1
GATE PI 2005
+2
-0.6
Consider the following statements
During the third stage of tool-wear, rapid deterioration of tool edge takes place because
$$1.$$ Flank wear is only marginal.
$$2.$$ Flank wear is large.
$$3.$$ Temperature of the tool increases gradually.
$$4.$$ Temperature of the tool increases drastically.

Which of the statements given above are correct?

A
$$1$$ & $$3$$
B
$$2$$ & $$4$$
C
$$1$$ & $$4$$
D
$$2$$ & $$3$$
2
GATE PI 2005
+2
-0.6
The rake angle of a cutting tool is $${15^ \circ }$$, shear angle $${45^ \circ }$$ and cutting velocity $$35$$ $$m/min$$. What is the velocity of chip along the tool face?
A
$$28.5$$ $$m/min$$
B
$$27.3$$ $$m/min$$
C
$$25.3$$ $$m/min$$
D
$$23.5$$ $$m/min$$
3
GATE PI 2005
+2
-0.6
Match List - $${\rm I}$$ with List - $${\rm I}$$$${\rm I}$$ and select the correct answer using the codes given below:
A
$$A - 1,\,\,B - 4,\,\,C - 2,\,\,D - 5$$
B
$$A - 4,\,\,B - 1,\,\,C - 3,\,\,D - 2$$
C
$$A - 4,\,\,B - 1,\,\,C - 2,\,\,D - 3$$
D
$$A - 1,\,\,B - 4,\,\,C - 3,\,\,D - 5$$
4
GATE PI 2005
+2
-0.6
Consider the following statements
$$1.$$ $$\,\,\,\,\,\,\,\,\,\,\,\,$$ As the cutting speed increases, the cost of production initially reduces, then
$$\,\,\,\,\,\,\,\,\,\,\,\,$$after an optimum cutting speed it increases.
$$2.$$ $$\,\,\,\,\,\,\,\,\,\,\,\,$$ As the cutting speed increases the cost of production also increases and
$$\,\,\,\,\,\,\,\,\,\,\,\,$$after a critical value to it reduces.
$$3.$$ $$\,\,\,\,\,\,\,\,\,\,\,\,$$ Higher feed rate for the same cutting speed reduces cost of production.
$$4.$$ $$\,\,\,\,\,\,\,\,\,\,\,\,$$ Higher feed rate for the same cutting speed increases the cost of production

Which of the statements given above are correct?

A
$$1$$ and $$3$$
B
$$2$$ and $$3$$
C
$$1$$ and $$4$$
D
$$3$$ only
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