Mechanical Engineering - Production Engineering

1.
A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through-hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is
0.2 mm
10 mm
20 mm
100 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The tail stock and the carriage of a lathe may be guided on same or different guideway.
True
False
Answer: Option
Explanation:
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3.
In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
depth of cut
cutting speed
feed
tool rake angle
Answer: Option
Explanation:
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4.
Surface grinding is done to produce
tapered surface
flat surface
internal cylindrical holes
all of these
Answer: Option
Explanation:
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5.
Gear finishing operation is called
shaping
milling
hobbing
burnishing
Answer: Option
Explanation:
No answer description is available. Let's discuss.