3rd-angle multi-view mechanical drawing — projecting front, top and side views, hidden detail, full/half sections and hatching, auxiliary views, break lines, removed sections, and an introductory bolted assembly.
This block has a rectangular pocket cut into its top face. Drag the slider to move an imaginary cutting plane up and down through the block, and see which parts of that height are solid material (hatch it) versus the empty pocket (never hatch it).
Each exercise below prints as a full-scale A3 sheet — the same format used in EGD practical assessments. The reference thumbnail shows the completed drawing; redraw it full-size on paper using correct line types, projection alignment and dimensions. Use your printer's "Actual Size" setting (not "Fit to Page").