Ch7 Ladder Company Operations

Question 0

What three basic tools will be required at almost all structure fires?

Answer 0

Forcible entry bar, flathead axe, and some type of hook or pole.

Question 1

What does LOVERS U stand for?

Answer 1

L-Laddering
O-Overhaul
V-Ventilation
E-forcible Entry
R-Rescue
S-Search
U-control of Utilities

Question 2

What is the single most important factor affecting ladder selection?

Answer 2

Length

Question 3

NFPA requires how many feet of ground ladders?

Answer 3

168’

Question 4

What is the nested length of a 2 section 35’ ladder?

Answer 4

20’

Question 5

What is the estimated distance from floor to floor of a residential building?

Answer 5

9’

Question 6

What is the estimated distance from floor to floor of a commercial building?

Answer 6

12’

Question 7

Average windowsill height is how far above the floor, and the average window is how tall?

Answer 7

Windowsill 3’ from the floor with windows being an average of 4’ tall.

Question 8

What is the proper climbing angle for a portable ladder?

Answer 8

About 70 degrees

Question 9

At a 70 degree angle, about 6% of a ladders total length is lost. The remaining 94% is called what?

Answer 9

The working length

Question 10

A 13’ reach is required to reach what floors windowsill?

Answer 10

2nd

Question 11

How do you estimate the proper distance away from the building to place the butt of your ladder to gain the proper climbing angle?

Answer 11

Estimated working height divided by 4.

Question 12

When venting a window from a ladder, where do you place the tip of the ladder?

Answer 12

Even with the top of the window frame on the upwind side.

Question 13

If entering or exiting through a window, where do you place the tip of the ladder?

Answer 13

Just at or below the windowsill.

Question 14

What does NFPA 1932 require on each section of aluminum and fiberglass ladders?

Answer 14

Heat indicating labels.

Question 15

At what temperature do the heat indicating labels on ladders change color?

Answer 15

300 degrees

Question 16

Why is the design load of firefighting ladders 750 lbs?

Answer 16

Because it usually takes two firefighters to remove a single unconscious person. 250 lbs per person.

Question 17

What is the narrowest width our ground ladders can be?

Answer 17

16”

Question 18

A platform attached to a boom with a built in waterway and a side less escape ladder is known as a what?

Answer 18

Tower ladder

Question 19

When raising an aerial to the roof, how far should the ladder extend above the level of the roof?

Answer 19

At least 5 rungs.

Question 20

How far should the ladder itself remain out from the building?

Answer 20

1”-2”

Question 21

How far should you keep aerials away from wires?

Answer 21

10’

Question 22

When placing a platform to the roof, with no parapet wall, where should it be placed?

Answer 22

Place the basket over the building so that it is just resting on the roof.

Question 23

When placing a platform to the roof of a building with a parapet wall of moderate height (3-6 ft), where should it be places?

Answer 23

Place the top rail of the platform basket just slightly above the top of the parapet.

Question 24

When placing a platform to the roof of a building with an unusually high parapet wall, over 6 ft, where should you place the platform?

Answer 24

It is best to relocate the platform.

Question 25

When positioning platforms for rescue, how should you spot?

Answer 25

With the basket inline with the victim.

Question 26

When positioning aerial ladders for rescue, how should you spot?

Answer 26

With the turntable in line with the victim.

Question 27

What is the width of most aerial ladders?

Answer 27

20”-24”

Question 28

Why should you place the tip of the aerial ladder just below the windowsill?

Answer 28

To leave most of the window free for access.

Question 29

The amount of surface area that may be physically contacted by an aerial device is the definition of what?

Answer 29

Scrub area.

Question 30

What is the 15-sec. 2-min rule?

Answer 30

If a firefighter can leave his bare hand on the surface for 15-20 seconds without undue discomfort, there is no immediate need to open the wall. That same firefighter rechecks that spot in 2 minutes. If it feels the same or is hotter, open the wall.

Question 31

What 5 senses do you use during post control overhaul?

Answer 31

Sight, hearing, touch, smell, common sense.

Question 32

What is the NFPA standard for use, maintenance, and service testing for fire dept ground ladders?

Answer 32

NFPA 1932

Question 33

After raising a ground ladder to the proper height, what do you do with the halyard?

Answer 33

Tie it to the bed section to prevent retraction of the ladder.

Question 34

What color of ash from normal class A combustibles is still hot enough on the surface to reignite?

Answer 34

White or grey

Question 35

At what temperature does human skin begin to develop burns?

Answer 35

120 degrees F

Question 36

At what temperature do common combustibles begin to ignite?

Answer 36

400 degrees F

Question 37

What is the least used sense in overhaul?

Answer 37

Smell

Question 38

Where is the best position for a FF to be standing when he begins to pull ceiling?

Answer 38

In the doorway of the room, incase the entire ceiling comes down.

Question 39

When does salvage begin?

Answer 39

The moment of arrival.