1
GATE ME 2014 Set 1
+1
-0.3
For machining a rectangular island represented by coordinates
$$P(0,0), Q(100,0), R(100,50)$$ and $$S(0,50)$$ on a casting using $$CNC$$ milling machine, an end mill with a diameter of $$16$$ $$mm$$ is used. The trajectory of the cutter center to machine the island $$PQRS$$ is
A
$$\left( { - 8, - 8} \right),\,\,\left( {108, - 8} \right),\,\,\left( {105,58} \right),\,\,\left( { - 8,58} \right),\,\,\left( { - 8, - 8} \right)$$
B
$$\left( {8,8} \right),\,\,\left( {94,8} \right),\,\,\left( {94,44} \right),\,\,\left( {8,44} \right),\,\,\left( {8,8} \right)$$
C
$$\left( { - 8,8} \right),\,\,\left( {94,0} \right),\,\,\left( {94,44} \right),\,\,\left( {8,44} \right),\,\,\left( { - 8,8} \right)$$
D
$$\left( {0,0} \right),\,\,\left( {100,0} \right),\,\,\left( {100,50} \right),\,\,\left( {50,0} \right),\,\,\left( {0,0} \right)$$
2
GATE ME 2012
+1
-0.3
A $$CNC$$ vertical milling machine has to cut a straight slot of $$10$$ $$mm$$ width and $$2$$ $$mm$$ depth by a cutter of $$10$$ $$mm$$ diameter between points $$(0, 0)$$ and $$(100, 100)$$ on the $$XY$$ plane (dimensions in $$mm$$). The feed rate used for milling is $$50$$ $$mm/min.$$ Milling time for the slot (in seconds) is
A
$$120$$
B
$$170$$
C
$$180$$
D
$$240$$
3
GATE ME 2008
+1
-0.3
For generating coon's surface we require
A
a set of grid points on the surface
B
a set of grid control points
C
four bounding curves defining the surface
D
two bounding curves and a set of grid control points
4
GATE ME 2007
+1
-0.3
Which type of motor is used in axial or spindle drives of $$CNC$$ m/c tools
A
Induction motors
B
$$DC$$ servomotors
C
Stepper motor
D
Linear servo motor.
GATE ME Subjects
Engineering Mechanics
Strength of Materials
Theory of Machines
Engineering Mathematics
Machine Design
Fluid Mechanics
Turbo Machinery
Heat Transfer
Thermodynamics
Production Engineering
Industrial Engineering
General Aptitude
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