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Mechanical Engineering - Production Engineering

Exercise : Production Engineering - Section 6
46.
The lip clearance angle should decrease towards the centre of the drill than at the circumference.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
If the shear angle is large and the chip-tool contact area is low, then the tool life will be more.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
In drilling brass, a drill with
zero helix angle is used
low helix angle is used
high helix angle is used
any helix angle can be used
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
The carbide tools operating at very low cutting speeds (below 30 m/min)
reduces tool life
increases tool life
have no effect on tool life
spoils the work piece
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
In oblique cutting of metals, the cutting edge of the tool is
perpendicular to the workpiece
perpendicular to the direction of tool travel
parallel to the direction of tool travel
inclined at an angle less than 90° to the direction of tool travel
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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