1. Name six common assumptions the sketcher will make.
Ans: Six common assupmption the sketcher will make are as
follows - Horizontal and vertical, equal length lines, equal radius or
diameter, co-linearity, 90 and 180 degree arcs, points on the same horizontal
or vertical, points on other entities, tangency, symmetry, parallel and
perpendicular lines.
2. What is the difference between One Side and Both Sides in
extrusion?
Ans: One-side extrudes only one specified direction from the
sketching plane. Both sides extrudes both sides of the sketching planes.
3. How do you change dimensions of a feature?
Ans: Modify > pick the feature > pick the dimension
> enter the new value > select regenerate.
4. What is the model tree?
Ans: The model tree is a graphical representation of the
features and/or components in the model.
5. Define "Parametric Feature Based Modeling" ?
Ans: Parametric means driven by parameters. Feature based
means you define a series of instructions (features) to tell the system your
design intent. Modeling means creating computer images coupled with geometric
information defining a part or assembly.
6. What is datum planes created ‘on the fly’?
Ans: The datum plane created on the fly means it was created
when you were in the middle of creating something else and it goes away after
the thing you really wanted was created. These are created using the 'make
datum' command.
7. List five uses of datum planes.
Ans: Five uses of
datam plane are as follows - Sketching plane, reference plane, dimension and
alignment references, geometric tolerancing, creating cross sections.
8. List three uses of datum axes.
Ans: Three uses of datum axes are as follow - Dimension and
alignment references, centerlines on drawings, geometric tolerancing, coaxial
hole.
9. List two uses of a datum coordinate system.
Ans: Datum coordinate systme is used While exporting to iges
and stl.
10. Name a feature that can both add and remove material.
Ans: Rounds and chamfers are the features which can both add
or remove the material.