Can you hear me now?
All radio communications in the US are regulated by what agency
FCC
Which type of construction offers the least amount of fire protection
Class V
What are the 3 parts of the fire triangle
Heat, oxygen, fuel
Helmets, coats, pants, boots and gloves are all worn by firefighters and refered to as _____
PPE
What kind of fire does a class A extinguisher put out?
Ordinary combustibles
These are used to strengthen communications signals between radios
Repeaters
Why are photovoltaic (PV) systems hazardous to firefighters?
Even if the power to the building is off, the panels retain a significant amount of electricity
What is the transfer of thermal energy due to the circulation or movement of a fluid
Convection
Protective clothing traps body heat and _________
Moisture
What does AFFF stand for?
Aqueous Film Forming Foam
Of the 3 radio systems common to the fire service, this is the strongest
Base Station Radios
When do building codes allow the use of unprotected stairs
When they connect only two adjacent floors above the basement level
What is the difference in flash point and fire point
Flash point is the minimum temp at which enough vapors can ignite, and fire point is the minimum temp at which enough vapors can not only ignite, but also sustain combustion
What are the 3 components layers) that make up structural fire coats
Moister barrier, thermal barrier, outer shell
What color and symbol is used to designate a Class D combustible metal fire extinguisher
Yellow Star
The national incident managment system (NIMS) requires the use of this, rather than agency specific codes such as ten codes
Clear Text
Which window type includes a large number of narrow overlapping glass sections swinging outward
Jalousie
What are primary indicators of a potential backdraft
thick dense smoke often under pressure, smoke pushing out of cracks, glass appears darkened, little to no flame
Wildland firefightering PPE standard is which NFPA
1977
How do class K rated extinguishers work?
Saponficiation - Converting the fatty acides or fats to a soapy film
What is the NFPA number for the standards for emergency services communications
NFPA 1225
Which door is constructed of wood components finished to present a smooth, unbroken surface on both sides?
A flush door
How does pyrolysis contribute to fire developement and what is it
Chamical decomposition of solid materials by heat which causes offgasing. Offgasing produces fuel to susteain combustion in fire development
Firefighters should wear hearing protection when noise exceeds what decible level
90
Class A extinguishers are rated 1-A through ______.
40-A