Which of the following is NOT an example of an additive manufacturing process?
a) Stereolithography (SLA)
b) Laminated Object Manufacturing (LOM)
c) Fused Deposition Modeling (FDM)
d) Selective Laser Sintering (SLS)
e) All of the above are examples of additive manufacturing processes.
2. Which of the following is NOT a benefit of additive manufacturing?
a) Geometrical design freedom
b) Anisotropic properties due to effects of layer stacking
c) Maximum material savings
d) Reduction of development times
e) For some processes, full or near full-density of functional parts.
3. The pattern that determines the geometry of the casting in expendable mold processes is usually made oversized, the same size, or undersized relative to the dimensions of the casting.
4. A misrun is which one of the following defects in casting?
a) Globules of metal becoming entrapped in the casting
b) Metal is not properly poured into the downsprue
c) Metal solidifies before filling the cavity
d) Microporosity
e) None of the above.
5. Bulk density is less than, greater than, or equal to the true density.