Chapter:

86. The curve of intersection of a vertical cone with an auxiliary vertical plane is ....................


87. When a line is perpendicular to a reference plane, its projection on plane to which it is perpendicular is ....................


88. Horizontal plane and vertical plane are always ....................


89. Isometric projection of a sphere is a circle having a diameter ....................


90. The angle between isometric axes is ....................


91. In isometric projection, circles are represented as ellipse on ....................


92. The drawing prepared by a pencil without use of drawing instrument is called ....................


93. The drawing provided by client for tender work to contractor is known as ....................


94. In isometric projection, dimension lines are drawn ....................


95. The point if intersection of co-ordinate axis is called ....................


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