Discussion
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- Question
Which of the following parameters influence the axial feed rate in centreless grinding?
Options- A. Regulating wheel diameter
- B. Speed of the regulating wheel
- C. Angle between the axes of grinding and regulating wheels
- D. all of the above
- Correct Answer
- all of the above
- 1. Larger than 15° side cutting edge angle
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
- 2. For softer materials, the point angle of the drill is kept
Options- A. equal to 118°
- B. less than 118°
- C. more than 118°
- D. any one of these Discuss
- 3. The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
Options- A. rake angle
- B. cutting angle
- C. clearance angle
- D. lip angle Discuss
- 4. In case of turning, as the machining proceeds, the spindle speed must __________ with the decrease in diameter of work.
Options- A. decrease
- B. increase Discuss
- 5. Trepanning is an operation of
Options- A. making a cone-shaped enlargement of the end of a hole
- B. smoothing and squaring the surface around a hole
- C. sizing and finishing a small diameter hole
- D. producing a hole by removing metal along the circumference of a hollow cutting tool Discuss
- 6. The cutting speed is minimum while machining __________ with a high speed steel tool.
Options- A. cast iron
- B. mild steel
- C. brass
- D. aluminium Discuss
- 7. The factor responsible for the formation of continuous chips with built up edge is
Options- A. low cutting speed and large rake angle
- B. low cutting speed and small rake angle
- C. high cutting speed and large rake angle
- D. high cutting speed and small rake angle Discuss
- 8. Any number of equal divisions can be obtained on milling machine by
Options- A. direct indexing
- B. simple indexing
- C. compound indexing
- D. differential indexing Discuss
- 9. In machining soft materials, a tool with negative relief angle is used.
Options- A. Correct
- B. Incorrect Discuss
- 10. The method of centreless grinding used to produce taper is
Options- A. infeed grinding
- B. through feed grinding
- C. endfeed grinding
- D. any one of these Discuss
Production Engineering problems
Search Results
Correct Answer: produces chipping and decreases tool life
Correct Answer: less than 118°
Correct Answer: rake angle
Correct Answer: increase
Correct Answer: producing a hole by removing metal along the circumference of a hollow cutting tool
Correct Answer: cast iron
Correct Answer: low cutting speed and small rake angle
Correct Answer: simple indexing
Correct Answer: Correct
Correct Answer: endfeed grinding
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