Stops the lift if hoisting rope becomes slack.

• A. Slack-Rope Device
• B. Data Plate
• C. Capacity Sign
• D. Hinged Track

Answer: (A)

Stopping the lift when the hoisting rope becomes slack is handled by a safety device designed to sense loss of rope tension and immediately halt movement. The Slack-Rope Device monitors the tension on the hoisting rope and, if it detects slack beyond a safe limit, it stops the drive or engages the brake to prevent uncontrolled motion or a potential fall. This function is all about maintaining control when rope tension changes, which is why this device is the correct choice.

The other items aren’t involved in automatically stopping the lift due to rope slack: a data plate is just a label with specifications, a capacity sign communicates load limits, and a hinged track is a structural component of the guide system.