Ch. 1-7 IFSTA Aerial Operator Questions and
Answers 100% Correct
___: the fully extended length of the ladder. - ANSWER-The working height
_____: provides the primary function of providing continuous rotation of the aerial device on a
horizontal plane. - ANSWER-Turntable
the working height of north American-made aerial ladders range from ___ to ___ feet. - ANSWER-50
to 135 feet
The working height for aerial ladders is measured from: - ANSWER-the ground to the highest ladder
rung with the ladder at maximum elevation and extension
The main uses of aerial ladders are: - ANSWER-rescue, ventilation, elevated master streams
application, and gaining access to upper levels
Apparatus equipped with steerable rear wheels on the trailer: - ANSWER-tractor-trailer aerial (tiller
trucks)
In general, tractor-trailer trucks are ___ maneuverable that single-chassis vehicles. - ANSWER-More
maneuverable
____ consist of an assembly of bars or rods to form a rigid framework. - ANSWER-Trusses
Aerial ladder platform apparatus are similar to aerial ladder apparatus except that a ______ is
attached to the end of the aerial ladder. - ANSWER-Work platform
Aerial ladder platforms commonly range in size from ___ to ___ feet. - ANSWER-85 to 110 feet
trusses may be constructed by several methods, but engineering design has proven hat trusses lend
more strength if their assembled members form ___ or a combination of triangles. - ANSWER-
Triangles
, NFPA 1901 requires that aerial ladders have at least two sections and a minimum reach of ___ feet. -
ANSWER-50 feet
The bottom section of the aerial ladder is referred to as the __ section. - ANSWER-Base (bed) section
The two most common materials for construction of aerial ladders are: - ANSWER-heat-treated
aluminum alloy and steel
The three main portions of an aerial ladder to which firefighters and driver/operators commonly
refer to are: - ANSWER-the base rails, the top rails, and the rungs
The ___, commonly referred to as the beams, are the lower chords of the aerial ladder to which the
rungs, trussing, and other portions of the ladder are attached. - ANSWER-Base rails
The ____, also known as the handrails, are the top chords to which the opposite ends of the trussing
are attached. - ANSWER-Top rails
The ___ are the portions that are attached between the two base rails and are used as steps for
personnel on the aerial ladder. - ANSWER-Rungs
_____ are capable of receiving oil under pressure form both sides of the piston so that force can be
created in either direction. - ANSWER-Double-acting cylinders
the ___ is typically a 12-volt DC, electrically operated pump connected directly to the vehicles
battery. - ANSWER-Auxiliary pump
NFPA 1901 requires that no section of the aerial ladder be narrower than ___ inches. - ANSWER-18
inches
The rungs should be spaced on ____ centers and be covered with a nonskid finish. - ANSWER-14-
inche
The top (hand) rails must be at least __ inch(s) wide and at least ___ inches above the base rail. -
ANSWER-1 inch wide at at least 12 inches above base the base rail
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