Discussion
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- Question
In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness ratio is unaffected with the changed cutting conditions, the actual chip thickness will be
Options- A. doubled
- B. halved
- C. quadrupled
- D. unchanged
- Correct Answer
- doubled
- 1. For turning internal tapers, the suitable method is
Options- A. by a form tool
- B. by setting over the tail stock
- C. by a taper turning attachment
- D. by swivelling the compound rest Discuss
- 2. Which of the following parameters govern the value of shear angle in continuous chip formation?
Options- A. True feed
- B. Chip thickness
- C. Rake angle of the cutting tool
- D. all of these Discuss
- 3. Tool life is measured by the
Options- A. number of pieces machined between tool sharpenings
- B. time the tool is in contact with the job
- C. volume of material removed between tool sharpenings
- D. all of the above Discuss
- 4. The lip clearance angle should decrease towards the centre of the drill than at the circumference.
Options- A. Yes
- B. No Discuss
- 5. The factor considered for evaluation of machinability is
Options- A. cutting forces and power consumption
- B. tool life
- C. type of chips and shear angle
- D. all of these Discuss
- 6. The correct sequence of the following parameters in order of their maximum to minimum influence on tool life is
Options- A. feed rate, depth of cut, cutting speed
- B. depth of cut, cutting speed, feed rate
- C. cutting speed, feed rate, depth of cut
- D. feed rate, cutting speed, depth of cut Discuss
- 7. For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
Options- A. 10 m/min
- B. 15 m/min
- C. 22 m/min
- D. 30 m/min Discuss
- 8. An open structure of a grinding wheel is denoted by the number 1 to 8.
Options- A. Correct
- B. Incorrect Discuss
- 9. Lathe bed is made of
Options- A. mild steel
- B. alloy steel
- C. pig iron
- D. chilled cast iron Discuss
- 10. The form grinding is used to grind gear teeth, threads, splined shafts and holes.
Options- A. Correct
- B. Incorrect Discuss
Production Engineering problems
Search Results
Correct Answer: by a taper turning attachment
Correct Answer: all of these
Correct Answer: all of the above
Correct Answer: No
Correct Answer: all of these
Correct Answer: cutting speed, feed rate, depth of cut
Correct Answer: 22 m/min
Correct Answer: Incorrect
Correct Answer: chilled cast iron
Correct Answer: Correct
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