Production Engineering problems
- 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
Correct Answer: by a taper turning attachment
- 2. 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 Discuss
Correct Answer: doubled
- 3. 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
Correct Answer: cutting speed, feed rate, depth of cut
- 4. 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
Correct Answer: 22 m/min
- 5. An open structure of a grinding wheel is denoted by the number 1 to 8.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Incorrect
- 6. Lathe bed is made of
Options- A. mild steel
- B. alloy steel
- C. pig iron
- D. chilled cast iron Discuss
Correct Answer: chilled cast iron
- 7. The form grinding is used to grind gear teeth, threads, splined shafts and holes.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 8. Surface grinding is done to produce
Options- A. tapered surface
- B. flat surface
- C. internal cylindrical holes
- D. all of these Discuss
Correct Answer: flat surface
- 9. Continuous chips with built up edge are formed during machining of
Options- A. brittle metals
- B. ductile metals
- C. hard metals
- D. soft metals Discuss
Correct Answer: ductile metals
- 10. Crack in grinding wheel is developed due to
Options- A. high temperature developed at the contact of the wheel face and work
- B. grinding hard work
- C. low speed of wheel
- D. high speed of wheel Discuss
Correct Answer: high speed of wheel
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