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- Question
In plunge grinding
Options- A. the work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
- B. the work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
- C. the work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
- D. the work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
- Correct Answer
- the work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
- 1. The grade of grinding wheel depends upon
Options- A. hardness of the material being ground
- B. speed of wheel and work
- C. condition of grinding machine
- D. all of these Discuss
- 2. A twist drill is specified by its
Options- A. shank, material and diameter
- B. shank, lip angle and size of flute
- C. material, length of body and helix angle
- D. any one of these Discuss
- 3. Low helix angle drills are preferred for drilling holes in
Options- A. plastics
- B. copper
- C. cast steel
- D. carbon steel Discuss
- 4. The tap used to cut threads in a blind hole is
Options- A. taper tap
- B. second tap
- C. bottoming tap
- D. any one of these Discuss
- 5. An open structure of a grinding wheel is used for
Options- A. soft materials
- B. tough materials
- C. ductile materials
- D. all of these Discuss
- 6. In a plain milling machine, the table can be moved
Options- A. longitudinally
- B. crosswise
- C. vertically
- D. all of these Discuss
- 7. The type of reamer used for reaming soft aluminium or copper, is
Options- A. straight fluted reamer
- B. left hand spiral fluted reamer
- C. right hand spiral fluted reamer
- D. any one of these Discuss
- 8. Side relief angle of a single point tool is the angle
Options- A. by which the face of the tool is inclined towards back
- B. by which the face of the tool is inclined sideways
- C. between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool
- D. between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base Discuss
- 9. To grind brittle materials, a coarse grained grinding wheel is used.
Options- A. Agree
- B. Disagree Discuss
- 10. The actual feed in centreless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and ? = Angle of inclination of wheel)
Options- A. ?d
- B. ?d n
- C. ?d n sin ?
- D. ?d n cos ? Discuss
Production Engineering problems
Search Results
Correct Answer: all of these
Correct Answer: shank, material and diameter
Correct Answer: plastics
Correct Answer: bottoming tap
Correct Answer: all of these
Correct Answer: all of these
Correct Answer: left hand spiral fluted reamer
Correct Answer: between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool
Correct Answer: Disagree
Correct Answer: ?d n sin ?
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