8 - Ladders

Question 1

Ladder parts

Answer 1

Rungs
Beams
Tip
Butt
Butt spurrs
Heat sensor
Ladder stop
Pawls/dog
Anchor
Pully
Halyard
Bed section
Fly section
Lables

Question 2

The heat sensor label is positioned ___ and ___. It changes from ____ to ____ at ____°C plus or minus 5.

Answer 2

Below the second rung from the tip and below the center rung of that section.
Yellow to dark orange at 149°C +/-5.

Question 3

Ladder types, lengths and apparatus designations

Answer 3

Roof - 4.3m (PT), 4.8m (L), 14”4.8m (L)
Folding - Attic 3m (PTL)
Combination - AFrame (R)
Extension - Fresno 4.3 (L), 7.3m (PTL), 10.6m (L)
Mechanical - 30m (L)

Question 4

Ladder strength retention (%) in what minimum temperature

Answer 4

Must retain 75% strength in a minimum of 150°C

Question 5

Ladder construction types

Answer 5

Solid beam: c-channel or box tubing.
Truss beam: 2 or more pieces riveted together.

Question 6

Ladder safe operation

Answer 6

Appropriate PPE.
Choose correct ladder.
Correct number off and technique to lift and raise.
Lift with legs.
Check overhead hazards.
Ensure proper climbing angle 75.
Pawls are locked.
Ladder butted or secured.
2 FF per fly section.

Question 7

How many firefighters could be on a 3 section ladder

Answer 7

6

Question 8

What the proper climbing angle and 3 ways to check

Answer 8

75deg.
Arms out straight with feet in line with beam.
Butt placed away 1/4 distance of the working height.
Angle indicator (aerial)

Question 9

Safe ladder placement; 6 operational hazard considerations

Answer 9

Overhead powerlines and hazards.
Uneven surface.
Ice.
Fire.
Traffic areas.
Structurally unsound walls.

Question 10

What happens if butt is to far from building? To close?

Answer 10

Load capacity reduced, butt may slip.

Stability reduced, climbing more difficult.

Question 11

3 heeling methods

Answer 11

Front (preferred).
Behind (underneath, do not look up).
Securing to anchor.

Question 12

Ladder positioning: Ventilation

Answer 12

Upwind, tip even with top of window sill. Break glass from top corner.

Question 13

Ladder Positioning: Attack

Answer 13

Inside window, one rung over or level with bottom of window sill. Attack line hasty slinged to ladder.

Question 14

Ladder positioning: Entry/Egress/Rescue

Answer 14

Centered under window with tip even with window sill.

Question 15

Ladder positioning: Roof/Balcony Access

Answer 15

3-5 rungs above roofline or balcony railing. (Caution with loading the top side)

Question 16

Cleaning and Inspection

Answer 16

Inspect and clean after each use and periodically. Use water and soft bristle brush with mild soap.
-Heat sensor color changes
-Damaged/missing bolts/rivets
-Broken/cracked welds
-Deformations
-Damage
-Smooth extension/retraction

Question 17

How often is ladder testing done

Answer 17

Annually as per NFPA 1932

Question 18

Ladder Apparatus Placement

Answer 18

Pump and Tanker: 3m Attic folding, 4.8m Roof, 7.3m Extension

Ladder Truck: 3m Attic folding, 4.3m FRESNO, 4.8M Roof, 4.8m 14” NARROW roof, 7.3m Extension, 10.6m Extension, 30m Mechanical.

Rescue: Combination A-Frame.

Question 19

3 ladder carries

Answer 19

Shoulder carry: 1, 2, 3 person carry.
Hip/Underarm carry: 1, 2, 3 person carry
Flat shoulder carry: 3, 4 person carry

Question 20

2 Ladder raises

Answer 20

Flat raise
Beam raise

Question 21

Knots to tie halyard

Answer 21

Clove hitch followed by a safety knot