Final answer:
Christmas treeing, or multiple lift rigging, is a common term in the rigging industry. It involves attaching multiple pieces to a single lifting device and, when done correctly, is a safe and effective technique. It doesn't necessarily require additional personnel if the team is experienced.
Step-by-step explanation:
Multiple lift rigging, also known as Christmas treeing, is a common industry term in the field of rigging and lifting operations. This technique involves attaching multiple pieces of equipment or materials to a single lifting device. Unlike the name suggests, it has nothing to do with decorating the worksite for the holiday season. It is a safe and effective method when handled properly, but like all rigging practices, it requires a trained, professional team to carry out. Extra personnel may not be necessary if the team is experienced and well-coordinated.
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