Discussion
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- Question
Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?
Options- A. Turning
- B. Grinding
- C. Boring
- D. Milling
- Correct Answer
- Milling
- 1. The cutting force in up milling __________ per tooth movement of the cutter.
Options- A. is zero
- B. is maximum
- C. decreases from maximum to zero
- D. increases from zero to maximum Discuss
- 2. The cutting speed of a drill varies from point to point on the cutting edge of the drill.
Options- A. Correct
- B. Incorrect Discuss
- 3. The helix angle of a drill is __________ for drilling brass.
Options- A. equal to 30°
- B. less than 30°
- C. more than 30° Discuss
- 4. The grinding operaion is a
Options- A. shaping operation
- B. forming operation
- C. surface finishing operation
- D. dressing operation Discuss
- 5. In continuous chip cutting, the maximum heat __________ the velocity of cutting.
Options- A. depends upon
- B. does not depend upon Discuss
- 6. The height of each tooth of a broach is
Options- A. same throughout
- B. in progressively decreasing order
- C. in progressively increasing order
- D. none of these Discuss
- 7. High speed steel tools retain their hardness upto a temperature of
Options- A. 250°C
- B. 350°C
- C. 500°C
- D. 900°C Discuss
- 8. In hot machining, solid carbide tools are preferred over high speed steel tools.
Options- A. True
- B. False Discuss
- 9. The abrasive slurry used in ultra-sonic machining contains fine particles of
Options- A. aluminium oxide
- B. boron carbide
- C. silicon carbide
- D. any one of these Discuss
- 10. The chuck used for setting up of heavy and irregular shaped work should be
Options- A. four jaw independent chuck
- B. three jaw universal chuck
- C. magnetic chuck
- D. drill chuck Discuss
Production Engineering problems
Search Results
Correct Answer: increases from zero to maximum
Correct Answer: Correct
Correct Answer: less than 30°
Correct Answer: surface finishing operation
Correct Answer: depends upon
Correct Answer: in progressively increasing order
Correct Answer: 900°C
Correct Answer: True
Correct Answer: any one of these
Correct Answer: four jaw independent chuck
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