Discussion
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- Question
High speed steel drills can be operated at about __________ the speed of high carbon steel drills.
Options- A. one-half
- B. one-fourth
- C. double
- D. four times
- Correct Answer
- double
- 1. When the backgear is engaged in a backgeared headstock, the spindle speed reduces considerably.
Options- A. Agree
- B. Disagree Discuss
- 2. The depth of cut in drilling is __________ the drill diameter.
Options- A. equal to
- B. one-fourth
- C. one-half
- D. double Discuss
- 3. In continuous chip cutting, the maximum heat is taken by the cutting tool.
Options- A. Yes
- B. No Discuss
- 4. In machining metals, chips break due to __________ of work material.
Options- A. toughness
- B. ductility
- C. elasticity
- D. work hardening Discuss
- 5. Back rake angle of a single point tool is the angle by which the face of the tool is inclined towards back.
Options- A. Agree
- B. Disagree Discuss
- 6. A process of removing metal by pushing or pulling a cutting tool is called
Options- A. up milling
- B. down milling
- C. forming
- D. broaching Discuss
- 7. In metal machining, the work-tool contact zone is a zone where heat is generated due to
Options- A. plastic deformation of metal
- B. burnishing friction
- C. friction between the moving chip and the tool face
- D. none of the above Discuss
- 8. In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is
Options- A. cylindrical grinder
- B. internal grinder
- C. surface grinder
- D. tool and cutter grinder Discuss
- 9. Carbon tool steels have low-heat and wear-resistance.
Options- A. Correct
- B. Incorrect Discuss
- 10. The lathe spindles are usually made hollow and provided with
Options- A. internal taper
- B. external taper
- C. internal and external taper
- D. no taper Discuss
Production Engineering problems
Search Results
Correct Answer: Agree
Correct Answer: one-half
Correct Answer: No
Correct Answer: work hardening
Correct Answer: Agree
Correct Answer: broaching
Correct Answer: burnishing friction
Correct Answer: surface grinder
Correct Answer: Correct
Correct Answer: internal taper
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