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Mechanical Engineering - Production Engineering

Exercise : Production Engineering - Section 8
16.
In machining cast iron, no cutting fluid is required.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
In machining metals, surface roughness is due to
feed marks or ridges left by the cutting tool
fragment of built-up edge on the machined surface
cutting tool vibrations
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
A diamond locating pin is used in jigs and fixtures because
diamond is very hard and wear resistant
it occupies very little space
it helps in assembly with tolerance on centre distance
it has a long life
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called
friction zone
work-tool contact zone
shear zone
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The drill spindles are provided with standard taper known as
Morse taper
Seller's taper
Chapman taper
Brown and Sharpe taper
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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