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IAAI CFI STUDY QUESTIONS AND
ANSWERS
Question 1: What is a combustible liquid?
CORRECT ANSWER: A liquid with a flash point
ABOVE 100F
Question 2: If the current flowing out from an electrical
panel is 12.5 amps, and it then flows through an electrical load of 1500 watts, what is the amperage of the remaining current flow of the return circuit?
CORRECT ANSWER: 12.5
Question 3: If a hair dryer draws 8.3 amps (in a home
with 120-volt service), what is the wattage? *Power (P) = current (I) x voltage (V) Watts = amps x volts
CORRECT ANSWER: 1000
Question 4: What is the year of the first edition of NFPA
1033?
CORRECT ANSWER: 1987
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Question 5: What is the recommended distance for
securing the perimeter of a blast scene? *That is, the distance from the furthest debris
CORRECT ANSWER: 1.5 times
Question 6: What temperature in the upper gas layer
causes the onset of Flashover?
CORRECT ANSWER: 1100°F
Question 7: What is the temperature at which copper
melts?
CORRECT ANSWER: 1960°F
Question 8: What is the measurement of the radiant heat
flux (from gas layer to the floor) that indicates the onset of flashover?
CORRECT ANSW ER: 2 W/cm2
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Question 9: What is the voltage between the two hot
wires at the service entrance cables in most single-family residences in the United States (single-phase service with three wires)?
CORRECT ANSWER: 240 volts
Question 10: What is the revision cycle for NFPA 921
(timespan)?
CORRECT ANSWER: 3 years
Question 11: What is the flash point of power steering
fluid?
CORRECT ANSWER: 350°F
Question 12: In high-pressure fuel-injected vehicles, what
is the typical range of pressure that is used to pump fuel from a fuel tank?
CORRECT ANSWER: 35-70 p.s.i.
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Question 13: What are the lower explosive and upper
explosive limit of natural gas (methane)?
CORRECT ANSWER: 5 and 17
Question 14: What is the ignition temperature of power
steering fluid?
CORRECT ANSWER: 680°F
Question 15: What is fuel?
CORRECT ANSWER: Any substance that can undergo
combustion
Question 16: What are two factors or situations leading to
a fire that may show the nature of the incident responsibility?
CORRECT ANSWER: Act or Omission
Question 17: What concept should not be included in a
summary report of findings?