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Production Engineering
Comments
Question
When the cutting edge of the tool is dull, then during machining
Options
A. continuous chips are formed
B. discontinuous chips are formed
C. continuous chips with built-up edge are formed
D. no chips are formed
Correct Answer
continuous chips with built-up edge are formed
Production Engineering problems
Search Results
1. Which of the following statement is wrong about ultra-sonic machining?
Options
A. It is best suited for machining hard and brittle materials.
B. It cuts materials at very slow speeds.
C. It removes large amount of material.
D. It produces good surface finish.
Show Answer
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Discuss
Correct Answer: It removes large amount of material.
2. The rake angle required to machine brass by high speed steel tool is
Options
A. 0°
B. 10°
C. 20°
D. -10°
Show Answer
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Discuss
Correct Answer: 0°
3. Cemented carbide tool tips are produced by powder metallurgy.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
4. The facing is an operation of
Options
A. bevelling the extreme end of a workpiece
B. embossing a diamond shaped pattern on the surface of a workpiece
C. reducing the diameter of a workpiece over a very narrow surface
D. machining the ends of a workpiece to produce a flat surface square with the axis
Show Answer
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Correct Answer: machining the ends of a workpiece to produce a flat surface square with the axis
5. In orthogonal cutting system, the maximum chip thickness occurs at the middle.
Options
A. Correct
B. Incorrect
Show Answer
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Discuss
Correct Answer: Correct
6. The different spindle speeds on a lathe form
Options
A. arithmetical progression
B. geometrical progression
C. harmonical progression
D. any one of these
Show Answer
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Discuss
Correct Answer: geometrical progression
7. A single point thread cutting tool should ideally have
Options
A. zero rake angle
B. positive rake angle
C. negative rake angle
D. point angle
Show Answer
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Discuss
Correct Answer: zero rake angle
8. The angle included between the two lips projected upon a plane parallel to the drill axis and paralled to the two cutting lips, is called helix angle.
Options
A. Correct
B. Incorrect
Show Answer
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Correct Answer: Incorrect
9. The method of grinding used to produce a straight or tapered surface on a workpiece, is
Options
A. internal cylindrical grinding
B. form grinding
C. external cylindrical grinding
D. surface grinding
Show Answer
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Discuss
Correct Answer: external cylindrical grinding
10. Side rake angle on tools is provided to control chip flow.
Options
A. True
B. False
Show Answer
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Correct Answer: True
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