Chapter 7 Ladders

Question 1

What is the best climbing angle when using a ladder ?

Answer 1

70 degrees

Question 2

What is the height in Residential building (between floors) ?

Answer 2

9 feet

Question 3

What is the height in commercial buildings (between floors) ?

Answer 3

12 feet

Question 4

What is the average window sill height above the floor?

Answer 4

3 feet

Question 5

What is the average window height ?

Answer 5

4 feet

Question 6

What is the lose of overall ladder length when it is at an angle of 70 Degrees ?

Answer 6

6%

Question 7

What is the formula to approximate the Butt of a ladder away from a building ?

Answer 7

Working height divided by 4

Question 8

Where should the tip of the ladder be to ventilate the second story window ?

Answer 8

Tip should be even with the top of the window frame

Question 9

Where should the firefighter be when ventilating the second story window ?

Answer 9

Just upwind side of the just off of the object

Question 10

Where should the tip of the ladder be when you are entering and exiting a window to a ladder ?

Answer 10

Tip of ladder should be at or below the window sill

Question 11

What is NFPA 1932 ?

Answer 11

Fire department ground ladders

Question 12

Roof operations and ladders - how far above parapet should ladder be placed ?

Answer 12

5 rungs and 1 to 2 inches above parapet

Question 13

What is the best location for a aerial ladder placement ?

Answer 13

Perpendicular to the building

Question 14

Where are odd numbers located for North and South running streets ?

Answer 14

East side of street

Question 15

Where are odd number addresses located on East and West running streets ?

Answer 15

North side of street

Question 16

What are the three specific items that should be provided in an operations plan ?

Answer 16

number of people, tools and scope of duty

Question 17

Your personnel level dictates that you must consider all of the following factors ?

Answer 17

experience level of that member
the ability to act independently and protect himself
he presence of a portable radio

Question 18

At 10 am on a weekday morning, which room at home is likely to contain victims ?

Answer 18

Bedroom

Question 19

How does a firefighter know which window is to be used as an escape window ?

Answer 19

by completely clearing the laddered window of glass and sash

Question 20

NFPA 1932 states that a heat indicating label is exposed to what degree of heat ?

Answer 20

330 degrees F

Question 21

Placement of a elevated platform basket

Answer 21

flat roof with no parapet place basket just on the roof
moderate high parapet, place the basket with the top rail even with the top of the parapet
Parapets higher then 6 ft - try to find another location if possible

Question 22

Scrub Area ?

Answer 22

the amount of service area that may be physically contacted by an aerial device

Question 23

Factors effecting scrub area are :

Answer 23

greater the working height of a device the greater the scrub area
the further away from the building the less the scrub area
to close to a building the less scrub area the less scrub area there is to use

Question 24

Most effective positioning of a rear mounted device is ?

Answer 24

backing into the position and working off the back

Question 25

What should be kept in mind with Apparatus placement ?

Answer 25

A. Stop the aerial about 15ft from the edge of the building
B. Stop 15 ft from the rear edge of the building
C. Position the vehicle with the anticipated fire travel in mind

Question 26

What is”Precontrolled Overhaul” ?

Answer 26

This is done when the fire still has the upper hand

Question 27

15 second / 2 minute Rule ?

Answer 27

If the wall is to hot to keep your hand on it for less then 15 seconds then open up the wall.
2 minutes later the area should be checked again to make sure it has not getting hotter

Question 28

What is hydraulic overhaul ?

Answer 28

Using the hose line to wash down the entire area.

Question 29

What is the most important item affecting ladder selection on the fire ground ?

Answer 29

Length

Question 30

Composite ladders

Answer 30

Can conduct electricity
weight slightly more then other ladders
same load carrying capacity
Stand upto heat well

Question 31

Roof ladders must be how far above parapet walls

Answer 31

5 rungs and one to two inches out from

Question 32

Aerial ladders must be ______________ to the building.

Answer 32

Perpendicular

Question 33

What is the minimum width of ladders?

Answer 33

16 inches

Question 34

What is the design load of ladders according to NFPA 1932?

Answer 34

Design load of 750 pounds