Answer :
Final answer:
A rope grab is a deceleration device in fall arrest systems that engages by friction to stop a fall. It protects users by gripping the rope tightly during a fall. This mechanism is essential for ensuring safety at heights.
Explanation:
Understanding a Rope Grab in Fall Arrest Systems
A rope grab is a critical component of a fall arrest system, which is designed to protect workers at heights from falling. Among the provided options, the correct definition is:
- A. Deceleration device that engages by friction to stop a fall in progress
A rope grab operates using a mechanism similar to a cam cleat, which uses friction to stop the rope from moving through it when a significant force, such as that from a fall, is applied. When a climber or worker experiences a sudden fall, the device engages and grips the rope tightly, effectively stopping the descent. This action is crucial for ensuring safety in dynamic situations where a fall could occur, as the rope grab will activate instantly to minimize injury.
In contrast, the other options provided are incorrect. A rope grab is not merely a different name for a lifeline, nor is it a glove or a storage device. It is specifically designed as a deceleration device to enhance fall protection strategies.
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