___ strive to minimize late-occurring design changes by formalizing the
relationship between design and manufacturing Ans✓✓✓-DFM
____ are used to represent symmetry and paths of motion and to mark centers of
circles and axes of symmetrical parts, such as cylinder and bolts Ans✓✓✓-center
lines
____ is a section view of symmetrical objects formed by passing the cutting plane
in such a manner so as to show both the interior and exterior of the object
Ans✓✓✓-half section
_______ is a subject of CAD that uses software to assist in the conceptual design
of new products. Ans✓✓✓-CAID
_________ is a data structure employed describing solid models. It stores the
model data in terms of the solid primitives and Boolean operations that used to
combine them. Ans✓✓✓-CSG ( constructive solid geometry)
__________ is a named quantity whose value can be changed. Its dimension
control size and position of model. It can also add relationships between the
others. Ans✓✓✓-constraints
a _____ is characterized by control polygon, which bounds the curve and control
points Ans✓✓✓-bezier curve
, a ______ can be used to represent analytic curves like straight lines, circles, and
other conics, it is widely adopted by surface modeling programs to model curves
and surfaces Ans✓✓✓-NURBS
a dictionary definition of ____ is to shorten by proportionately contracting in the
direction of depth so that an illusion of projection or extension in space is
obtained Ans✓✓✓-foreshorten
a mechanical note showing that a .875 in through hole with a .25 inch deep 1.125
inch diameter counterbore? Ans✓✓✓-
asme y14.1-1995 decimal inch drawing sheet size and format Ans✓✓✓-A. 8.5x11
B. 11x17
C. 17x22
D. 22x34
E. 34x44
asme y14.2-1992 line conventions and lettering Ans✓✓✓-describe the size,
spacing, construction, and application of various ones used in CAD and manual
engineering
two line widths (thick and thin) (ration 2:1)
1. thin line width: min of .3 mm
2. thick line width: min of .6 mm
asme y14.35-1997 revision of engineering drawing and associated documents
Ans✓✓✓-establishes methods for identification and recording revisions