1
GATE ME 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
The main cutting force acting on a tool during the turning (orthogonal cutting) operation of a metal is $$400N.$$ The turning was performed using $$2mm$$ depth of cut and $$0.1mm/rev$$ feed rate. The specific cutting pressure (in $$N/m{m^2}$$ is
A
$$1000$$
B
$$2000$$
C
$$3000$$
D
$$4000$$
2
GATE ME 2014 Set 4
MCQ (Single Correct Answer)
+1
-0.3
Better surface finish is obtained with a large rake angle because
A
the area of shear plane decreases resulting in the decrease in shear force and cutting force
B
the tool becomes thinner and the cutting force is reduced
C
less heat is accumulated in the cutting zone
D
the friction between the chip and the tool is less
3
GATE ME 2014 Set 3
Numerical
+1
-0
A straight turning operation is carried out using a single point cutting tool on an $$AISI$$ $$1020$$ steel rod. The feed is $$0.2$$ $$mm/rev$$ and the depth of cut is $$0.5$$ $$mm.$$ The tool has a side cutting edge angle of $${60^ \circ }.$$ The uncut chip thickness (in $$mm$$) is _______________
Your input ____
4
GATE ME 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Cutting tool is much harder than the work piece. Yet the tool wears out during the tool-work interaction, because
A
Extra hardness is imparted to the work piece due to coolant used
B
Oxide layers on the work piece surface impart extra hardness to it
C
Extra hardness is imparted to the work piece due to severe rate of strain
D
Vibration is induced in the machine tool
GATE ME Subjects
Turbo Machinery
EXAM MAP