1
GATE ME 2012
MCQ (Single Correct Answer)
+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
$$240$$
2
GATE ME 2008
MCQ (Single Correct Answer)
+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
3
GATE ME 2007
MCQ (Single Correct Answer)
+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.
4
GATE ME 2006
MCQ (Single Correct Answer)
+1
-0.3
$$NC$$ contouring is an example of
A
continuous path positioning
B
point to point positioning
C
absolute positioning
D
incremental positioning
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Turbo Machinery
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