Firefighter Ladders, Ropes, and Knots 2 — Questions and Answers
Question 1: What is the proper climbing angle for a ground extension ladder?
- 45 degrees
- 60 degrees
- 75 degrees (Correct answer)
- 90 degrees
Correct answer: 75 degrees
A 75-degree angle provides the safest balance between stability and ease of climbing.
Question 2: Which knot is best for hoisting a tool with a closed handle, such as an axe?
- Clove hitch with a half hitch (Correct answer)
- Bowline
- Figure-eight
- Square knot
Correct answer: Clove hitch with a half hitch
A clove hitch finished with a half hitch secures and controls long-handled tools during hoisting.
Question 3: What does the term 'beam' refer to on a ground ladder?
- The rungs you step on
- The main structural side rails (Correct answer)
- The top safety shoe
- The rope used to extend it
Correct answer: The main structural side rails
The beams are the two main side rails that support the rungs and the climber's weight.
Question 4: When raising a ladder near electrical wires, the firefighter should primarily be concerned about which type of ladder?
- Wood ladders
- Fiberglass ladders
- Aluminum (metal) ladders (Correct answer)
- Composite ladders
Correct answer: Aluminum (metal) ladders
Aluminum ladders conduct electricity and pose a severe electrocution risk near power lines.
Question 5: How far should a ladder extend above a roof line to provide a safe egress point?
- Even with the roof edge
- About 5 rungs (3-5 feet) (Correct answer)
- 10 feet
- Just below the edge
Correct 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.
Question 6: What is the purpose of a 'safety belay' when raising a ladder?
- To lubricate the rungs
- To prevent the fly section from sliding down unexpectedly (Correct answer)
- To measure the climbing angle
- To paint the beams
Correct 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.
Question 7: Which ladder is typically used to access upper floors or roofs and can be extended to varying heights?
- Roof ladder
- Extension ladder (Correct answer)
- Folding ladder
- A-frame stepladder
Correct answer: Extension ladder
Extension ladders have a base and fly section, allowing adjustable reach to upper floors and roofs.
Firefighter Ladders, Ropes, and Knots 2
What is the proper climbing angle for a ground extension ladder?