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Mechanical Engineering - Workshop Technology

Exercise : Workshop Technology - Section 3
16.
The operation of cutting a number of holes evenly spaced in a regular pattern on a sheet of metal is. called perforating.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The metal is subjected to mechanical working for
refining grain size
reducing original block into desired shape
controlling the direction of flow lines
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
During hot working of metals
porosity of the metal is largely eliminated
grain structure of the metal is refined
mechanical properties are improved due to refinement of grains
all of the above
Answer: Option
Explanation:
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19.
The electron beam welding can be carried out in
open air
a shielded gas environment
vacuum
a pressurised inert gas chamber
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
In tungsten-inert gas arc welding, a __________ electrode is used.
consumable
non-consumable
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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