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Mechanical Engineering - Production Engineering

Exercise : Production Engineering - Section 7
36.
Which of the following statement is correct about hot machining?
It requires less power than machining metals at room temperature.
The rate of tool wear is lower.
It is used for machining high strength and high temperature resistant materials.
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
For turning internal tapers, the suitable method is
by a form tool
by setting over the tail stock
by a taper turning attachment
by swivelling the compound rest
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Lathe bed is made of
mild steel
alloy steel
pig iron
chilled cast iron
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
friction zone
work-tool contact zone
shear zone
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The operation of making a cone-shaped enlargement of the end of a hole is known as
counter-sinking
counter-boring
trepanning
spot facing
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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