apparatus safety
which ability or skill is necessary to understand maps, dispatch instructions, and preincident plans?
reading skills
which factor best determines the most advantageous position for an attack pumper?
Size-up
water is
virtually incompressible
_____ is produced with a fixed orifice and a smooth bore nozzle
solid fire stream
lift can be described as the difference in elevation between the surface of the static water supply and the:
center of the pump intake
which skill or ability is needed to connect an intake hose to a hydrant?
physical fitness
when the first apparatus arrives at an incident where no fire is evident, driver/operator should:
pull apparatus past the front of the building
for fire protection purposes, ordinary fresh water is considered to weigh
8.3 lb/gal
straight stream nozzles on handlines should generally be operated at a maximum of:
100 psi
when drafting, water is forced in and continues to rise until the pump is full of water or pressure within the pump and intake hose:
equals atmospheric pressure
which would most likely be exempt when emergency vehicles have their audible and visual warning lights on?
speed limits
which is a method of protecting personnel from traffic at an incident?
block lanes of the road where firefighters are operating
water may be used to smother fires in a combustible liquid when the:
liquids specific gravity is higher than 1
which nozzle is designed to flow a specific volume of water on all stream patterns at a specific nozzle discharge pressure?
constant flow fog nozzle
the height that a column of water may be lifted in sufficient quantity to provide a reliable fire flow is called
dependable lift
what generally accounts for a significant percentage of all damage repair cost for a fire department?
backing accidents
where should a pumper be positioned to supply a fire department connection most efficiently?
the second principle of pressure states that fluid pressure at a point in fluid at rest is:
the same intensity in all directions
what is the customary formula for discharge rate?
gpm= 29.7 x D^2 x Square root of NP
when drafting, as lift or friction loss in hard intake hose is increased, water supply capability of the pump
decreases
in most fire departments, it is standard operating procedure for firefighters to don protective gear:
before getting into the apparatus
how is the pumper position to supply a fire department connection best determined?
through preincident planning
in order to convert head in feet to head pressure in psi, you must divide the number of feet by:
2.304
which nozzle may also be referred to as a distributor?
cellar nozzle
which water source is the fire department most likely to require the owner to equip with appropriate connection points for fire department use:
private water storage tank