AOTM LP 20 & 21 Flashcards
Spotting Considerations:
• ____________
• ____________
• ____________
• Stability
• Overhead wires & obstructions
• Grades
_________ _________ - Ties the tractor to the rear axle and passes the load change directly to the tires
Spring Locks
Best Climbing Angle:
• ___ to ___ degrees
• 70 to 80
Best Climbing Angle:
• Proper placement for maximum stability and preferred climbing angle is a matter of ____________ & _____________
Experience
Good Judgment
Distance Consideration:
Downtown Areas Confronted with 2 situations:
• Spot close to curb. Curbs are usually __ feet form building
• Spot outside of parking line
11
Where the spot can be made next to the curb, the aerial ladder operator knows that he can operate between the __th and __th floors and maintaining between ___ to ___ degrees
5th
8th
70 to 80
Any operation below the __th floor will result in climbing angles of less than ___ degrees
5th
70
Where the spot is made outside of the line of cars, any operation below the __th floor wil be conducted at a climbing angle of less than ___
5th
70
It is not unusual to see aerial ladder operations in the downtown area conducted with climbing angles considerably less than ___ degrees
70
Steep Inline:
• Aerial ladder does not allow for _____ stress
Side
Steep Incline:
•Aerials are strongest with a load applied _______________ to the rungs
Perpendicular
Steep Incline:
• Rungs are considered ________ any time they are not parallel with the horizontal pane of the earth
Tilted
The tilt with a 45-degree will be _______ as great as the tilt at a 90-degree angle
One-half
Spotting Up Hill:
- If headed uphill, the operator should stop short of the intended point & throw the ladder uphill. 2 primary reasons:
• Rung Tilt will be _________
• Aerial is more ________
Reduce
Stable
Jack-Knife:
The ideal angle is about ___ degrees from the in-line position, and away from the direction of ladder extension. This is called an outside jack-knife
60
