3. • THE FIRE TRIANGLE IDENTIFIES THE THREE
COMPONENTS NEEDED TO FUEL FIRE
(SOMETHING THAT WILL BURN), HEAT ENOUGH
TO MAKE THE FUEL BURN AND AIR (OXYGEN).
THE THREE COMPONENTS MUST BE PRESENT
FOR IT TO CATCH ON FIRE. THE FIRE WILL BURN
UNTIL ONE OR MORE OF THE COMPONENTS IS
REMOVED. CONVENTIONAL FIRE-
EXTINGUISHING METHODS INVOLVE THE
REMOVAL OF FUEL, HEAT, OR OXYGEN.
17. • NOZZLES ARE FREQUENTLY USED TO
CONTROL THE RATE OF FLOW, SPEED,
DIRECTION, MASS, SHAPE, AND/OR THE
PRESSURE OF THE STREAM THAT EMERGES
FROM THEM.