True or False: You must verify that the pressure has been drained from the system before starting work if tags are hung.

Verifying that the pressure has been drained from a system before starting work, especially when tags are hung for safety, is a fundamental safety protocol in engineering and industrial practices. The presence of tags indicates that a system is under maintenance or repair, and it is crucial to ensure that it is safe to begin work. This process involves checking for residual pressure or any potential hazards that could lead to accidents or injuries.

By ensuring that the pressure has been properly released, workers mitigate the risk of unexpected pressurization during maintenance, which can cause severe injuries or equipment damage. Therefore, the correct approach is to first ascertain that all potential energy sources, such as pressure within the system, are neutralized before proceeding with any maintenance activities. This is a standard safety measure intended to protect personnel and equipment.