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- Question
The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is
Options- A. 1.02
- B. 1.32
- C. 1.66
- D. 1.82
- Correct Answer
- 1.32
- 1. The helix angle of a drill is more than 30° for drilling aluminium.
Options- A. Agree
- B. Disagree Discuss
- 2. The type of tool used on milling machine and broaching machine is
Options- A. single point cutting tool
- B. two point cutting tool
- C. three point cutting tool
- D. multi-point cutting tool Discuss
- 3. A dense structure of a grinding wheel is used for
Options- A. hard materials
- B. brittle materials
- C. fnishing cuts
- D. all of these Discuss
- 4. The part of the tool on which cutting edge is formed is called nose.
Options- A. Correct
- B. Incorrect Discuss
- 5. The size of abrasive grain required in a grinding wheel depends upon the
Options- A. amount of material to be removed
- B. hardness of material being ground
- C. finish desired
- D. all of these Discuss
- 6. The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. The overall average speed of operation is
Options- A. 3.75 m/min
- B. 5 m/min
- C. 7.5 m/min
- D. 15 m/min Discuss
- 7. The swing diameter over carriage is always less than the swing diameter over bed.
Options- A. Yes
- B. No Discuss
- 8. A single point tool has
Options- A. rake angle
- B. cutting angle
- C. lip angle
- D. all of these Discuss
- 9. The keyways, grooves and slots cannot be cut on a shaper.
Options- A. True
- B. False Discuss
- 10. The factor responsible for the formation of discontinuous chips is
Options- A. low cutting speed and large rake angle
- B. low cutting speed and small rake angle
- C. high cutting speed and large rake angle
- D. high cutting speed and small rake angle Discuss
Production Engineering problems
Search Results
Correct Answer: Agree
Correct Answer: multi-point cutting tool
Correct Answer: all of these
Correct Answer: Incorrect
Correct Answer: hardness of material being ground
Correct Answer: 7.5 m/min
Correct Answer: Yes
Correct Answer: all of these
Correct Answer: False
Correct Answer: low cutting speed and small rake angle
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