Aerial Apparatus pt. 3 Flashcards
?s 106 - 153 (48 cards)
In a hydraulic system, the medium used to transmit force is:
hydraulic fluid
If an apparatus begins to skid, you should:
turn the apparatus steering wheel so the front wheels face the direction of the skid.
The lower cord of an aerial ladder to which the rungs, trussing, and other portions of an aerial ladder are attached is the:
base rail.
The use of warning devices:
negates some traffic laws.
What are two primary areas of concern and focus on articulating platforms?
Articulating elbow/working end
NFPA 1901 establishes minimum requirements for forcible entry that specifically includes:
pickhead axes
One way to effect a blitz attack with an elevated master stream is to try to deflect water off the _______ of the fire room.
ceiling
When parked on a ________ grade, do not extend or retract the aerial device over the side of the apparatus.
longitudinal
A double-acting hydraulic cylinder is different from a standard hydraulic cylinder because it:
is capable of receiving pressurized oil from both sides of the piston.
Which establish requirements for seat belts on fire apparatus?
NFPA 1901 & NFPA 1500
Minimum qualifications for fire apparatus driver/operators are set by:
NFPA 1002
The transition from the water tank to an external water supply:
must be made without disrupting the fire attack.
Which is true with regard to using the inter-axle differential lock on vehicles so equipped?
Always unlock the inter-axle differential lock switch again when road conditions improve.
If the foam concentrate inlet to the eductor is too high:
foam may not be inducted
The purpose of using a spotter is to assist:
the driver by observing the area in the blind spot.
What is the first step for retracting the stabilizers?
Remove the safety pins from the jacks.
______ tests include manufacturer’s tests, aerial device certification tests, and acceptance tests.
Preservice
Approximately ____ psi should be added to the desired engine pressure for each floor above the standpipe connection.
5
Jackknifing occurs when the trailer and cab are:
LESS than a 90 degree to one another while in motion or static.
When more than one emergency vehicle are responding along the same route, units should travel at least ______ feet apart.
300 - 500
Prior to changing from tank water to an external source:
make sure all air is bled from the intake.
You are responding to an emergency in the center lane when the vehicle ahead stops. Which evasive tactic should be employed?
Brake to reduce speed as you pass on the left side.
The two (2) types of position grades on which you may find yourself setting up are:
longitudinal and lateral.
Which statement must be observed when using foam?
The eductor must control the pressure through the system.