Construction & Components
What are the two main parts of an aerial ladder?
Beams and rungs
What does NFPA 1901 specify regarding aerial apparatus?
Design, performance, and testing standards
What is the first step after arriving at the scene with an aerial apparatus?
Position the apparatus for maximum access
What type of controls are found on the platform for operator use?
Electric over hydraulic or electronic joystick controls
Why must the aerial be cleared of ice or snow before use in winter conditions?
To prevent slipping hazards and reduce added weight
What is the base section of an aerial ladder called?
The bed section
What is the minimum tip load for an aerial ladder when not flowing water?
250 pounds
What are stabilizers designed to do?
Distribute the weight of the apparatus and prevent tipping
Why must intercom systems or headsets be used on platforms?
To maintain communication between platform and driver/operator
What should always be done before rotating an aerial ladder?
Sound the horn or alert personnel in the area
What component allows the ladder to rotate horizontally?
The turntable
What additional load must platforms be rated to support according to NFPA?
At least 750 pounds
Why is leveling the apparatus important before aerial deployment?
To prevent undue stress on the ladder or platform
What must be checked before raising a platform to a window or roof?
Ensure clearance and stability of the target area
What are escape ropes used for in aerial operations?
Emergency egress from the ladder or platform
Which type of aerial ladder uses a truss construction for added strength?
Aerial ladders with box-beam design
What structural safety factor must all aerial ladders meet?
A minimum of 2:1
What could happen if stabilizers are deployed on uneven terrain without cribbing?
Instability and potential apparatus failure
What safety device ensures a platform remains level while in motion?
Auto-leveling mechanism or leveling system
Why should aerial devices not be used as cranes unless rated?
To avoid structural damage and voiding manufacturer's warranty
What is the primary function of torque box construction in aerial ladders?
To provide maximum strength and resist twisting under load
What is the rated capacity for water delivery on an aerial ladder with a permanently mounted waterway?
At least 1000 gpm at 100 psi nozzle pressure
What is the proper sequence when raising an aerial ladder?
Raise, rotate, extend
Why should you avoid operating the platform over the front of the apparatus unless designed for it?
It may exceed weight capacity and cause front-end instability
What is the best practice when parking near overhead wires?
Maintain at least 10 feet of clearance