Which of the following is a type of aerial device?

• A. Aerial Ladder
• B. Hydraulic Ladder
• C. Telescoping Boom
• D. Scissor Lift

Answer: (A)

In firefighting, an aerial device is a vehicle-mounted tool that provides elevated reach for access, rescue, and operations at height. The aerial ladder is the classic example: a long ladder attached to the apparatus that can be extended, directed, and stabilized from the ground to reach upper floors, ventilate roofs, or perform rescues. It embodies the essential ladder-based access function firefighters rely on during high-rise and vertical operations.

The other options describe different elevating equipment that isn’t the standard ladder-type aerial device. A term like hydraulic ladder isn’t a recognized fire-service category. A telescoping boom refers to a long, extendable arm used on some platforms but isn’t the traditional ladder design. A scissor lift is an elevating work platform used mainly for industrial tasks and isn’t typically considered a fire-service aerial device.