| | Genuine Manual | Fake/Scanned Copy | | --- | --- | --- | | Format | Professionally typeset (LaTeX or MS Word) | Blurry handwritten or low-res JPEGs | | Steps | Full step-by-step reasoning | Only final answers | | Figures | Clear T-s and P-h diagrams | Missing or illegible | | Page numbers | Matches textbook numbering | Random pages, missing sections | | Unit consistency | Uses SI units consistently | Mixed units, often errors |
