Ladders 1 PL Flashcards
PL rungs are spaced at _” intervals
14”
Discoloration on PL may indicate _
Loss of structural strength. Fire Tools & Equipment Unit shall be notified
Upon receipt of spare rig, ladder brackets should be checked for holding capabilities. If they cannot be held securely _
If PL cannot be temporarily secured _
Fire Tools & Equipment Unit immediately notified by telephone along w/requisition forwarded & entry in journal. Check Temporary fastenings after each response;
Leave PL off rig & enter in journal
Unit Designation shall be marked within _” of each butt end
18”
Simple formula for obtaining 75 degree angle is to place base of PL a distance from vertical plane equal to _
1/4 total working length of ladder.
Working length= Distance from base of ladder to top of its support
PL Placement: Placed at window=
Placed at roof=
Placed alongside fire escape on bldg wall=
Placed against a fire escape=
Window= tip level w/window sill
Roof= Tip shall be at least 2’ above roof/parapet
Alongside fire escape= tip shall be 1-3’ above fire escape railing
Fire Escape= Tip slightly above fire escape railing
How is leg lock performed on PL
Leg performing maneuver is opposite working side. The locking leg is placed over & under rung that is 2 rungs above the one on which member is standing
PL Capacities for Collapsible ladders_
Roof, straight, & Extension ladders (26’/less)
Extension ladders (27-35’)
Collapsible up to 300lbs
26’/less up to 500 lbs
27-35’ Up to 600 lbs
Use of PL to bridge a fence:
Use 2 short PL & short length of rope/hose strap & FF ascends PL until top of fence is waist level. Butt end of 2nd PL passed to FF on 1st PL. Slide on beam to proper climbing angle. Tie adjacent beams where they intersect
Can PL be used in TL Basket:
Yes for purpose of saving life in Extreme emergency conditions when basket has reached max height
PL placement for Tenements & MD w/o front fire escape for fire in cellar, 1st floor, &/or 2nd floor
Raise PL adjacent to & above fire area even if AL will be required on upper floors
Front fire escape Tenement & MD: PL placement if overcrowded fire escape
Raised to 1st balcony at point opposite drop ladder. If more relief needed-2nd PL raised to 2nd balcony
How would you get a PL to the rear of a Brownstone
Take it via 2nd fl (Parlor) of an adjoining brownstone & pass it out rear window to another FF in yard below (faster than using fire bldg)
PL to rear of Rowframe
Via interior of fire bldg is generally less complicated because there are front & rear doors/window entries at ground level
In Brownstones it’s important to take PL through w/_ facing rear of bldg.
_ ladders are preferred at Brownstones
Butt
Extension
Can PL be used to force lexan windows
Yes use butt of ladder in corner adjacent to window frame w/3 or 4 FF’s applying gradual leaning pressure forcing inward
Member on PL to force a window shall place PL
Tip of ladder level with, or higher than top of window
Can extension ladders be used for bridging
Can a PL positioned by FF to gain entry be repositioned
Yes but only in nested position
Do NOT reposition except to use PL for rescue. Members operating the area of the PL must be notified & it shall be returned to its original location ASAP
Can Extension ladder be used upside down
Do NOT climb higher than _ rung on PL
Never
3rd rung on PL for either straight & extension
Candle wax, paraffin, & grease shall be applied every _
3 months to all contacting surfaces
Pulleys are found on all extension ladders. These pulleys have ball-bearing centers that require 1-2 drops of oil every _
Once a year
Aluminum ladders are tough. They will _, but not _ or _ when subjected to severe impact nor will they fail due to overloads.
Dent; chip or crack. They will bend not break as wood does
Numerical length shall be marked on side of rails within _” of end of ladder
Straight ladder mark _vs Extension lad
12”
Straight= marked on end of each rail
Extension= butt end only of each rail of bed ladder
Climbing angle for ground PL =
65-75 degrees
Visual inspection of PL shall be made _
Thorough inspection _
Weekly & after use
Monthly
Party wall balcony fire escapes where fire has spread to the adj bldg eliminating it as a 2nd means of egress- due to portability, which PL may be used to gain access to various balcony levels by the Roof or OV FF for search & rescue by lowering it from the roof to the top balcony? A. 12' hook B. 16' hook C. 10' scissor D. 14' A-Frame
A 12’ hook
When performing the evolution "Hoist a Portable Ladder to the Roof," the officer & 4 FFs go to the roof with all of the tools below except? A. Forcible entry tools B. Utility rope C. Life belt D. Lifesaving rope
D Ladder roller
Member on PL using tool to vent window shall _
Extend his arms upward & slant tool downward & strike the glass
Which PL placement was correct?
