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- Question
Trepanning is an operation of
Options- A. making a cone-shaped enlargement of the end of a hole
- B. smoothing and squaring the surface around a hole
- C. sizing and finishing a small diameter hole
- D. producing a hole by removing metal along the circumference of a hollow cutting tool
- Correct Answer
- producing a hole by removing metal along the circumference of a hollow cutting tool
- 1. A __________ grinding wheel is used to grind soft materials.
Options- A. coarse grained
- B. medium grained
- C. finegrained Discuss
- 2. The binding material used in cemented carbide tools is
Options- A. tungsten
- B. chromium
- C. silicon
- D. cobalt Discuss
- 3. In order to grind soft material
Options- A. coarse grained grinding wheel is used
- B. fine grained grinding wheel is used
- C. medium grained grinding wheel is used
- D. any one of these Discuss
- 4. The angle between the shear plane and __________ is called shear angle.
Options- A. work surface
- B. tool face Discuss
- 5. The lathe spindles are usually made hollow and provided with
Options- A. internal taper
- B. external taper
- C. internal and external taper
- D. no taper Discuss
- 6. In case of turning, as the machining proceeds, the spindle speed must __________ with the decrease in diameter of work.
Options- A. decrease
- B. increase Discuss
- 7. The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
Options- A. rake angle
- B. cutting angle
- C. clearance angle
- D. lip angle Discuss
- 8. For softer materials, the point angle of the drill is kept
Options- A. equal to 118°
- B. less than 118°
- C. more than 118°
- D. any one of these Discuss
- 9. Larger than 15° side cutting edge angle
Options- A. increases tool life
- B. decreases tool life
- C. produces chipping and decreases tool life
- D. results in excessive stress concentration and greater heat generation Discuss
- 10. Which of the following parameters influence the axial feed rate in centreless grinding?
Options- A. Regulating wheel diameter
- B. Speed of the regulating wheel
- C. Angle between the axes of grinding and regulating wheels
- D. all of the above Discuss
Production Engineering problems
Search Results
Correct Answer: coarse grained
Correct Answer: cobalt
Correct Answer: coarse grained grinding wheel is used
Correct Answer: work surface
Correct Answer: internal taper
Correct Answer: increase
Correct Answer: rake angle
Correct Answer: less than 118°
Correct Answer: produces chipping and decreases tool life
Correct Answer: all of the above
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