Rapid Prototyping (2181914) MCQs

MCQs of Errors in RP Processes

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1.
Which of the following are typical problems that can occur in bad STL files?
(a) Unit changing
(b) Vertex to vertex rule
(c) Degenerated facets
(d) All of the above
Answer:

Option (d)

2.
The number of faces of a proper solid defined using STL must be an _________ number.
(a) odd
(b) even
(c) fractional
(d) none of the above
Answer:

Option (b)

3.
All triangle coordinates within an STL file must be_______.
(a) negative
(b) positive
(c) zero
(d) symmetric
Answer:

Option (b)

4.
In STL files Euler’s rule for solids can be written as
(a) No. of faces – No. of edges + No. of vertices = 3 x No. of bodies
(b) No. of faces – No. of edges + No. of vertices = No. of bodies
(c) No. of faces – No. of edges + No. of vertices = 2 x No. of bodies
(d) No. of faces – No. of edges + No. of vertices = 4 x No. of bodies
Answer:

Option (c)

5.
Euler’s rule for STL files identifies the error of
(a) leaking STL files
(b) vertex to vertex rule
(c) unit changing
(d) degenerated facets
Answer:

Option (a)

6.
Which of the following can cause accuracy problems in SLA Processes?
(a) CAD/CAM induced error
(b) Laser beam width induced error
(c) Material shrinkage error
(d) All of the above
Answer:

Option (d)

7.
In STL files, a large number of facets can cause
(a) errors reduction
(b) giant data file
(c) longer part build time
(d) all of the above
Answer:

Option (d)

8.
Material shrinkage error can occur because of
(a) poor resin properties
(b) bed weather conditions
(c) poor calibration of the machine
(d) error in cad file
Answer:

Option (a)

9.
Post-processing error can be generated because of_________.
(a) poor machine setup
(b) bad weather condition
(c) internal residual stresses
(d) resin properties
Answer:

Option (c)

10.
Which of the following errors can be possible in RP processes?
(a) Pre-processing
(b) Post-processing errors
(c) Part building errors
(d) All of the above
Answer:

Option (d)

Showing 1 to 0 out of 10 Questions