All of the following are guidelines for maintaining an engineering notebook except a) all entries b) keeping it in a safe place when not in use c) numbering pages at the bottom inside corner d) no pages are ever removed from the notebook

C) numbering pages at the bottom inside corner

An Engineering notebook is a legal document made of bound, grid paper where engineers formally document written ideas, sketches, work session summaries, research findings and interview information in chronological order.

When not in use, the notebook should be stored in a safe location with each page dated and signed.

There will absolutely no situation where a page is removed.

All entries should start at the top of each page and ending at the bottom. Supporting material should be permanently affixed.  

Book pages should be numbered on the top right side of the page.  

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.