Production Engineering problems
- 1. The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is
Options- A. 1.02
- B. 1.32
- C. 1.66
- D. 1.82 Discuss
Correct Answer: 1.32
- 2. The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. The overall average speed of operation is
Options- A. 3.75 m/min
- B. 5 m/min
- C. 7.5 m/min
- D. 15 m/min Discuss
Correct Answer: 7.5 m/min
- 3. The swing diameter over carriage is always less than the swing diameter over bed.
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 4. A single point tool has
Options- A. rake angle
- B. cutting angle
- C. lip angle
- D. all of these Discuss
Correct Answer: all of these
- 5. The keyways, grooves and slots cannot be cut on a shaper.
Options- A. True
- B. False Discuss
Correct Answer: False
- 6. The factor responsible for the formation of discontinuous chips 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
Correct Answer: low cutting speed and small rake angle
- 7. A jig is defined as a device which
Options- A. holds and locates a workpiece and guides and controls one or more cutting tools
- B. holds and locates a workpiece during an inspection or for a manufacturing operation
- C. is used to check the accuracy of workpiece
- D. all of the above Discuss
Correct Answer: holds and locates a workpiece and guides and controls one or more cutting tools
- 8. Glazing in grinding wheels takes place when the
Options- A. wheel is too hard or wheel revolves at a very high speed
- B. wheel is too soft or wheel revolves at a very slow speed
- C. wheel is too hard and wheel revolves at very slow speed
- D. wheel is too soft and wheel revolves at a very high speed Discuss
Correct Answer: wheel is too hard or wheel revolves at a very high speed
- 9. A grinding wheel is said to be of __________ if it holds the abrasive grains more securely.
Options- A. soft grade
- B. medium grade
- C. hard grade Discuss
Correct Answer: hard grade
- 10. A dynamometer is a device used for the measurement of
Options- A. chip thickness ratio
- B. forces during metal cutting
- C. wear of the cutting tool
- D. deflection of the cutting tool Discuss
Correct Answer: forces during metal cutting
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