Discussion
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- Question
Continuous chips with built up edge are formed during machining of
Options- A. brittle metals
- B. ductile metals
- C. hard metals
- D. soft metals
- Correct Answer
- ductile metals
- 1. Surface grinding is done to produce
Options- A. tapered surface
- B. flat surface
- C. internal cylindrical holes
- D. all of these Discuss
- 2. The form grinding is used to grind gear teeth, threads, splined shafts and holes.
Options- A. Correct
- B. Incorrect Discuss
- 3. Lathe bed is made of
Options- A. mild steel
- B. alloy steel
- C. pig iron
- D. chilled cast iron Discuss
- 4. An open structure of a grinding wheel is denoted by the number 1 to 8.
Options- A. Correct
- B. Incorrect Discuss
- 5. 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
- 6. 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
- 7. In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called
Options- A. gang milling
- B. straddle milling
- C. string milling
- D. side milling Discuss
- 8. For harder alloy steel, the point angle of the drill is kept
Options- A. equal to 118°
- B. less than 118°
- C. more than 118°
- D. any one of these Discuss
- 9. In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
Options- A. depth of cut
- B. cutting speed
- C. feed
- D. tool rake angle Discuss
- 10. A better machinable metal is one which gives
Options- A. lower chip-tool contact area and larger shear angle
- B. higher chip-tool contact area and smaller shear angle
- C. lower chip-tool contact area and smaller shear angle
- D. higher chip-tool contact area and larger shear angle Discuss
Production Engineering problems
Search Results
Correct Answer: flat surface
Correct Answer: Correct
Correct Answer: chilled cast iron
Correct Answer: Incorrect
Correct Answer: 22 m/min
Correct Answer: high speed of wheel
Correct Answer: straddle milling
Correct Answer: more than 118°
Correct Answer: cutting speed
Correct Answer: lower chip-tool contact area and larger shear angle
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