Ladders, Ropes, and Knots Flashcards

What is the proper climbing angle for a ground extension ladder?

Answer: 75 degrees

A 75-degree angle provides the safest balance between stability and ease of climbing.

Which knot is best for hoisting a tool with a closed handle, such as an axe?

Answer: Clove hitch with a half hitch

A clove hitch finished with a half hitch secures and controls long-handled tools during hoisting.

What does the term 'beam' refer to on a ground ladder?

Answer: The main structural side rails

The beams are the two main side rails that support the rungs and the climber's weight.

When raising a ladder near electrical wires, the firefighter should primarily be concerned about which type of ladder?

Answer: Aluminum (metal) ladders

Aluminum ladders conduct electricity and pose a severe electrocution risk near power lines.

How far should a ladder extend above a roof line to provide a safe egress point?

Answer: About 5 rungs (3-5 feet)

Extending about 3-5 feet (roughly five rungs) above the roof gives a stable handhold for climbing on and off.

What is the purpose of a 'safety belay' when raising a ladder?

Answer: To prevent the fly section from sliding down unexpectedly

A belay or guard secures the halyard so the fly section cannot drop after being extended.

Which ladder is typically used to access upper floors or roofs and can be extended to varying heights?

Answer: Extension ladder

Extension ladders have a base and fly section, allowing adjustable reach to upper floors and roofs.