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What is the flashpoint of an NFPA Class IIIA combustible liquid? ✔Correct Answer-≥140 F and
<200 F
What is the flashpoint of an NFPA Class II combustible liquid? ✔Correct Answer-≥100 F and
<140 F
What is the flashpoint of an NFPA Class IC flammable liquid? ✔Correct Answer-≥73 F and
<100 F
What is the flashpoint of an NFPA Class IA and IB flammable liquids? ✔Correct Answer-<73 F
ESFR (Early Sensing Fast Response) sprinklers are used in warehouse settings because they:
✔Correct Answer-are effective and economical because they can replace in-rack sprinkler
systems 45ft. in height and less
Which type of fire detector is appropriate for a facility manufacturing wooden furniture?
✔Correct Answer-UV flame detector senses the UV light radiating from flames
A large tank that previously contained motor oil is to be cleaned. The tank will be ventilated and
the air tested prior to entry for cleaning. What is a safe level of the LFL (lower flammable limit)
for entry? ✔Correct Answer-10% - The atmosphere in a confined space must be below 10% of
the LFL prior to entry.
Harry's haunted house is a popular attraction at Halloween. Customers walk through an old
mansion through scenes of horrible crimes with ghosts and witches and goblins and other
monsters. Harry is concerned about the safety of his customers and employees. He spent over
$50,000 to install fire sprinklers in the mansion in case of fire. Harry's haunted house has one
dead-end corridor that is 70 feet long.
Has Harry violated sound fire safety practice? Why? ✔Correct Answer-Yes. Harry exceeded
the fire codes on the maximum length of a dead-end corridor protected with a sprinkler.
The maximum length of a dead-end corridor using sprinkler protection is 50 ft. in a mercantile
occupancy.
What is the purpose of the fire stop in building construction? ✔Correct Answer-It stops fire
from spreading.
, Fire stops are used to prevent the hot gases in a fire from spreading through the structures. Fire
stops may be fire walls, and they may be caulks or insulation placed in gaps between floors and
rooms.
A well-maintained fire suppression system uses wet-pipe sprinklers to control fires in an office
building. The sprinklers are designed to allow water flow when the temperature of the sprinkler
head reaches 100°F. There is a drop-down ceiling in the office building, and many of the panels
in the ceiling have been removed. How is the removal of the ceiling panels likely to affect the
sprinkler head operation? ✔Correct Answer-The sprinklers are likely to respond more slowly
to a fire.
The hot gases and smoke from a fire will rise past the sprinkler head and collect above the
ceiling panels. It will take longer for the sprinkler heard to reach 100°F.
An envelope containing a white powder is opened in an office. The white powder may be
anthrax spores. Which response is most likely to minimize risks? ✔Correct Answer-Shut down
the airflow through the HVAC system.
Risk will be minimized by keeping the powder as localized as possible. Shutting down the HVAC
system will keep spores from being spread throughout the workplace.
What type of fire extinguisher rating is appropriate for a restaurant kitchen? ✔Correct
Answer-Class K fires are fueled by cooking oils and greases.
What type of information from the DOT Emergency Response Guidebook is readily available to a
police officer responding to an accident involving a tractor-trailer carrying hazardous materials?
✔Correct Answer-The emergency response guidebook provides guidance on the initial response
to a hazardous materials incident.
Which type of detection device is most likely to first sense the presence of a smoldering fire
started in a hidden compartment? ✔Correct Answer-Ionization detectors use radioactive
materials to detect smoke particles.
A group of safety engineers are attending a safety conference. The group enters an elevator on
the 16th floor of their hotel and presses the button for the lobby. While they are riding the
elevator to the lobby, a fire alarm is triggered in the building. On which floor will the elevator
stop and discharge its passengers? ✔Correct Answer-Elevator panels always have a floor
marked with a star. This floor is the floor of primary recall in the event a fire is detected in the
building.
The primary occupancy classifications from NFPA 101 are; ✔Correct Answer-Assembly
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