Which crane type is noted for four-wheel steering and is driven from a single cab?

• A. Rough terrain cranes (RT)
• B. All-terrain cranes (AT)
• C. Crawler cranes
• D. Tower cranes

Answer: (A)

Four-wheel steering improves maneuverability on rough, uneven surfaces and helps a crane turn in tight spaces on a job site. Rough-terrain cranes use a four-wheel-drive, four-wheel-steering undercarriage and are typically operated from a single cab that controls both movement and lifting functions. This combination—four-wheel steering and a single driving cab—is a defining setup for RT cranes, making them well-suited to off-road work where you need to position the crane precisely before lifting.

Crawler cranes ride on tracks and steer by varying track speed rather than steering wheels, so they don’t rely on four-wheel steering. Tower cranes are fixed in place and not driven, so they don’t involve any driving from a cab. All-terrain cranes are mobile and versatile but aren’t specifically defined by four-wheel steering from a single cab in the way rough-terrain cranes are.