1
GATE ME 2017 Set 1
+2
-0.6
Circular arc on a part profile is being machined on a vertical $$CNC$$ milling machine. $$CNC$$ part program using metric units with absolute dimensions is listed below:

\eqalign{ & N60\,\,\,\,G01\,\,\,\,X\,30\,\,\,\,Y\,55\,\,\,\,Z\,5\,\,\,\,F50 \cr & N70\,\,\,\,G02\,\,\,X\,50\,\,\,\,Y\,35\,\,\,\,R\,20 \cr & N80\,\,\,\,G01\,\,\,\,Z\,5 \cr}

The coordinates of the center of the circular arc are:

A
$$(30, 55)$$
B
$$(50, 55)$$
C
$$(50, 35)$$
D
$$(30, 35)$$
2
GATE ME 2016 Set 3
+2
-0.6
A point $$P\left( {1,\,\,\,3,\,\,\, - 5} \right)$$ is translated by $$2\widehat i + 3\widehat j - 4\widehat k$$ and then rotated counter clockwise by $${90^ \circ }$$ about the $$z$$-axis. The new position of the point is
A
$$\left( { - 6,3, - 9} \right)$$
B
$$\left( { - 6, - 3, - 9} \right)$$
C
$$\left( {6,3, - 9} \right)$$
D
$$\left( {6,3,9} \right)$$
3
GATE ME 2016 Set 1
+2
-0.6
The figure below represents a triangle $$PQR$$ with initial coordinates of the vertices as $$P(1,3),$$ $$Q(4,5)$$ and $$R(5,3.5).$$ The triangle is rotated in the $$X-Y$$ plane about the vertex $$P$$ by angle in clockwise direction. If sin $$\theta = 0.6$$ and cos $$\theta = 0.8$$, the new coordinates of the vertex $$Q$$ are
A
$$(4.6, 2.8)$$
B
$$(3.2, 4.6)$$
C
$$(7.9, 5.5)$$
D
$$(5.5, 7.9)$$
4
GATE ME 2015 Set 3
+2
-0.6
In a $$CNC$$ milling operation, the tool has to machine the circular arc from point $$(20, 20)$$ to $$(10, 10)$$ at sequence number $$5$$ of the $$CNC$$ part program. If the center of the arc is at $$(20, 10)$$ and the machine has incremental mode of defining position coordinates, the correct tool path command is
A
$$N\,05\,\,\,G90\,\,\,G01\,\,\,X - 10\,\,\,Y - 10\,\,\,R10$$
B
$$N\,05\,\,\,G91\,\,\,G03\,\,\,X - 10\,\,\,Y - 10\,\,\,R10$$
C
$$N\,05\,\,\,G90\,\,\,G03\,\,\,X20\,\,\,Y20\,\,\,R10$$
D
$$N\,05\,\,\,G91\,\,\,G02\,\,\,X20\,\,\,Y20\,\,\,R10$$
GATE ME Subjects
EXAM MAP
Medical
NEET