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- Question
In gear hobbing
Options- A. only hob rotates
- B. only gear blank rotates
- C. both hob and gear blank rotates
- D. neither hob nor gear blank rotates
- Correct Answer
- both hob and gear blank rotates
- 1. Flank wear is due to the abrasive action of hard mis-constituents including debris from built up edge as the work material rubs the work surface.
Options- A. Correct
- B. Incorrect Discuss
- 2. In oblique cutting system, the cutting edge of the tool
Options- A. may clear the width of the workpiece
- B. may or may not clear the width of the workpiece
- C. may not clear the width of the workpiece
- D. should always clear the width of the workpiece Discuss
- 3. Negative rakes are used for
Options- A. carbide tools
- B. heavy loads
- C. harder materials
- D. all of these Discuss
- 4. In the relation VTn = C, the value of n for high speed steel tools varies from 0.25 to 0.40.
Options- A. Agree
- B. Disagree Discuss
- 5. Tumbler gears in lathe are used to
Options- A. reduce the spindle speed
- B. cut gears
- C. give desired direction of movement to the lathe carriage
- D. drill a workpiece Discuss
- 6. A numerical method of identification of tool is known as tool signature.
Options- A. Correct
- B. Incorrect Discuss
- 7. The chuck preferred for quick setting and accurate centering of a job is
Options- A. four jaw independent chuck
- B. collect chuck
- C. three jaw universal chuck
- D. magnetic chuck Discuss
- 8. The dressing and truing of grinding wheel are done with the same tools but not for the same purpose.
Options- A. Agree
- B. Disagree Discuss
- 9. The tail stock set over method of taper turning is preferred for
Options- A. internal tapers
- B. small tapers
- C. long slender tapers
- D. steep tapers Discuss
- 10. The effect of setting a boring tool above centre height leads to
Options- A. increase in the effective rake angle and a decrease in the effective clearance angle
- B. increase in both effective rake angle and effective clearance angle
- C. decrease in the effective rake angle and an increase in the effective clearance angle
- D. decrease in both effective rake angle and effective clearance angle Discuss
Production Engineering problems
Search Results
Correct Answer: Correct
Correct Answer: may not clear the width of the workpiece
Correct Answer: all of these
Correct Answer: Disagree
Correct Answer: give desired direction of movement to the lathe carriage
Correct Answer: Correct
Correct Answer: collect chuck
Correct Answer: Agree
Correct Answer: long slender tapers
Correct Answer: increase in the effective rake angle and a decrease in the effective clearance angle
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