Discussion
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- Question
Low helix angle drills are preferred for drilling holes in
Options- A. plastics
- B. copper
- C. cast steel
- D. carbon steel
- Correct Answer
- plastics
- 1. 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
- 2. 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
- 3. The chamfering is an essential operation after
Options- A. knurling
- B. rough turning
- C. boring
- D. thread cutting Discuss
- 4. The tool material, for faster machining, should have
Options- A. wear resistance
- B. red hardness
- C. toughness
- D. all of these Discuss
- 5. When the grinding wheel is marked by the letters from I to P, it indicates that the grinding wheel is of hard grade.
Options- A. True
- B. False Discuss
- 6. 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
- 7. 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
- 8. 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 Discuss
- 9. In a plain milling machine, the table can be moved
Options- A. longitudinally
- B. crosswise
- C. vertically
- D. all of these Discuss
- 10. 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
Production Engineering problems
Search Results
Correct Answer: bottoming tap
Correct Answer: all of these
Correct Answer: thread cutting
Correct Answer: all of these
Correct Answer: False
Correct Answer: shank, material and diameter
Correct Answer: all of these
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
Correct Answer: all of these
Correct Answer: left hand spiral fluted reamer
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