Fire suppression Flashcards
The basic agent used in the on-board storage tanks to suppress fires is ________
foray
In an A-101 system on mobile equipment, what activates the settled chemical suppressant?
pressurized gas
_____________ is not an automatic suppression system activator.
manual activator
____________ is an automatic suppression system activator.
Thermal linear detection wire
Thermal spot detectors
sharp eye detectors
What is the lead cause of fires on mobile heavy equipment?
combustible substance contacting the exhaust system
The unwanted ignition of a fuel substance is often caused by _____
the exhaust system
The proper operation of the fire suppression system allows the operator to _______
- time to get off the equipment
- time to shut down the engine
- time to stop the vehicle
The part installed on the blow-off nozzle to protect it from debris is a _____
plastic cap
What is the “path of egress” ?
The operators emergency exit route
Why is liquid chemical suppressant superior to dry chemical?
It has 6 times the cool down rate
What happens once the ECM receives a signal from a sensor?
A short delay of 20 seconds
What is the operating temperature of dry chemical systems?
-65 to 210 F
(-54 - 99 C)
A liquid fire extinguishing chemical solution is usually freeze protected to ____F or ____C
-60 F
-51 C
How often should the blasting caps for automatic fire systems be replaced?
Every five years
How often should the hoses used to carry the chemical agent be replaced?
every five years
