Flashcards in Class Notes Deck (85)
What is a quint?
Apparatus equipped with an aerial device, ground ladders, and fire pump, water tank and fire hose
What component is a step up transformer that converts the vehicles 12 or 24 volt DC current into 110 or 220 volt AC current
What component turns various lights on at specified intervals so that the start up electrical load for all the devices don’t occur at the same time?
What component watches the system for added electric load that threaten to overload system?
What is it called when the load monitor will shut down less important electrical equipment to prevent the overload
Steering wheel play should be no more than ______
10 degrees in either direction
NFPA braking test requirements
Complete stop from 20 mph in no more than 35 feet. Parking brake must hold apparatus on a grade of 20%
Air pressure should build to a sufficient level to allow driving within _____ of starting.
You might not be able to operator the air horn if the air reservoir drops below _____ because of the air pressure protection valve
Condition that occurs when the throttle is applied while the transmission is in too high a gear for a given set of conditions
Choose a gear that allows the engine to operate between _______ rpm
200 and 300 rpm.
Long idling periods can result in the use of ______ of fuel per hour
NFPA _____ states that all riders must be seated and belted, unless loading hose, providing patient care, or teaching tractor drawn aerial
The sum of the driver’s reaction time distance and the vehicles braking distance.
Total stopping distance
The distance a vehicle travels while a driver is transferring the foot from the accelerator to the brake pedal after perceiving the need for stopping.
The distance the vehicle travels from the time the brakes are applied until the apparatus comes to a compete stop.
It takes ______ more distance for a vehicle to come to a complete stop on snow and ice than dry concrete.
3 to 15 times
At speeds above ____ an emergency vehicle may outrun the effective range of its audible warning device
Vehicles moving at _____ can project 300 feet in front of the vehicle. At a speed of 60 mph however the siren is only audible 12 feet
______ staging may be used on an emergency response where two or more companies are dispatched. Hearing this order, other responding units stage at least one block away form the scene in the direction of travel and await further orders
____ staging is used where a large number of emergency vehicles are responding to the same incident. This staging is initiated by the IC.
The measure of the heat absorbing capacity of a substance.
Pressure is defined as ______
Force per unit area
A one square inch column of water one foot high therefore exerts a pressure at its base of _____
_____ feet of water column exerts a pressure of 1 psi at its base
2.304 feet (1 divided by .434)
At sea level, the atmosphere exerts a pressure of ______
Absolute zero is also called _____
A perfect vacuum
____ in the fire service refers to the height of water supply above the discharge orifice.
_____ is the forward velocity pressure at a discharge opening when water is flowing