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Mechanical Engineering - Production Engineering

Exercise : Production Engineering - Section 3
21.
The surface finish is improved by the increase in
cutting speed
nose radius
true rake angle
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The cutting speed for drilling copper with high speed steel drills varies from
10 to 20 m/min
18 to 30 m/min
24 to 45 m/min
60 to 90 m/min
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
A dense structure of a grinding wheel is denoted by the number 9 to 15 or higher.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
High speed steel tools retain their hardness upto a temperature of
250°C
350°C
500°C
900°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A taper tap has
its end tapered for about three or four threads
its end tapered for about eight or ten threads
full threads for the whole of its length
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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