition point
49. What term is used to describe the lowest
temperature at which spontaneous combustion
occurs?
1. Flash point
2. Ignition point
3. Ambient temperature
4. Room temperature
50. Heat from fire can be transferred by how many
methods?
1. One
2. Two
3. Three
4. Four
51. What method of heat transfer occurs when
heat moves from one body to another by direct
contact?
1. Conduction
2. Convection
3. Radiation
4. Reflection
52. What method of heat transfer occurs through
the motion of smoke, hot air, and heated
gases?
1. Conduction
2. Convection
3. Radiation
4. Reflection
53. What type of heat transfer occurs when heat
moves in all direction unless blocked?
1. Conduction
2. Convection
3. Radiation
4. Reflection
54. Which of the following agents should be used
to extinguish a class B fire?
1. Water
2. AFFF
3. PKP
4. Both 2 and 3 above
55. Which of the following agents should be used
to extinguish class A or D fires?
1. Water
2. AFFF
3. PKP
4. Both 2 and 3 above
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