The aerial apparatus should be leveled using the levelers starting with the low side then moving to the high side.

• A. Not Applicable
• B. Depends on Manufacturer
• C. False
• D. True

Answer: (D)

Stabilizing the aerial apparatus on a level plane is essential for safe ladder operation. Begin with the side that sits lowest and raise those levelers first. Elevating the low side brings the chassis toward level without letting the opposite side drop more or the unit tilt unpredictably. Once that side is leveled, adjust the remaining high-side levelers to finish achieving a level stance. This sequence helps keep the center of gravity within the support footprint during leveling and reduces the risk of tipping or ladder movement as you operate the apparatus. This is standard practice on aerial units and not typically dependent on the manufacturer; you level first on the lower side, then on the higher side to reach a safe, level platform.