Which lift drive uses ropes for movement?

• A. Winding Drum
• B. Roped Hydraulic
• C. Direct-Plunger Hydraulic
• D. Slack-Chain Device

Answer: (B)

The key idea is identifying how motion is transmitted to lift the car, specifically through a rope-based mechanism. In a roped hydraulic drive, hydraulic pressure powers a cylinder that pulls a steel rope, which runs over pulleys and connects to the car. The actual lifting force travels through the rope, not directly through a piston or a chain. So rope movement drives the car, making this the option that uses ropes for movement.

Direct-plunger hydraulic moves the car with a hydraulic piston directly, without a rope. Slack-chain device uses a chain instead of rope. Winding drum uses a rope too, but the drive is accomplished by winding that rope around a drum driven by a motor, whereas the roped hydraulic setup explicitly uses a hydraulic actuation to move the rope itself.