What does the cutting-plane line represent? List and explain seven different types of sections. What type of line is used to show the boundary of a broken out section? How much of an object is imagined to be cut away in a half section? Solution 1) Generally the cutting-plane line represents the edge view of the cutting plane, in order to show the inside features of the object. The viewing direction is represented by arrows. 2) Seven different type of sections: i) Full section, ii) Half section iii)Broken-out section iv) Revolved sections v) Removed sections vi) Offset sections vii) Aligned sections. 3) A short-break line is used to show the boundary of a broken-out section 4) A quarter of the object (1/4th) is imagined to be cut away in a half section..