TFM02 LATEST 2026 COMPREHENSIVE EXAM
QUESTIONS AND ANSWERS GRADED A+
✔✔Ethylene glycol - ✔✔Plain water extinguishers should not be protected against
temperatures below 40 degrees (F) with
✔✔antifreeze - ✔✔AFFF and FFFP extinguishers can not be protected against
temperatures below 40 degrees (F) by adding
✔✔stainless steel - ✔✔Calcium chloride solutions should not be used in extinguishers
made out of
✔✔7 ⁵/₈ by 11 inches - ✔✔Recommended size of an extinguisher sign
✔✔chlorine - ✔✔A dry chemical extinguisher containing ammonium compounds should
not be used on oxidizers that contain
✔✔13 seconds - ✔✔The UL 711 required minimum discharge duration for a rated 2A or
higher extinguisher
✔✔30 pounds - ✔✔The UL 299 required maximum force to remove a safety pin from an
extinguisher
✔✔484 - ✔✔The standard for combustible metals is NFPA
✔✔1½ times heavier than air - ✔✔Carbon dioxide gas is ____ times heavier than air
✔✔¹/₈ inch - ✔✔Minimum letter height for high pressure cylinders stamped with
"CONDEMNED"
✔✔The expiration of the test period -or- until the cylinder is again tested -
✔✔Hydrostatic test records shall be maintained by the organization performing the test
until either
✔✔nameplate -or- shell - ✔✔Cartridge operated extinguishers shall be tested at the
original factory test pressure as shown on their
✔✔Not to exceed 3 times the service pressure - ✔✔Where pressure is not specified on
the nameplate of a stored pressure extinguisher, it shall be tested at the factory test
pressure not to exceed how many times the service pressure
✔✔nameplate - ✔✔Stored pressure extinguishers shall be hydrostatically tested to the
pressure specified on the extinguishers
QUESTIONS AND ANSWERS GRADED A+
✔✔Ethylene glycol - ✔✔Plain water extinguishers should not be protected against
temperatures below 40 degrees (F) with
✔✔antifreeze - ✔✔AFFF and FFFP extinguishers can not be protected against
temperatures below 40 degrees (F) by adding
✔✔stainless steel - ✔✔Calcium chloride solutions should not be used in extinguishers
made out of
✔✔7 ⁵/₈ by 11 inches - ✔✔Recommended size of an extinguisher sign
✔✔chlorine - ✔✔A dry chemical extinguisher containing ammonium compounds should
not be used on oxidizers that contain
✔✔13 seconds - ✔✔The UL 711 required minimum discharge duration for a rated 2A or
higher extinguisher
✔✔30 pounds - ✔✔The UL 299 required maximum force to remove a safety pin from an
extinguisher
✔✔484 - ✔✔The standard for combustible metals is NFPA
✔✔1½ times heavier than air - ✔✔Carbon dioxide gas is ____ times heavier than air
✔✔¹/₈ inch - ✔✔Minimum letter height for high pressure cylinders stamped with
"CONDEMNED"
✔✔The expiration of the test period -or- until the cylinder is again tested -
✔✔Hydrostatic test records shall be maintained by the organization performing the test
until either
✔✔nameplate -or- shell - ✔✔Cartridge operated extinguishers shall be tested at the
original factory test pressure as shown on their
✔✔Not to exceed 3 times the service pressure - ✔✔Where pressure is not specified on
the nameplate of a stored pressure extinguisher, it shall be tested at the factory test
pressure not to exceed how many times the service pressure
✔✔nameplate - ✔✔Stored pressure extinguishers shall be hydrostatically tested to the
pressure specified on the extinguishers
