Ladders

Question 1

What types of ladders does the Ventura County Fire Protection District utilize?

Answer 1

Aluminum folding ladders, roof ladders, extension ladders, aerial ladders

Aerial ladders are used to access areas that portable ground ladders cannot reach.

Question 2

What is the material used for the aluminum ladders by DuoSafety?

Answer 2

6061 T6 Aluminum

Question 3

What is the duty rating of the aluminum ladders?

Answer 3

750 lb Duty Rating

Question 4

At what temperature do the heat sensors on the ladders change color?

Answer 4

300 degrees

Question 5

What is the rung spacing on the aluminum ladders?

Answer 5

14” on center

Question 6

What is the diameter of the rungs on the aluminum ladders?

Answer 6

1.25 inches

Question 7

How many serrations are there per rung on the aluminum ladders?

Answer 7

20 serrations

Question 8

What is the optimal climbing angle for ladders?

Answer 8

75 degrees

Question 9

What is the minimum climbing angle for ladders?

Answer 9

68 degrees

Question 10

What is the minimum number of rungs over the roof line recommended?

Answer 10

3 rungs minimum, 5-7 preferred, 7 maximum

Question 11

What should be the distance from the top of the ladder to electrical lines?

Answer 11

10ft

Question 12

True or False: A 14’ extension ladder can be thrown by 1 firefighter.

Answer 12

True

Question 13

What is the reach of a fully extended aerial ladder?

Answer 13

105’, effective reach of 7 stories

Question 14

What weight does a 10-foot attic ladder have?

Answer 14

16 pounds

Question 15

What is the rated weight capacity of a 10-foot attic ladder?

Answer 15

300 lbs

Question 16

Fill in the blank: Ladders should be cleaned and inspected after every _______.

Answer 16

use

Question 17

What should be inspected for damage on the ladders?

Answer 17

Loose or cracked rungs, hairline fractures in beams, damaged lock mechanisms, condition of pulleys and halyard, condition of heat sensors

Question 18

How often should paraffin wax be applied to sliding surfaces on ladders?

Answer 18

Every 3 months

Question 19

What cleaning method is not recommended for ladders?

Answer 19

Use of power tools

Question 20

What is the purpose of the 4-digit county ID on ladders?

Answer 20

Identification

Question 21

What is the maximum weight a 20-foot roof ladder can support?

Answer 21

1 firefighter at the tip

Question 22

What type of ladder weighs 129 pounds?

Answer 22

35 Foot Extension - 3 Section Solid Beam

Question 23

What is the beam width of a 24-foot extension ladder?

Answer 23

3.25 inches

Question 24

What is the closed length of a 35-foot extension ladder - 2 Section Truss?

Answer 24

20 feet

Question 25

What should be done if a ladder needs to be sanded?

Answer 25

Use wet/dry type paper no coarser than 400 grit

Question 26

True or False: Ladders must pass a hardness test if the heat sensor is turned, damaged, or missing.

Answer 26

True

Question 27

What is the purpose of the 1-inch yellow tape on ladders?

Answer 27

Indicates balance point

Question 28

What is the recommended method to remove old paraffin wax from ladders?

Answer 28

Medium steel wool

Question 29

What should be used to lubricate pulleys and lock assembly pivot points?

Answer 29

White lithium grease

Question 30

What is the rung wall thickness?

Answer 30

.065 Inches