Name ________________________________Date _____________Class_______________ Basic Lines Worksheet 1 Directions Draw the type of line in the box provided that matches the description and purpose of the line. Type of Line Description Purpose Object line is a line that To show visible shape of a is thick and solid. part. Hidden line is a broken To show edges and line of medium outlines not visible to the thickness. eye. Center line is a fine, To show the center of broken line made up of a circles, arcs, and series of short and long symmetrical objects, and dashes alternately to aid in dimensioning spaced. these parts. Extension line is a fine line that extends from Extension line shows the object with a slight dimensioning points. between the object and line. Dimension line touches Dimension line is a fine the extension line and line with arrowheads, shows distance given by unbroken except where the dimension. the dimension is placed. To point directly to a Leader line is a fine, surface for the purpose of straight line with an dimensioning or adding a arrowhead or solid note; a dot may be used at dot at one end. It is the end of the straight line usually drawn at an where reference is made angle. to a surface area.
Name ________________________________Date _____________Class_______________ Basic Lines Worksheet 1 Directions Draw the type of line in the box provided that matches the description and purpose of the line. Type of Line Description Purpose Object line is a line that is thick and solid. To show visible shape of a part. Hidden line is a broken line of medium thickness. To show edges and outlines not visible to the eye. Center line is a fine, broken line made up of a series of short and long dashes alternately spaced. To show the center of circles, arcs, and symmetrical objects, and to aid in dimensioning these parts. Extension line is a fine line that extends from the object with a slight between the object and line. Dimension line is a fine line with arrowheads, unbroken except where the dimension is placed. Extension line shows dimensioning points. Dimension line touches the extension line and shows distance given by the dimension. Leader line is a fine, straight line with an arrowhead or solid dot at one end. It is usually drawn at an angle. To point directly to a surface for the purpose of dimensioning or adding a note; a dot may be used at the end of the straight line where reference is made to a surface area.
Basic%20Lines%20Worksheet%201_0.docx