What must all pages in an engineering notebook be?

All pages in an engineering notebook need to be numbered and written in ink. Numbering helps maintain a clear sequence and organization within the notebook, which is crucial for tracking the progression of projects and ideas. This organization is especially important when revisiting past work or presenting findings to others.

Writing in ink ensures that entries are permanent and cannot be easily altered or erased. This feature is essential for maintaining the integrity of the documentation, as it provides a reliable record of the engineering process, including sketches, calculations, and notes. The use of ink also promotes a professional appearance and credibility, which is important in engineering practices and competitions.

In contrast, using pencil for entries could allow for modifications or deletions, raising concerns about the authenticity of the recorded work. Similarly, while numbering and potentially signing pages adds to documentation rigor, ink is the key requirement for ensuring that the contents are permanent and trustworthy.