True or False: It's unnecessary to double-check the engineering drawing for hole tolerances.

Double-checking the engineering drawing for hole tolerances is essential in aerospace assembly mechanics. Tolerances define the acceptable limits of variation in physical dimensions, which are critical in ensuring parts fit together as designed. If hole tolerances are not checked, it can lead to assembly issues, misalignment of components, or even failure of the structure in operational conditions.

In aerospace applications, where safety and precision are paramount, every detail must be vetted. The engineering drawing provides specific guidance that aids in maintaining quality control throughout the assembly process. Therefore, verifying these tolerances helps prevent costly rework, delays, and potentially hazardous conditions.

While the other options suggest scenarios where checking tolerances may be deemed unnecessary, such assumptions can lead to oversight and compromise safety standards. Hence, the necessity of confirming these details stands firm irrespective of the context.