IMSE 250 FINAL UPDATED ACTUAL Exam Questions and CORRECT Answers
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Course
IMSE 250
Institution
IMSE 250
IMSE 250 FINAL UPDATED ACTUAL
Exam Questions and CORRECT Answers
Composite material is a(n) ___________ solid consisting of two or more different materials
bonded together.
(A) uniform(B) non-uniform - CORRECT ANSWER- (B) non-uniform
Which one of following product (market) may NOT be a good...
IMSE 250 FINAL UPDATED ACTUAL
Exam Questions and CORRECT Answers
Composite material is a(n) ___________ solid consisting of two or more different materials
bonded together.
Which one of following product (market) may NOT be a good fit for additive
manufacturing?(A) Personalizedphone case.(B) Highly individualized healthcare product.(C)
Plastic clothes hangers.(D) Measuring gauges for a concept car. - CORRECT ANSWER-
✔✔C) Plastic clothes hangers.
(1) According to the definitionof composite material, is a clear glass panel(assuming pure
SiO2) consideredcomposite material?Why? (2 pts) - CORRECT ANSWER- ✔✔Yes or
NoReason: Not a combination of two or more differentmaterials.
Fiber:
Matrix - CORRECT ANSWER- ✔✔To support load
To hold fibers in position, to protect fibers, and to transfer load to fibers
"A photopolymerization process used to produce parts from photopolymer materials in a
liquid state using one or more lasers to selectively cure to a predetermined thickness and
harden the material into shape layer upon layer." This sentence is describing which additive
manufacturing processes?(A) Stereolithography.(B) Selective laser sintering.(C) Fused
deposition modeling(D) Contour Crafting - CORRECT ANSWER- ✔✔(A)
Stereolithography.
6) (6) In which type of semiconductor material there is a shortage of electrons, i.e. there are
"holes" in the crystal lattice?(A) N-type.(B) P-type. - CORRECT ANSWER- ✔✔(B) P-type.
(7) When put additive manufacturingprocesses into these following four categories, Laser
Engineered Net Shaping (LENS)belongs to which one?(A) Extrusion based.(B) Liquid
based.(C) Powder based.(D) Hybrid processes. - CORRECT ANSWER- ✔✔(C) Powder
based.
,Please judge: "Certain amount of material will be removed from the workpiecein
machining."(A) This statement is true for all machining processes (including conventional
and nontraditional processes).(B) This statement is false for all machining processes
(including conventional and nontraditional processes).(C) This statement is true for some
machining processes, but false for other machining processes. - CORRECT ANSWER-
✔✔(A) This statement is true for all machining processes (including conventional and
nontraditional processes).
According to Richard Smalley (1996 Noble Laureate in Chemistry), what is the humanity's
top one problem during next 50 year? (A) Energy.(B) Water.(C) Food. (D) Terrorism & War.
(E) Population. - CORRECT ANSWER- ✔✔(A) Energy.
Regarding the world energy use today, which type on the following list has the highest
percentage? (A) Renewable Energy (B) Natural gas. (C) Coal.(D) Petroleum.(E) Nuclear. -
CORRECT ANSWER- ✔✔D) Petroleum.
Between laptop computer and toaster, which one uses about 1000 times more energy than the
other? (A) Laptop computer.(B) Toaster. - CORRECT ANSWER- ✔✔(B) Toaster.
What is the power to run today's world? ___ - CORRECT ANSWER- ✔✔___14.5 TW___
Regarding the renewable energy use today, which type on the following list has the highest
percentage? (A) Solar. (B) Hydroelectric. (C) Traditional biomass. (D) Geothermal.(E)
Ethanol. - CORRECT ANSWER- ✔✔C) Traditional biomass.
As projected in the video "Energy outlook 2035", which energy form will be the fastest
growing fossil fuel worldwide? (A) Petroleum.(B) Coal.(C) Natural gas. - CORRECT
ANSWER- ✔✔(C) Natural gas.
Theoretically, the power generated from the wind by a turbine increases __________ (A.
linearly, B. quadratically, or C. cubically) with wind velocity. - CORRECT ANSWER- ✔✔C.
cubically
What are the two major ways to utilize solar energy - CORRECT ANSWER- ✔✔Solar
thermal 2 ________________. Solar photovoltaic
, Which one of the following is not part of the reasons for the price decrease of semiconductor
chips
A Competition among chip manufacturers
B Use of wafer technology
C Decrease of feature size
D Increase of wafer size
E Use of new semoconductor materials other than silicon - CORRECT ANSWER- ✔✔Use of
new semoconductor materials other than silicon
Now the diameter of silicon wafer in the main marker is around - CORRECT ANSWER-
✔✔300mm
Silicon is the only material used in semiconductor industry - CORRECT ANSWER-
✔✔False
Moore's law states that the number of transistors on chip doubles every - CORRECT
ANSWER- ✔✔1.5years
What is the machine to do wafer slicing
A wire electro-discharge machine (EDM)
Choose from lapping and grinding, which one use fixed abrasives
A Lapping
BGrinding - CORRECT ANSWER- ✔✔BGrinding
Subsurface damages exist after lapping process - CORRECT ANSWER- ✔✔True
The abrasive particles used in polishing process are ------than those used in lapping
A Smaller
B Larger - CORRECT ANSWER- ✔✔A Smaller
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