Ladders 1 Flashcards
What size hooks do the marine companies carry and what color are they painted?
12’ & 20’ portable hook ladders (fixed), painted black except for the hooks 18” at base of beam painted white.
If an aluminm ladder is subjected to excessive heat (discoloration may indicate a loss of structural strength), who do you notify?
Technical Services Division
If receipt of a spare apparatus and the ladders cannot be held securely, the _________________ shall immediately be notified by telephone and a ______________ shall be forwarded and an entry made in the ________________.
Technical Service Division/ Requisition/ Company Journal
When should temporary fastenings for ladders are used on a rig, when should they be checked?
After each response
If the officer feels a certain ladder cannot be temporarily secured on a spare apparatus in a safe manner, what should be done?
Ladder shall be left of the apparatus and an entry made in the company journal
The numerical length of a ladder shall be marked on the side of the rails within _____________ inches of the end of the ladder?
12”
The unit designation shall be marked within _________ inches of each butt end
18”
The ____–_____ degree climbing angle allows a portable ladder to provide its maximum strength and best service.
65-75 degrees
Rules for portable ladder placement:
Placed at a window
Tip shall be level with window sill
Rules for portable ladder placement:
Placed at a roof:
Tip shall be at least 2 feet above the roof or parapet
Rules for portable ladder placement:
Placed alongside a fire escape on a building wall
Tip shall be 1-3 feet above the fire escape railing
Rules for portable ladder placement:
Placed against a fire escape
Tip shall be slightly above the fire escape railing
Portable ladder capacities:
Collapsible Ladders
up to 300 pounds
Portable ladder capacities:
Roof, straight, and extenstion ladders 26’ or less
up to 500 pounds
Portable ladder capacities:
Extension ladders 27’-35’
up to 600 pounds