QUESTIONS AND ANSWERS
How to draw lines - ANS left-> right top-> bottom
bounding box - ANS square used to help draw circles
construction lines - ANS used to help draw shapes and drawn very lightly.
isometric grid paper - ANS Paper used for sketching purposes that includes grid lines at 120
degrees relative to one another
isometric pictorials - ANS don't show hidden edges/lines. Draw arcs to show holes
oblique pictorials - ANS special grids are not required. Shapes in the plane of paper appear
normally. receding dimension length is not important.
isometric drawing - ANS width, height, and depth are 120 degrees apart
dimetric drawing - ANS two angles are equal
trimetric drawing - ANS no angles are equal.
step blocks - ANS defined and drawn with isometric lines
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, oblique surfaces - ANS Surfaces or lines that are positioned at an angle with respect to all the
principal planes of projection are oblique. Never appear in true size.
oblique drawings - ANS distorted. Can come as cavalier or cabinet.
cavalier - ANS true depth length is measured along the receding axes
cabinet - ANS receding axis is half of the true length.
Perspective Drawing - ANS looks photographic
Multiview Representation - ANS shows many views of the same 2D image
Glass-Box Views - ANS Clear box, open box used to look at multiview drawings.
preferred configuration - ANS includes the front, top, and right views.
centerlines - ANS They go through the center of the holes.
Centermark - ANS dot in the middle of the hole.
First-Angle Projection - ANS The form of projection where the front view is located above the
top view. Viewing plane is behind the object.
axonometric aberration - ANS everything in parallel causes optical illusion. circles are shown
as ellipses.
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