Which type of rope grab involves both mechanical and webbing grips?

The type of rope grab that involves both mechanical and webbing grips is indeed a rope grab. A rope grab is designed to allow for safe movement along a rope, providing the ability to ascend or descend while maintaining a secure hold. It typically uses a mechanical component to gain a grip on the rope and often incorporates webbing or other materials that can adjust to different line diameters or operational needs.

The mechanical grip ensures that the rope grab can lock in place under weight, crucial for safety during rescue operations, while the webbing grip provides flexibility and adjustability for different applications. This makes the rope grab a versatile tool in rope rescue scenarios.

In contrast, the loop and hitch are primarily types of knotting techniques focused on securing items or aiding in attachment points, not specifically involving mechanical components for gripping. A rigging plate is used for organizing and directing the force exerted on ropes during rigging and is not a device used to grab or hold onto the rope itself. Therefore, the combination of mechanical function and webbing flexibility is what distinguishes a rope grab in this context.