Production Engineering problems
- 1. 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
Correct Answer: letter of alphabet
- 2. 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
Correct Answer: increasing the centre distance of bull gear and crank pin
- 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
Correct Answer: remove maximum metal
- 4. 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
Correct Answer: 1 to 3 m/min
- 5. 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
Correct Answer: shear angle
- 6. As the cutting speed increases, tool life decreases.
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 7. Crater wear is predominant in
Options- A. carbon tool steels
- B. tungsten carbide tools
- C. high speed steel tools
- D. ceramic tools Discuss
Correct Answer: tungsten carbide tools
- 8. 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
Correct Answer: T-type slots
- 9. 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
Correct Answer: twice
- 10. The abrasive recommended for grinding materials of high tensile strength is
Options- A. silicon carbide
- B. aluminium oxide
- C. sand stone
- D. diamond Discuss
Correct Answer: aluminium oxide
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