Discussion
Home ‣ Mechanical Engineering ‣ Production Engineering Comments
- Question
In which of the following machine, the work is usually rotated while the drill is fed into work?
Options- A. Sensitive drilling machine
- B. Radial drilling machine
- C. Gang drilling machine
- D. Deep hole drilling machine
- Correct Answer
- Deep hole drilling machine
- 1. With the same tool life, the maximum material per minute is removed by
Options- A. increasing the cutting speed
- B. decreasing the cutting speed
- C. increasing the depth of cut
- D. increasing the feed rate Discuss
- 2. The cutting fluid mostly used for machining steel is
Options- A. water
- B. soluble oil
- C. dry
- D. heavy oils Discuss
- 3. The addition of lead, sulphur and phosphorus to low carbon steels, help to
Options- A. reduce built up edge
- B. break up chips
- C. improve machinability
- D. all of these Discuss
- 4. The abrasive recommended for grinding materials of low tensile strength is
Options- A. silicon carbide
- B. aluminium oxide
- C. sand stone
- D. diamond Discuss
- 5. The carbide tools operating at very low cutting speeds (below 30 m/min)
Options- A. reduces tool life
- B. increases tool life
- C. have no effect on tool life
- D. spoils the work piece Discuss
- 6. The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)
Options- A. VnT = C
- B. VTn = C
- C. Vn/T = C
- D. V/Tn = C Discuss
- 7. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
Options- A. profile milling
- B. gang milling
- C. saw milling
- D. helical milling Discuss
- 8. In conventional milling, the cutting force tends to lift the work.
Options- A. True
- B. False Discuss
- 9. The grinding wheel speed (surface speed in m/min) usually varies from
Options- A. 500 to 1000
- B. 1000 to 1500
- C. 1500 to 2000
- D. 2000 to 2500 Discuss
- 10. In oblique cutting of metals, the cutting edge of the tool is
Options- A. perpendicular to the workpiece
- B. perpendicular to the direction of tool travel
- C. parallel to the direction of tool travel
- D. inclined at an angle less than 90° to the direction of tool travel Discuss
Production Engineering problems
Search Results
Correct Answer: increasing the depth of cut
Correct Answer: soluble oil
Correct Answer: all of these
Correct Answer: silicon carbide
Correct Answer: reduces tool life
Correct Answer: VTn = C
Correct Answer: helical milling
Correct Answer: True
Correct Answer: 1500 to 2000
Correct Answer: inclined at an angle less than 90° to the direction of tool travel
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.