Production Engineering problems
- 1. The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
Options- A. mild steel
- B. copper
- C. aluminium
- D. brass Discuss
Correct Answer: mild steel
- 2. A fine grained grinding wheel is used to grind
Options- A. hard and brittle materials
- B. soft and ductile materials
- C. hard and ductile materials
- D. soft and brittle materials Discuss
Correct Answer: hard and brittle materials
- 3. Hard and tough materials like cast iron should be turned at
Options- A. slow speed
- B. high speed
- C. any speed
- D. certain specific speed Discuss
Correct Answer: slow speed
- 4. 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
Correct Answer: give desired direction of movement to the lathe carriage
- 5. 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
Correct Answer: Disagree
- 6. Negative rakes are used for
Options- A. carbide tools
- B. heavy loads
- C. harder materials
- D. all of these Discuss
Correct Answer: all of these
- 7. 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
Correct Answer: may not clear the width of the workpiece
- 8. 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
Correct Answer: Correct
- 9. 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 Discuss
Correct Answer: both hob and gear blank rotates
- 10. A numerical method of identification of tool is known as tool signature.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
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