Case Study 1: Navigating a Set Find the power requirement for an OR light fixture.

Case Study 2: Conflict Resolution A scaled dimension is $5'-8''$, a written plan dimension is $6'-0''$, an enlarged detail says $6'-2''$.

Basic Example: Wall Types Type A is thick solid fill, Type B is medium cross-hatch, Type C is thin empty.

Intermediate Example: Elevation Materials An elevation shows an area with horizontal lines, and another with a grid.

Advanced Example: Weld Symbol Tails A weld symbol has a forked tail containing 'CJP'.

Basic Example: Concrete Volume Calculate concrete for 12 columns: $600\text{mm}$ dia, $3.5\text{m}$ high, $5\%$ waste.

Intermediate Example: Net Wall Area A $4\text{m} \times 3.5\text{m}$ room, $2.8\text{m}$ high, with a $0.9\times2.1$ door and a $1.2\times1.2$ window. Paint area?

Advanced Example: Rebar Weight A footing has 10 pieces of $16\text{mm} \phi$ bars, each $2.0\text{m}$ long. Density of steel is $7850\text{ kg/m}^3$.