Discussion
Home ‣ Mechanical Engineering ‣ Production Engineering Comments
- Question
As the cutting speed increases, tool life decreases.
Options- A. Yes
- B. No
- Correct Answer
- Yes
- 1. An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is
Options- A. cutting speed
- B. feed rate
- C. shear angle
- D. tool geometry Discuss
- 2. Thread grinding requires work speed from
Options- A. 1 to 3 m/min
- B. 5 to 10 m/min
- C. 10 to 14 m/min
- D. 14 to 20 m/min Discuss
- 3. The rear teeth of a broach
Options- A. perform burnishing operation
- B. remove minimum metal
- C. remove maximum metal
- D. remove no metal Discuss
- 4. In a shaper, the length of stroke is increased by
Options- A. increasing the centre distance of bull gear and crank pin
- B. decreasing the centre distance of bull gear and crank pin
- C. increasing the length of the arm
- D. decreasing the length of the slot in the slotted lever Discuss
- 5. The hardness of a grinding wheel is specified by
Options- A. Brinell hardness number
- B. Rockwel! hardness number
- C. Vickers pyramid number
- D. letter of alphabet Discuss
- 6. Crater wear is predominant in
Options- A. carbon tool steels
- B. tungsten carbide tools
- C. high speed steel tools
- D. ceramic tools Discuss
- 7. The top and sides of the table of a shaper usually have
Options- A. L-type slots
- B. T-type slots
- C. I-type slots
- D. any one of these Discuss
- 8. The swing diameter over the bed is __________ the height of the centre measured from the bed of the lathe.
Options- A. equal to
- B. twice
- C. thrice
- D. one-half Discuss
- 9. The abrasive recommended for grinding materials of high tensile strength is
Options- A. silicon carbide
- B. aluminium oxide
- C. sand stone
- D. diamond Discuss
- 10. 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
Production Engineering problems
Search Results
Correct Answer: shear angle
Correct Answer: 1 to 3 m/min
Correct Answer: remove maximum metal
Correct Answer: increasing the centre distance of bull gear and crank pin
Correct Answer: letter of alphabet
Correct Answer: tungsten carbide tools
Correct Answer: T-type slots
Correct Answer: twice
Correct Answer: aluminium oxide
Correct Answer: using a softer wheel or by decreasing the wheel speed
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.