Machining/Welding Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is machining? - CORRECT ANSWER Term used to describe material removal
What does the machining system consist of? - CORRECT ANSWER 1. workpiece
2. cutting tool
3. tool holder
4. work holding devices
5. machining tool
What kind of cutting tools are there? - CORRECT ANSWER single point and multi
point
What are the different processes of cutting tools? - CORRECT ANSWER 1. Turning
(Single point)
2. Drilling (multi-point)
3. Tapping (multi-point)
4. Sawing (multi-point)
What are the kind of Abrasive Processes? - CORRECT ANSWER 1. Grinding
2. Honing
3. Ultrasonic machining
What are the kind of advanced machining processes? - CORRECT ANSWER 1.
Electrical
2. chemical
3. thermal energy
,4. AND combination of them all (for material removal)
What are the main machining processes desired in manufacturing? - CORRECT
ANSWER 1. Dimensional Accuracy
2. Geometric features
3. Finishing
4. Surface texture
5. Economical motivation
What are the machine process limitations? - CORRECT ANSWER 1. Waste Material
2. Time
3. Surface integrity
What are the common machine processes? - CORRECT ANSWER 1. Straight Turning
2. cutting off
3. Slab milling
4. End milling
What is a Lathe Operation in machine processing? - CORRECT ANSWER When the
workpiece rotates while a single-point cutting tool removes material to produce cylindrical
shapes.
What type of forces are in cutting tools in turning? - CORRECT ANSWER Fc =
cutting force
Ft = feed force (Thrust)
Fr = radial force
What is the relationship between a cutting edge angle and its strength vs. chipping tendency -
CORRECT ANSWER The bigger the angle the more prone it is to chipping and the
less strength it has
, Independent or dependent variable?
A cutting tool - CORRECT ANSWER Independent
Independent or dependent variable?
Type of chip produced - CORRECT ANSWER dependent
Independent or dependent variable?
tool shape, surface finish, and sharpness - CORRECT ANSWER independent
Independent or dependent variable?
Force required and energy dissipated - CORRECT ANSWER Dependent
Independent or dependent variable?
Material and temperature used - CORRECT ANSWER independent
Independent or dependent variable?
temperature rise throughout the process - CORRECT ANSWER dependent
Independent or dependent variable?
characteristics in stiffness and damping
tool holders - CORRECT ANSWER independent
surface finish/ integrity of workpiece after machined - CORRECT
ANSWER dependent
if surface finish is bad, what should be fixed first? - CORRECT ANSWER The cutting
SPEED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is machining? - CORRECT ANSWER Term used to describe material removal
What does the machining system consist of? - CORRECT ANSWER 1. workpiece
2. cutting tool
3. tool holder
4. work holding devices
5. machining tool
What kind of cutting tools are there? - CORRECT ANSWER single point and multi
point
What are the different processes of cutting tools? - CORRECT ANSWER 1. Turning
(Single point)
2. Drilling (multi-point)
3. Tapping (multi-point)
4. Sawing (multi-point)
What are the kind of Abrasive Processes? - CORRECT ANSWER 1. Grinding
2. Honing
3. Ultrasonic machining
What are the kind of advanced machining processes? - CORRECT ANSWER 1.
Electrical
2. chemical
3. thermal energy
,4. AND combination of them all (for material removal)
What are the main machining processes desired in manufacturing? - CORRECT
ANSWER 1. Dimensional Accuracy
2. Geometric features
3. Finishing
4. Surface texture
5. Economical motivation
What are the machine process limitations? - CORRECT ANSWER 1. Waste Material
2. Time
3. Surface integrity
What are the common machine processes? - CORRECT ANSWER 1. Straight Turning
2. cutting off
3. Slab milling
4. End milling
What is a Lathe Operation in machine processing? - CORRECT ANSWER When the
workpiece rotates while a single-point cutting tool removes material to produce cylindrical
shapes.
What type of forces are in cutting tools in turning? - CORRECT ANSWER Fc =
cutting force
Ft = feed force (Thrust)
Fr = radial force
What is the relationship between a cutting edge angle and its strength vs. chipping tendency -
CORRECT ANSWER The bigger the angle the more prone it is to chipping and the
less strength it has
, Independent or dependent variable?
A cutting tool - CORRECT ANSWER Independent
Independent or dependent variable?
Type of chip produced - CORRECT ANSWER dependent
Independent or dependent variable?
tool shape, surface finish, and sharpness - CORRECT ANSWER independent
Independent or dependent variable?
Force required and energy dissipated - CORRECT ANSWER Dependent
Independent or dependent variable?
Material and temperature used - CORRECT ANSWER independent
Independent or dependent variable?
temperature rise throughout the process - CORRECT ANSWER dependent
Independent or dependent variable?
characteristics in stiffness and damping
tool holders - CORRECT ANSWER independent
surface finish/ integrity of workpiece after machined - CORRECT
ANSWER dependent
if surface finish is bad, what should be fixed first? - CORRECT ANSWER The cutting
SPEED
