What type of test must a mask pass before it is allowed to be used in a competition?

A mask used in fencing must undergo a visual inspection and a possible punch test before being permitted for use in competition. The visual inspection ensures that the mask is free from visible defects, such as cracks or structural weaknesses, which could compromise safety. The punch test specifically evaluates the mask's ability to withstand force, ensuring that it can adequately protect the fencer’s face during bouts.

Other answer choices may suggest various types of assessments that might not be standard for masks in the context of fencing competitions. A full physical examination or a testing for elasticity, while useful in other contexts, is not specifically required for masks. Similarly, impact resistance tests often cover broader manufacturing standards, but do not intuitively address the immediate concerns related to fencers during competition how the mask performs in practical situations. Finally, weight tests and balance evaluations, while potentially relevant for equipment, do not directly correlate with the immediate protective qualities that the punch test aims to verify.