STCW - Basic Firefighting Questions and Answers Rated A+

STCW - Basic Firefighting Questions and Answers Rated A+ A __________ is water or other extinguishing agent after it leaves a nozzle until it reaches the desired target. fire stream A condition that occurs when flames move through or across unburned gases during a fire's progression is known as a __________. rollover A galley ventilator wash down system prevents ductwork fires by __________. closing a fire damper, turning on a water spray within the ductwork, and turning off the exhaust CO2 agent A hand held a few inches above a flame feels the heat by __________. convection A hand held a few inches to the side of a flame feels the heat by __________. radiation A horizontal flow of water over a hatch and above a fire can be used for what purpose? Smoke removal A list of crew members' positions and assigned locations is known as the __________. station bill A time delay does what for a fixed CO2 system? Provides a minimum of 20 seconds delay in discharge for ventilation shut down According to the __________, heat tends to flow from a hot substance to a cold substance. Law of Heat Flow Air cylinders should undergo hydrostatic testing every __________, depending on their composition. 3-5 years An explosive ignition of gases that results when air enters a compartment and mixes with hot, unburned gases is known as __________. back draft Another name for a flame detector is a __________. light detector Another name for a small fire in the ignition or growth stages is the __________ Phase Incipient Any operation that requires heat to do a job or generates heat during the job is known as __________. hot work Aqueous film forming foam wheeled semi-portable units are commonly found in __________. machinery spaces As a general guideline during firefighting, crew members should work for __________ and rest for __________. 15 minutes; 30 minutes At the very least, SCBA should be inspected __________. weekly Before donning the SCBA, the wearer should? Don the flash hood and pull it back around the neck Carbon dioxide extinguishers are effective in extinguishing which classes of fire, and at what range? Classes B & C; 3-5 feet CO2 extinguishes a fire by __________ the oxygen. displacing Combustion cannot be support below what oxygen concentrations? 3% Compressible substance with no specific volume that tends to assume the shape of its container is __________. gas Dewatering