Discussion
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- Question
In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called
Options- A. friction zone
- B. work-tool contact zone
- C. shear zone
- D. none of these
- Correct Answer
- friction zone
- 1. Holes are machined by push broaches only for sizing.
Options- A. Correct
- B. Incorrect Discuss
- 2. The angle between the face of the tool and a line tangent to the machined surface at the cutting point is called cutting angle.
Options- A. Correct
- B. Incorrect Discuss
- 3. Which of the following statement is correct as regard to up milling?
Options- A. It can not be used on old machines due to backlash between the feed screw of the table and the nut.
- B. The chips are disposed off easily and do not interfere with the cutting.
- C. The surface milled appears to be slightly wavy.
- D. The coolant can be poured directly at the cutting zone where the cutting force is maximum. Discuss
- 4. Buffing wheels are made of
Options- A. softer metals
- B. cotton fabric
- C. carbon
- D. graphite Discuss
- 5. In determining the various forces on the chip, Merchant assumed that the
Options- A. cutting edge of the tool is sharp and it does not make any flank contact with the workpiece
- B. only continuous chip without built-up-edge is produced
- C. cutting velocity remains constant
- D. all of the above Discuss
- 6. The operation performed on a shaper is
Options- A. machining horizontal surface
- B. machining vertical surface
- C. machining angular surface
- D. all of these Discuss
- 7. A diamond locating pin is used in jigs and fixtures because
Options- A. diamond is very hard and wear resistant
- B. it occupies very little space
- C. it helps in assembly with tolerance on centre distance
- D. it has a long life Discuss
- 8. The infeed grinding is used to
Options- A. produce tapers
- B. grind shoulders and formed surfaces
- C. grind long, slender shafts or bars
- D. ail of these Discuss
- 9. The increase in depth of cut and feed rate __________ surface finish.
Options- A. improves
- B. deteriorates
- C. does not effect Discuss
- 10. If F is the fixed cost, V is the variable cost per unit (or total variable costs) and P is the selling price of each unit (or total sales value), then break even point is equal to
Options- A.
- B.
- C.
- D.
Discuss
Production Engineering problems
Search Results
Correct Answer: Correct
Correct Answer: Correct
Correct Answer: The surface milled appears to be slightly wavy.
Correct Answer: cotton fabric
Correct Answer: all of the above
Correct Answer: all of these
Correct Answer: it helps in assembly with tolerance on centre distance
Correct Answer: grind shoulders and formed surfaces
Correct Answer: deteriorates
Correct Answer:
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