Production Engineering problems
- 1. The chuck preferred for quick setting and accurate centering of a job is
Options- A. four jaw independent chuck
- B. collect chuck
- C. three jaw universal chuck
- D. magnetic chuck Discuss
Correct Answer: collect chuck
- 2. The dressing and truing of grinding wheel are done with the same tools but not for the same purpose.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 3. The tail stock set over method of taper turning is preferred for
Options- A. internal tapers
- B. small tapers
- C. long slender tapers
- D. steep tapers Discuss
Correct Answer: long slender tapers
- 4. The effect of setting a boring tool above centre height leads to
Options- A. increase in the effective rake angle and a decrease in the effective clearance angle
- B. increase in both effective rake angle and effective clearance angle
- C. decrease in the effective rake angle and an increase in the effective clearance angle
- D. decrease in both effective rake angle and effective clearance angle Discuss
Correct Answer: increase in the effective rake angle and a decrease in the effective clearance angle
- 5. The tool life __________ as the cutting speed increases.
Options- A. decreases
- B. increases Discuss
Correct Answer: decreases
- 6. Chemical milling operation is performed
Options- A. on universal milling machine
- B. on plain milling machine
- C. in a tank containing an etching solution
- D. any one of these Discuss
Correct Answer: in a tank containing an etching solution
- 7. The thrust force will increase with the increase in
Options- A. side cutting edge angle
- B. tool nose radius
- C. rake angle
- D. end cutting edge angle Discuss
Correct Answer: side cutting edge angle
- 8. Which of the following statement is correct about nose radius?
Options- A. It improves tool life
- B. It improves the surface finish
- C. both (a) and (b)
- D. none of these Discuss
Correct Answer: both (a) and (b)
- 9. The point angle of a drill, for drilling stainless steel, is
Options- A. 90°
- B. 118°
- C. 135°
- D. 150° Discuss
Correct Answer: 135°
- 10. Stellite preserve hardness upto a temperature of
Options- A. 350°C
- B. 500°C
- C. 900°C
- D. 1100°C Discuss
Correct Answer: 1100°C
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