Exercise: Production Engineering

Questions for: Production Engineering

When the metal is removed by erosion caused by rapidly recurring spark discharges between the tool and work, the process is known as
A:
electro-chemical machining
B:
electro-discharge machining
C:
ultra-sonic machining
D:
none of these
Answer: B
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Tool life is generally better when
A:
grain size of the metal is large
B:
grain size of the metal is small
C:
hard constituents are present in the microstructure of the tool material
D:
none of the above
Answer: A
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In metal cutting operations, chips are formed due to plastic deformation of the metal.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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The cutting speed is zero at the periphery and it is maximum at the centre of the drill.
A:
Yes
B:
No
C:
D:
Answer: B
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The cutting fluid mostly used for machining alloy steels is
A:
water
B:
soluble oil
C:
dry
D:
sulphurised mineral oil
Answer: D
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