Discussion
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- Question
The chamfering 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. enlarging the end of a hole cylindrically
- Correct Answer
- bevelling the extreme end of a workpiece
- 1. Mild steel during machining produces __________ chips.
Options- A. continuous
- B. discontinuous Discuss
- 2. In oblique cutting system, the tool may or may not generate a surface parallel to the workface.
Options- A. Yes
- B. No Discuss
- 3. In ultra-sonic machining, tool is made of
Options- A. tungsten carbide
- B. brass or copper
- C. diamond
- D. stainless steel Discuss
- 4. The tailstock set over required to turn a taper on the entire length of a workpiece having diameters D and d is
Options- A.
- B.
- C.
- D. D - d Discuss
- 5. A feed gear box for a screw cutting lathe is designed on the basis of
Options- A. geometric progression
- B. arithmetic progression
- C. harmonic progression
- D. none of these Discuss
- 6. The process of removing metal by a cutter which is rotated in the same direction of travel of workpiece, is called
Options- A. up milling
- B. down milling
- C. face milling
- D. end milling Discuss
- 7. Soft materials can not be economically ground due to
Options- A. high temperature involved
- B. frequent wheel clogging
- C. rapid wheel wear
- D. low work piece stiffness Discuss
- 8. Small nose radius
Options- A. increases tool life
- B. decreases tool life
- C. produces chipping and decreases tool life
- D. results in excessive stress concentration and greater heat generation Discuss
- 9. The width of cutting edge of a parting-off tool varies from
Options- A. 3 to 12 mm
- B. 5 to 20 mm
- C. 8 to 30 mm
- D. 15 to 40 mm Discuss
- 10. The rake angle of a single point cutting tool corresponds to __________ of a twist drill.
Options- A. lip clearance angle
- B. helix angle
- C. point angle
- D. chisel edge angle Discuss
Production Engineering problems
Search Results
Correct Answer: continuous
Correct Answer: Yes
Correct Answer: brass or copper
Correct Answer:
Correct Answer: geometric progression
Correct Answer: down milling
Correct Answer: frequent wheel clogging
Correct Answer: results in excessive stress concentration and greater heat generation
Correct Answer: 3 to 12 mm
Correct Answer: helix angle
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