1.A_____ is a straigtedge which uses the edge of the drawing board as a support.
2.______ used in technical drawing are usually made of polystyrene. it is used for drawing lines and connecting points.
3.______are made of wood. plastic or celluoid some set squares also have these curse cut in the middle. Used for drawing curves which cannot being drawn with compassess.
4.A______is an implement for writing of drawing, constructed of a narrow, solid pigment core in a protective casing that prevents the core from being broken and marking the user's hand
5._______are used for drawing circles or arc segments of circles. One form has two straight leegs joined by a hinge; one leg has a sharp pivot point and the other has a holder for a techinical pen or pencil
6._______is coated with a weak, adhesive and is mainly used to fix paper to drafting boards and to hold lettering, while designing and doing layouts
7._______ like translucent drafting paper that wrinkles when wetted. it is primarily suitable for pencils and felt tip pens
8._______was formerly used for techinical drawings. it was durable and held up to handling.
9.A ______ is a specialized instrument used by an engineer, architect,of drafter to make lines of constant width for architectural, engineering, or technical drawing
10._______ piece of rubber or other material used to rub out marks made by ink, pencil, or chalk. The modern eraser is usually a mixture of an abrasive such an fine pumice, a rubbery matrix such as synthetic rubber or vinyl, and other ingredients​