Cadet mannuels Flashcards
(30 cards)
What is Type I construction also known as?
Fire-resistive construction — designed to withstand high temperatures for extended periods.
What defines Type II construction?
Non-combustible construction with limited fire resistance; typically metal framing.
What is the main feature of Type III construction (Ordinary)?
Combustible interior with non-combustible exterior walls.
What characterizes Type IV construction (Heavy Timber)?
Large, heavy wood structural members providing inherent fire resistance.
What is Type V construction?
Wood-frame construction with all components made of combustible materials.
What is balloon framing?
A framing method using continuous studs from the foundation to the roof.
What is platform framing?
A method where each floor is built separately, offering better fire stopping.
Why is lightweight truss construction hazardous?
It can fail rapidly under fire due to minimal mass and fast heat transfer.
What type of loading is created by a firefighter jumping on a roof?
Impact loading.
What is a void space and why is it dangerous?
Hidden spaces within construction where fire can spread undetected.
What size is a CFD supply hose typically?
125 mm.
What is a hard suction hose used for?
Drafting water from static sources.
What are the two main functions of a booster tank?
To supply water to the pump and be refilled or circulated via pump panel controls.
What pressure is a 65 mm CFD attack hose rated for?
2800 kPa (400 psi).
What is the function of the pump discharge pressure gauge?
Measures total output pressure from the pump.
What is the purpose of a bleeder valve?
To release air from intake lines and maintain pump prime.
What is ‘Volume Operation’ on a pump?
Parallel stage use for maximum flow at lower pressure.
What is ‘Pressure Operation’ on a pump?
Series stage use for maximum pressure at reduced flow.
What type of coupling is common for CFD wildland hose?
¼ turn quick connect.
What does a Pressure Sensing Governor (PSG) control?
Engine RPM or discharge pressure automatically.
What are the two primary products of combustion?
Heat and smoke.
What gases are typically found in smoke?
Carbon monoxide, hydrogen cyanide, carbon dioxide, nitrogen.
What is the most toxic gas produced by incomplete combustion?
Carbon monoxide.
What does the ‘Flame Interface’ refer to?
The area between fuel and visible flame where minimal burning occurs.
