Production Engineering problems
- 1. Glazing in grinding wheels can be decreased by
Options- A. using a harder wheel or by increasing the wheel speed
- B. using a softer wheel or by decreasing the wheel speed
- C. using a harder wheel or by decreasing the wheel speed
- D. using a softer wheel or by increasing the wheel speed Discuss
Correct Answer: using a softer wheel or by decreasing the wheel speed
- 2. Threading is an operation of
Options- A. smoothing and squaring the surface around a hole
- B. sizing and finishing a small diameter hole
- C. producing a hole by removing metal along the circumference of a hollow cutting tool
- D. cutting helical grooves on the external cylindrical surface Discuss
Correct Answer: cutting helical grooves on the external cylindrical surface
- 3. Down milling is also called
Options- A. conventional milling
- B. climb milling
- C. end milling
- D. face milling Discuss
Correct Answer: climb milling
- 4. Which of the following operations can be performed with milling cutters?
Options- A. cutting key ways on shafts
- B. cutting external screw threads
- C. cutting teeth of spur gears
- D. all of these Discuss
Correct Answer: all of these
- 5. Back rake angle of a single point tool is the angle by which the face of the tool is inclined towards back.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 6. In machining metals, chips break due to __________ of work material.
Options- A. toughness
- B. ductility
- C. elasticity
- D. work hardening Discuss
Correct Answer: work hardening
- 7. In continuous chip cutting, the maximum heat is taken by the cutting tool.
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 8. The depth of cut in drilling is __________ the drill diameter.
Options- A. equal to
- B. one-fourth
- C. one-half
- D. double Discuss
Correct Answer: one-half
- 9. When the backgear is engaged in a backgeared headstock, the spindle speed reduces considerably.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 10. High speed steel drills can be operated at about __________ the speed of high carbon steel drills.
Options- A. one-half
- B. one-fourth
- C. double
- D. four times Discuss
Correct Answer: double
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