Ladders 1 Flashcards by mike Gauriloff

35’ extension ladder
Closed length
Weight

Closed length 20’

Approx weight 135lbs

How well did you know this?

Not at all

Perfectly

24’ extension ladder
Closed length
Weight

Closed length 14’

Approx weight 80lbs

How well did you know this?

Not at all

Perfectly

20’ straight ladder

Weight

Approx weight 55 lbs

How well did you know this?

Not at all

Perfectly

20’ (hook) straight ladder

Weight

Approx weight 60 lbs

How well did you know this?

Not at all

Perfectly

12’(hook) straight ladder

Weight

Approx weight 35 lbs

How well did you know this?

Not at all

Perfectly

14’ A Frame
Closed length
Weight

Closed length 7’

Approx weight 35lbs

How well did you know this?

Not at all

Perfectly

10’ folding
Closed length
Weight

Closed length 11’

Approx weight 16 lbs

How well did you know this?

Not at all

Perfectly

Marine companies carry 12 foot and 20 foot portable hook ladders with wood beams. They are painted __________

Black except for the hooks and for 18” at the base of each beam, which are painted white

How well did you know this?

Not at all

Perfectly

Where are the length and company ID located on marine company 12 and 20 foot portable hook ladders?

Stenciled on the exterior of both beams

How well did you know this?

Not at all

Perfectly

What are the two types of aluminum ladders?

Solid beam aluminum construction and aluminum truss construction.

How well did you know this?

Not at all

Perfectly

Solid Beam Aluminum construction

Type of ladder that has solid side rail construction with aluminum rings connecting with the side rails at 14” intervals.

How well did you know this?

Not at all

Perfectly

Aluminum truss construction

The top and bottom rails are connected to rung assemblies by rivers and gusset plates. This construction allows greater side beam heights without adding to the weight of the overall ladder

How well did you know this?

Not at all

Perfectly

Aluminum ladder advantages

-Lighter in weight and stronger than 
wood
-will not weaken with age. Long life expectancy. 
-will dent but will not chip or crack. 
-will not fail suddenly due to overloads
-bend but not break

How well did you know this?

Not at all

Perfectly

Disadvantages of aluminum ladders

readily conduct electricity
conduct heat rapidly
if subjected to excessive heat it may lose heat treatment resulting effecting its load carrying capacity.

How well did you know this?

Not at all

Perfectly

If ladder is exposed to excessive heat you may see discoloration or you may not. Either way you shall notify

Fire Tools and Equipment Unit

How well did you know this?

Not at all

Perfectly

Marking of portable ladders:

Straight ladders

Ladder length marked on each end of the rail

Unit designation within 18” of each butt

How well did you know this?

Not at all

Perfectly

Marking portable ladders:

Extension ladders

Ladder length shall be marked at the butt end only of each rail of the bed

Unit designation within 18” of each butt

Climbing angle

65-75 degrees
Or
1/4 the total working length of the ladder

Ladder placement at window

Tip shall be level with the window sill

Ladder placement at roof

Tip shall be at least 2 feet above the roof or parapet

Ladder placement alongside a fire escape on a building wall

Tip shall be 1-3’ about fire escape railing

Ladder placement against a fire escape

Tip shall be slightly above the fire escape railing

When butting a ladder the member places his _____ foot in the center of the bottom rung of the ladder while maintaining downward pressure

The LEFT foot is placed in the center of the first rung

Where are hands placed while butting ladder

Against and grasp the ladder beams to aid in steadying the ladder

If firefighter is working off to one side of the ladder what does the butting member do?

Shift his left foot from the center of the bottom rung to the side opposite the one from which the firefighter is working, placing their foot next to the beam

Can a ladder be left unattended?

Yes. If it left unattended it should be secured at the tip by the first member that climbs the ladder.

The member climbing the ladder should grasp where with their hands?

The undersides of the beams are grasped with the hands

When climbing a ladder the firefighter should use what part of their feet?

Climb on the balls of the feet near the arch, left and right of the center line, up and down the ladder.

When climbing a ladder the eyes look where?

During the climb, eyes look up or forward

If a tool is carried while climbing a ladder how should it be carried?

It should be balanced in the carrying hand, which holds on to the side of the beam. DO NOT CARRY TOOL CLOSE TO THE BODY OR INSIDE THE LADDER OVER THE RUNGS

During freezing weather when ice forms on the ladder where should your feet be placed

Position the rung of the ladder under the arch of the boot, next to the heel. Directly next to the beams.

Which leg is the leg lock performed on?

Opposite the working side.

How is the leg lock performed?

The locking leg is placed over and under the rung that is two rings above the one on which the member is standing -Instep of the locking leg placed on the beam opposite members working side

Collapsible ladder load capacity

Up to 300lbs

Roof,straight,extension ladder(26’ or less) load capacity

500lbs

Extension ladder(27’-35’)

600lbs

What size ladder should be placed over weakened, damaged, or burnt out stairs?

24’ extension ladder

What tool should be used and how should you ventilate a window from a portable ladder?

6 foot hook is preferable. Extend arms upward and slant the tool downward to strike glass. This prevents glass from sliding down the tool and causing injury.

Placement of portable ladder for venting window

Upwind | Ladder should be level with or higher than the top of the window

Venting window without member on the ladder

When Ladder strikes the glass there should be no contact between the member and ladder

How to use portable ladder to force me lexan window

Place butt of ladder on lexan window adjacent to window frame. 3-4 members apply gradual leaning pressure against the window until forced inward