Discussion
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- Question
In drilling bakellite and fibrous plastics, the point angle of a drill is
Options- A. 90°
- B. 118°
- C. 135°
- D. 150°
- Correct Answer
- 90°
- 1. The shear velocity is the velocity of
Options- A. tool relative to the workpiece
- B. chip relative to the tool
- C. tool along the tool face
- D. none of these Discuss
- 2. For turning small taper on long workpiece, the suitable method is
Options- A. by a form tool
- B. by setting over the tail stock
- C. by a taper turning attachment
- D. by swivelling the compound rest Discuss
- 3. The method of grinding used to produce internal cylindrical holes and tapers, is
Options- A. internal cylindrical grinding
- B. form grinding
- C. external cylindrical grinding
- D. surface grinding Discuss
- 4. The operation of making a cone-shaped enlargement of the end of a hole is known as
Options- A. counter-sinking
- B. counter-boring
- C. trepanning
- D. spot facing Discuss
- 5. In a shaper
Options- A. tool is stationary and work reciprocates
- B. work is stationary and tool reciprocates
- C. tool moves over stationary work
- D. tool moves over reciprocating work Discuss
- 6. The vector sum of cutting velocity and chip velocity is __________ shear velocity.
Options- A. equal to
- B. less than
- C. more than Discuss
- 7. The angle between the lathe centres is
Options- A. 30°
- B. 45°
- C. 60°
- D. 90° Discuss
- 8. The rate of removing metal is __________ by increasing the depth of cut.
Options- A. decreased
- B. increased Discuss
- 9. A grinding wheel is said to be of __________ if the abrasive grains can be easily dislodged.
Options- A. soft grade
- B. medium grade
- C. hard grade Discuss
- 10. In a shaper, the metal is removed during
Options- A. forward stroke
- B. return stroke
- C. both the forward and return strokes
- D. neither the forward nor the return stroke Discuss
Production Engineering problems
Search Results
Correct Answer: none of these
Correct Answer: by setting over the tail stock
Correct Answer: internal cylindrical grinding
Correct Answer: counter-sinking
Correct Answer: work is stationary and tool reciprocates
Correct Answer: equal to
Correct Answer: 60°
Correct Answer: increased
Correct Answer: soft grade
Correct Answer: forward stroke
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