Discussion
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- Question
In machining metal, cutting force at the cutting edge is measured by a
Options- A. wattmeter
- B. dynamometer
- C. hydrometer
- D. pyrometer
- Correct Answer
- dynamometer
- 1. As the cutting speed increases, the tool cutting forces
Options- A. remain constant
- B. increases
- C. decreases
- D. first increases and then decreases Discuss
- 2. If the shear angle is large and the chip-tool contact area is low, then the tool life will be more.
Options- A. Correct
- B. Incorrect Discuss
- 3. The tool may fail due to
Options- A. cracking at the cutting edge due to thermal stresses
- B. chipping of the cutting edge
- C. plastic deformation of the cutting edge
- D. all of these Discuss
- 4. The grinding of long, slender shafts or bars is usually done by
Options- A. infeed grinding
- B. through feed grinding
- C. endfeed grinding
- D. any one of these Discuss
- 5. In twist fluted drills, chips do not move out automatically.
Options- A. Correct
- B. Incorrect Discuss
- 6. 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
- 7. 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
- 8. In ultra-sonic machining, tool is made of
Options- A. tungsten carbide
- B. brass or copper
- C. diamond
- D. stainless steel Discuss
- 9. In oblique cutting system, the tool may or may not generate a surface parallel to the workface.
Options- A. Yes
- B. No Discuss
- 10. Mild steel during machining produces __________ chips.
Options- A. continuous
- B. discontinuous Discuss
Production Engineering problems
Search Results
Correct Answer: decreases
Correct Answer: Correct
Correct Answer: all of these
Correct Answer: through feed grinding
Correct Answer: Incorrect
Correct Answer: geometric progression
Correct Answer:
Correct Answer: brass or copper
Correct Answer: Yes
Correct Answer: continuous
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