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IMSE 250 Exam 2 Review Questions and Answers
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IMSE 250 Exam 2 Review Questions and Answers
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IMSE 250 Exam 2 Review Questions andAnswers
A turning machine (lathe) is a very versatile tool, what operation processes can be done
on a lathe (suppose you have the correct cutting tools)? - ANSWER-1. Straight and
Taper Turning
2. Contour Turning or Profiling
3. Forming (material removal)
4. Chamfering
5. Thread chasing
6. Hole making (Drilling and Boring)
7. Facing
8. Grooving and parting
Abrasive machining mechanism is a combination of ___________ , ___________, and
__________. - ANSWER-cutting, plowing, rubbing
According to the chart "Tool materials over time", (what factor) _________ is the main
driving force to the development of new cutting tool materials?
a. Productivity
b. Hardness and toughness
c. Life span
d. Cost - ANSWER-a. Productivity
According to the video "cool chips", when the cutting fluid is applied into cutting zone,
many things will happen. Which one of the following will NOT happen?
a. The shear angle increases.
b. Cutting temperature decreases.
c. Built-up edge (BUE) disappears.
d. Power consumption increases. - ANSWER-d. Power consumption increases.
Before the procedure, the patient will receive a type of anesthesia (Anesthesia is
medication to block the awareness of pain). In order to reduce the pain as much as
possible, a biopsy needle has a __________ rake angle
a. large positive
b. large negative
c. zero - ANSWER-a. large positive
Between the two common abrasive materials (aluminum oxide and silicon carbide),
__________ is primarily used to grind ferrous materials, and __________ is a go-to
option for non-ferrous metal grinding.
a. aluminum oxide; silicon carbide.
b. silicon carbide; aluminum oxide
c. they are interchangeable - ANSWER-a. aluminum oxide; silicon carbide.
, Both Ultrasonic Machining (USM) and Rotary Ultrasonic Machining (RUM) are
mechanical nontraditional machining processes (material removal is realized by
mechanical impacts). T or F? - ANSWER-T
Carbide cutting speed is ___________ times higher than HSS - ANSWER-4 to 5
Casting, forging, and rolling are material processing methods mainly used at the stage
of __________ manufacturing.
a. primary
b. secondary - ANSWER-a. primary
Ceramics cutting speed is ___________ times higher than Carbides - ANSWER-2 to 3
Cubic boron nitride (CBN) and polycrystalline diamond (PCD) are two superabrasives.
__________ is used for machining ferrous materials, and __________ is used for
machining non-ferrous materials.
a. Cubic boron nitride (CBN); Polycrystalline diamond (PCD)
b. Polycrystalline diamond (PCD); Cubic boron nitride (CBN) - ANSWER-a. Cubic boron
nitride (CBN); Polycrystalline diamond (PCD)
Cutting speed (V) = __________________ - ANSWER-(pi)*D*N
Diamond is mainly used for cutting ________, _________, ________, and ________ -
ANSWER-aluminum, bronze, plastics, ceramics
EDM has several benefits. Which one of the following is NOT among these benefits?
a. No cutting forces (due to no contact).
b. Burr-free edges.
c. Intricate (complex) details can be cut.
d. The tool never wears. - ANSWER-d. The tool never wears.
Generally speaking, a decrease in cutting speed will ________ the tool life (assume
other process parameters stay unchanged).
a. increase
b. decrease
c. not affect - ANSWER-a. increase
Generally speaking, the _______ the rake angle, the sharper the cutting tool is, thus
cuts easier.
a. larger
b. smaller - ANSWER-a. larger
Grain size, bond type, and pore size all affect grinding wheel performance. Which one
of the following is NOT true?
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