1
GATE PI 2016
Numerical
+1
-0
A single point right handed turning tool is used for straight turning. The feed is $$0.25$$ $$mm/rev$$ and the uncut chip thickness is found to be $$0.25$$ $$mm.$$ The inclination angle of the main cutting edge is $${10^ \circ }.$$ The back rake angle (in degrees) is ________________
2
GATE PI 2016
Numerical
+2
-0
A cylindrical bar of $$100$$ $$mm$$ diameter is orthogonally straight turned with cutting velocity, feed and depth of cut of $$120$$ $$m/min$$, $$0.25$$ $$mm/rev$$ and $$4$$ $$mm,$$ respectively. The specific cutting energy of the work material is $$1 \times {10^9}\,\,J/{m^3}.$$ Neglect the contribution of feed force towards cutting power. The main or tangential cutting force (in $$N$$) is __________________
3
GATE PI 2016
Numerical
+2
-0
A $$60$$ $$mm$$ wide block of low carbon steel is face milled at a cutting speed of $$120$$ $$m/min,$$ feed of $$0.1$$ $$mm$$/tooth and axial depth of cut of $$4$$ $$mm.$$ A schematic representation of the face milling process is shown below. The diameter of the cutter is $$120$$ $$mm$$ and it has $$12$$ cutting edges. The material removal rate (in $$m{m^3}/s)$$ is __________
4
GATE PI 2016
+1
-0.3
Consider the following statements.
$$(P)$$ Computer aided process planning $$(CAPP)$$ takes input from material requirement plan $$(MRP).$$
$$(Q)$$ Production flow analysis helps in work cell formation.
$$(R)$$ Group technology takes input from choice of machining or cutting parameters.

Among the above statements, the correct one(s) is (are)

A
$$P$$ only
B
$$Q$$ and $$R$$ only
C
$$P$$ and $$R$$ only
D
$$Q$$ only
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