Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

TFD > Ground ladders > Flashcards

Ground ladders Flashcards

1
Q

Ladders are used for _________

A
  • Rescue (removing victims and specialty rescues)
  • Accessing heights
  • Below grade access
  • Firefighting ops
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

NFPA for ladders

A

NFPA 1931
NFPA 1932
NFPA 1901

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

NFPA 1931

A

Standard of Design of and Design Verification Tests for Fire Department Ground Ladders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

NFPA 1932

A

Standard on Use, Maintenance, and Service Testing of Fire Department Ground Ladders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

NFPA 1901

A

Standards for Automotive Fire Apparatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Uses for ground ladders

A

a. Rescue victims from heights/below grade
b. Rapid roof access
c. Ventilation
d. Water chute (property conservation)
e. Battering Ram
f. Bridge between buildings
g. Firefighting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Types of ground ladders

A 
Straight or single wall
Roof
Extension
Folding
Combination (A-frame)
Pompier
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Straight or single wall

A

1 &2 story building access, lengths of 14-24ft (TFD 14-16ft)
ii. Non-adjustable in length and consists of only one section. Used for quick access to roof/windows.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Roof

A

i. Used for anchoring over pitched roofs (distributing the weight and footholds) 12-20ft lengths
ii. Single ladder equipped at the tip with folding hooks that provide a means of anchoring the ladder over the roof ridge or other roof part. Roof ladders are generally required to lie flat on the roof surface to provide a more stable foothold and distribute the weight.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Extension

A

i. Adjustable in length. Consists of a base and one or more fly section that travel in guides or brackets to permit length adjustment. Need more personnel to safely handle them.
ii. 14-50ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Folding

A

i. Single ladders that have hinged rungs allowing them to be folded so one beam rests against another. This allows them to be carried in narrow passageways and used in attic scuttle holes/small rooms/closets. Commonly 10ft long

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Combination (A-frame)

A

i. Designed so they may be used as a self-supporting step ladder. Can be used as 14ft straight ladder or 7 ft. A frame. Laddering fences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pompier

A

i. Used to climb into windows. Can be handed up from floor to floor. Dangerous and rarely used.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Ladder construction

A

a. Wood, fiberglass, aluminum allow
i. TFD uses primarily aluminum alloy and fiberglass.
b. Solid beam
c. Truss beam
d. Rungs
i. 1.25” diameter minimum
ii. 14” apart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Ladder safety

A

Ladders are inherently dangerous. They are heavy cumbersome and excellent conductors of electricity. Fire department ground ladders are used under adverse conditions. In order to prevent injury or death, safe practices and procedures regarding the unsafe of ladders must be followed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Ladders are dangers because ___

A

i. Heavy
ii. Awkward
iii. Conduct electricity
iv. Used in adverse conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Safety practices

A

i. “No overhead wires! No obstructions!” (Look out for power lines)
ii. Watch load limits set up by NFPA 1932.
1. Folding – 300lb
2. Straight, roof, and extension – 750lb

18
Q

Lifting

A

use legs, keep back straight when lifting/lowering

19
Q

Footing

A

have a good footing to improve stability when raising, lowering and climbing

20
Q

Lock pawls

A

verbally and visually express proper engagement prior to climbing

21
Q

locking in

A

do this when you need to use your hands

  1. Leg lock
    a. Do not use on aerials!!!
  2. Safety belt
22
Q

angle of inclination

A
  1. Working height of the ladder/4 = distance the feet should be from building
  2. ~75.5 degrees
23
Q

Placement and removal

A

viii. Coordinate moving of ladders with firefighters who originally placed them.
ix. Don’t put them in front of doors, blocking windows, or into direct flame. Please….

24
Q

Foremost concern for ladder raising

A

“Safety is the foremost concern from the moment the decision is made to use a ladder.”

25
Q

Functional objectives for ladders

A

rescue, firefighting, ventilation

26
Q

Physical objective

A

roofs, windows, balconies, fire escapes, fences, below grade

27
Q

What are some fireground conditions to be aware of when using ladders?

A

overhead wires, surface type, structural integrity, construction and configuration, amount of involvement, direction of fire/smoke.

28
Q

Good places for ladders

A
  1. Corners

2. Pitched roofs should have roof ladder

29
Q

Bad places for ladders

A
  1. Overhead obstacles
  2. Blocking access to structure/openings
  3. Areas of immediate involvement (its burning)
30
Q

Roof access stats

A

extend ladder 5-7 rungs past parapet
1. Makes it easier to get on/off
2. More visible
Make sure you have at least 2 ladders for getting on the roof

31
Q

Windows and ladders

A
  1. If window is large enough (wide), place 2-3 rungs in window
  2. If smaller, then place top rung just under window
  3. If victim is conscious, roll ladder into place to avoid jumping.
32
Q

Ventilation

A

place ladder on upwind side, with tip above window

33
Q

Pivoting ladders

A

i. Get into vertical position
ii. Pivot on inside beam
iii. Fire fighter facing forward movement looks up
iv. Fire fighter facing away from movement looks down

34
Q

Climbing ladders

A

i. Visualize and verbalize safety checks (lock pawls, halyard secure, footed well, correct angle
ii. Ensure proper climbing technique, regardless of equipment carried
iii. Be careful of using non-department ladders

35
Q

Locking

A

i. Facing the ladder, lock leg on side opposite from work
ii. Facing away from ladder, lock leg on rung, non-locked foot facing away from ladder
iii. Do not use leg lock on aerial!!!

36
Q

Carrying, raising, lowering

A

i. Carry with base forward when approaching structure, top forward when facing apparatus
ii. Use legs, not back
iii. Clear obstructions
iv. The fire fighter that can see other fire fighter gives commands

37
Q

When are inspections done?

A

Inspections are done monthly, quarterly per shift, on the Thursdays before the designated Sunday inspection dates

38
Q

What to inspect on ladders?

A

i. Rungs (tightness, deformities, wear, welds, twist)
ii. Beams (damage, rivets, heat sensors, length, tips painted)
iii. Roof ladders (hook assembly)
iv. Extension ladders (pawl assembly, halyard and pulley, stops)

39
Q

How to care for ladders?

A

a. Keep clean, dry, lubricated
b. Parafin wax can lubricate rungs where pawls ride over them
i. Done monthly, quarterly by shift
ii. Monthly at PSA
c. Do not use petroleum based lubricants
d. Clean with mild soap/water

40
Q

Heat sensor label

A

They react to heat over 300F. If an aluminum ladder reaches this temperature, it loses at least 25% of its load bearing capacity. Non-reversible and cumulative

TFD (39 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions