Mechanical Engineering - Production Engineering

16.
Crater wear is predominant in
carbon tool steels
tungsten carbide tools
high speed steel tools
ceramic tools
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
The method of centreless grinding used to produce taper is
infeed grinding
through feed grinding
endfeed grinding
any one of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

18.
In a shaper, the length of stroke is increased by
increasing the centre distance of bull gear and crank pin
decreasing the centre distance of bull gear and crank pin
increasing the length of the arm
decreasing the length of the slot in the slotted lever
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
Carbon tool steels have low-heat and wear-resistance.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
Trepanning is an operation of
making a cone-shaped enlargement of the end of a hole
smoothing and squaring the surface around a hole
sizing and finishing a small diameter hole
producing a hole by removing metal along the circumference of a hollow cutting tool
Answer: Option
Explanation:
No answer description is available. Let's discuss.