A. At a taxpayer, the roof firefighter placed the ladder 3 feet above the parapet, at a 70 degree climbing angle.
B. At a PD fire, the OV placed the ladder 4 inches above the window sill, at a 75 degree climbing angle.
C. In the rear of a rowframe, the OV placed the ladder alongside the fire escape, 3 feet above the railing, at a 60 degree climbing angle.
D. At a fire in a tenement, the LCC placed the ladder against the fire escape, with the tip slightly above the railing, at an 80 degree angle
A
B. Should be level with the sill
C. The climbing angle should be between 65-75 degrees.
D. The climbing angle should be between 65-75 degrees.
Venting a window using a PL without a member on the ladder _
Position PL so that it will break the desired window glass area when dropped against the window. When the PL strikes the glass there should be NO contact between FF & PL. As soon as glass sections have fallen or are clear, FF must stabilize PL to prevent it from falling to the ground
PL may be placed over weakened, damaged, or burnt out stairs in order to gain access to upper stories of bldg. The preferred ladder for this is _
The Extension Lad rather than a straight lad. Butts shall be supported by the floor at the base of the stair, while both upper beams at the tip of Lad should rest on upper fl landing for proper support
The halyards on the 24’ extension lad are generally made of _ rope;
Halyards on 35’ ext lad are made of _
Manila rope;
Poly blend
Correct?
A: When placed against a fire escape, the portable ladder’s tip shall be at least 1-3 feet above the fire escape railing.
B: To perform a leg lock, the locking leg is placed over and under the rung that is 2 rungs above the one on which the member is standing on.
C: If using a portable ladder to vent a lexan window, place the tip of the ladder on the window, in the corner, adjacent to the frame.
D: In most cases, taking a ladder through the 1st floor of an adjoining Brownstone to the rear is faster than using the fire building.
B
A. It should be slightly above the railing
C. Butt end
D. 2nd floor
At times it’s necessary to gain access to a particular area surrounded by a high fence with no immediately available entry way. What ladders does the portable ladder bulletin list as examples for completing this task?
A: 14 foot ‘A’ frame and 10 foot ‘A” frame
B: 16 foot extension ladder and the 12 foot hook ladder
C: 20 foot combination ladder and the 12 foot hook ladder
D: Two short portable ladders and a short length of rope or hose strap
D
Note: The adjacent beams of the two ladders are tied together securely where they intersect, to prevent ladder movement during use by a short length of rope or a hose strap. 9.2.1 5th bullet
Ladder brackets & clamping devices on rigs must be designed to fit the PL being held. Incorrect
A: If PL is stored in slides or in internal racks on the rig, slight pressure or force may be need to remove it
B: If ladders cannot be held securely, the Fire Tools and Equipment Unit shall be immediately notified by telephone
C: Provisions shall be made to secure ladders as safely as possible pending repair or relocation of ladder holding devices by the Fire Tools and Equipment Unit. These temporary fastenings shall be checked after each response
D: If there is a danger of loss of the ladder during a response, the ladder shall be left off the apparatus. An entry of this action shall be made in the company journal
A. It should remove easily WITHOUT force. Portable ladders sec 5
OV reports a person trapped on the 2nd fl at the rear of a Brownstone with no fire escape. According to PLs, which would be the most appropriate ladder to call for?
A: 35’ extension ladder
B: 24’ extension ladder or 14’ “A” frame ladder
C: 16’ or 25’ extension ladder
D: 24’ or 35’ extension ladder
B. 10.3 Portable Ladders was updated on 4/10/14
A. 4th floor
D. Third floor
Least correct for PL
A: Hook ladder/roof ladder is a ladder equipped with non folding hooks at the top
B: A gusset plate is a flat metal plate used in truss constructed ladders, which connects the rails of the beams and supports the rungs
C: A latching device- used on combination ladders to lock the ladder in position. It consists of hinges/pins
D: A safety shoe is a swivel type butt plate consisting of rubber tread and a spike. It may be used with either the rubber or the spiked end on the ground
Portable Ladders
A. Hook ladder/roof ladder is a ladder equipped with folding hooks at the top. Glossary
