IMSE Exam 2 Questions with
Complete Solutions8
Which one of the following is NOT one of the assumptions of the orthogonal cutting model?
A. The cutting tool if perfectly sharp
B. The rake angle is positive
C. The uncut chip thickness is constant
D. There are no segmented chips generated - ANSWERS-B. The rake angle is positive
Which one of the following two structures is more likely to be polylactic acid (PLA)
thermoplastic? - ANSWERS-Jumbled arrangement
Which plastic materials are more difficult to be recycled or reused? - ANSWERS-Thermosets
If you need to box some leftover dinner for lunch at school and want to reheat in a microwave,
plastic container with which recycling code is the best to use? - ANSWERS-5 PP
Which plastic materials in general are less rigid than the other? - ANSWERS-Thermoplastics
Single point cutting involves the removal of metal from a work piece using cutting tools that
only have one primary cutting edge. Which of the following operations is NOT a single point
cutting process?
A. Cylindrical turning on a lathe
B. Internal boring on a lathe
C. Thread cutting on a lathe
, D. Drilling a hole using a twist drill on a lathe - ANSWERS-D. Drilling a hole using a twist drill on a
lathe
In a cylindrical turning operation shown on the right, if the initial diameter before machining is
35 mm and final diameter after machining is down to 31 mm, what is the depth of cut? -
ANSWERS-2 mm
In a cylindrical turning operation shown on the right, the cutting speed is ____ mm/min -
ANSWERS-35 x pi x 50
Which one of the following proposed method typically CANNOT improve the surface quality of
the machined surface (other process parameters stay unchanged expect the one mentioned in
the choices)?
A. Increase cutting speed
B. Increase feedrate
C. Apply cutting fluid - ANSWERS-B. Increase feedrate
Which angle in this figure is called clearance angle? - ANSWERS-B
Generally speaking, the ___ the rake angle, the sharper the cutting edge will become, and in the
meanwhile the cutting tool will become less rigid.
A. Larger
B. Smaller
C. Not directly related - ANSWERS-A. Larger
For a given uncut chip thickness and rake angle, a larger shear angle means a ______ cutting
force.
A. Higher
B. Lower
Complete Solutions8
Which one of the following is NOT one of the assumptions of the orthogonal cutting model?
A. The cutting tool if perfectly sharp
B. The rake angle is positive
C. The uncut chip thickness is constant
D. There are no segmented chips generated - ANSWERS-B. The rake angle is positive
Which one of the following two structures is more likely to be polylactic acid (PLA)
thermoplastic? - ANSWERS-Jumbled arrangement
Which plastic materials are more difficult to be recycled or reused? - ANSWERS-Thermosets
If you need to box some leftover dinner for lunch at school and want to reheat in a microwave,
plastic container with which recycling code is the best to use? - ANSWERS-5 PP
Which plastic materials in general are less rigid than the other? - ANSWERS-Thermoplastics
Single point cutting involves the removal of metal from a work piece using cutting tools that
only have one primary cutting edge. Which of the following operations is NOT a single point
cutting process?
A. Cylindrical turning on a lathe
B. Internal boring on a lathe
C. Thread cutting on a lathe
, D. Drilling a hole using a twist drill on a lathe - ANSWERS-D. Drilling a hole using a twist drill on a
lathe
In a cylindrical turning operation shown on the right, if the initial diameter before machining is
35 mm and final diameter after machining is down to 31 mm, what is the depth of cut? -
ANSWERS-2 mm
In a cylindrical turning operation shown on the right, the cutting speed is ____ mm/min -
ANSWERS-35 x pi x 50
Which one of the following proposed method typically CANNOT improve the surface quality of
the machined surface (other process parameters stay unchanged expect the one mentioned in
the choices)?
A. Increase cutting speed
B. Increase feedrate
C. Apply cutting fluid - ANSWERS-B. Increase feedrate
Which angle in this figure is called clearance angle? - ANSWERS-B
Generally speaking, the ___ the rake angle, the sharper the cutting edge will become, and in the
meanwhile the cutting tool will become less rigid.
A. Larger
B. Smaller
C. Not directly related - ANSWERS-A. Larger
For a given uncut chip thickness and rake angle, a larger shear angle means a ______ cutting
force.
A. Higher
B. Lower
