Discussion
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- Question
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
- Correct Answer
- increasing the centre distance of bull gear and crank pin
- 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
- 2. The type of tool used on lathe, shaper and planer is
Options- A. single point cutting tool
- B. two point cutting tool
- C. three point cutting tool
- D. multi-point cutting tool Discuss
- 3. Which of the following statement is correct for orthogonal cutting system?
Options- A. The cutting edge of the tool is perpendicular to the direction of tool travel.
- B. The cutting edge clears the width of the workpiece on either ends.
- C. The chip flows over the tool face and the direction of the chip flow velocity is normal to the cutting edge.
- D. all of the above Discuss
- 4. The example of snag grinding is
Options- A. trimming the surface left by sprues and risers on castings
- B. grinding the parting line left on castings
- C. removing flash on forgings
- D. all of these Discuss
- 5. When the end of a tap is tapered for about three or four threads, it is known as a
Options- A. taper tap
- B. bottoming tap
- C. second tap
- D. none of these Discuss
- 6. The rear teeth of a broach
Options- A. perform burnishing operation
- B. remove minimum metal
- C. remove maximum metal
- D. remove no metal Discuss
- 7. 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
- 8. 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
- 9. As the cutting speed increases, tool life decreases.
Options- A. Yes
- B. No Discuss
- 10. Crater wear is predominant in
Options- A. carbon tool steels
- B. tungsten carbide tools
- C. high speed steel tools
- D. ceramic tools Discuss
Production Engineering problems
Search Results
Correct Answer: letter of alphabet
Correct Answer: single point cutting tool
Correct Answer: all of the above
Correct Answer: all of these
Correct Answer: second tap
Correct Answer: remove maximum metal
Correct Answer: 1 to 3 m/min
Correct Answer: shear angle
Correct Answer: Yes
Correct Answer: tungsten carbide tools
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