The difference among the technical drawing equipment listed is as follows:
B. Paper: While compass, T square, and set square are drawing tools used to create accurate and precise geometric shapes, paper is the medium on which the drawings are created. Paper serves as the canvas or surface on which the technical drawings are made, whereas the other tools are used for measuring, drawing straight lines, and creating angles.
A. Compass: A compass is a drawing tool with two arms connected by a hinge or pivot point. It is used to draw circles, arcs, and other curved shapes with a fixed radius.
C. T Square: A T square is a technical drawing instrument with a long, straight edge and a perpendicular crosspiece that forms a T shape. It is primarily used to draw horizontal lines, vertical lines, and right angles.
D. Set Square: Set squares, also known as triangles, are triangular-shaped tools with precise angles, usually 30°, 45°, or 60°. They are used to draw and measure angles, create parallel lines, and construct geometric shapes.
Therefore, the answer is B. Paper, as it is not a drawing tool but the medium on which the technical drawings are created.