Description : The matrix representation for translation in homogeneous coordinates is a.User Coordinate System b.World Coordinate System c.Screen Coordinate System d.None of the above
Last Answer : b.World Coordinate System
Description : What is the use of homogeneous coordinates and matrix representation? a.To treat all 3 transformations in a consistent way b.To scale c.To rotate d.To shear the object
Last Answer : a.To treat all 3 transformations in a consistent way
Description : The matrix representation for scaling in homogeneous coordinates is a.P’=S*P b.P’=R*P c.P’=dx+dy d.P’=S*S
Last Answer : a.P’=S*P
Description : If point are expressed in homogeneous coordinates then the pair of (x, y) isrepresented as a.(x’, y’, z’) b.(x, y, z) c.(x’, y’, w’) d.(x’, y’, w)
Last Answer : d.(x’, y’, w)
Description : For 2D transformation the value of third coordinate i.e. w (or h) =? a.1 b.0 c.-1 d.Any value
Last Answer : a.1
Description : We can combine the multiplicative and translational terms for 2D into a singlematrix representation by expanding a.2 x 2 matrix into 4x4 matrix b.2 x 2 matrix into 3 x 3 c.3 x 3 matrix into 2 x 2 d.Only c
Last Answer : b.2 x 2 matrix into 3 x 3
Description : From the following which type of work envelope is made in Cartesian coordinate robot. a.Square work envelope b.Spherical work envelope c.Cylindrical work envelope d.Rectangular work envelope
Last Answer : d.Rectangular work envelope
Description : Which type of motion is possible in polar coordinate robots? a.2 linear and 1 rotational motion b.3 linear motion c.3 rotational motion d.2 rotational and 1 linear motion
Last Answer : d.2 rotational and 1 linear motion
Description : Which type of motion is possible in cylindrical coordinate robots? a.3 rotational motion b.3 linear and 1 rotational motion c.2 linear and 1 rotational motion d.3 linear motion
Last Answer : c.2 linear and 1 rotational motion
Description : Which type of motion is possible in Cartesian coordinate robots? a.3 linear motion b.2 linear and 1 rotational motion c.3 rotational motion d.1 linear and 1 rotational motion
Last Answer : a.3 linear motion
Description : ……… is the origin of the coordinate system which is defined by manufacturer they cannotbe changed a.Blocking Point b.machine Zero Point c.Start Point d.Program Zero point
Last Answer : b.machine Zero Point
Description : Match the following: NC code DefinitionP. M05 1. Absolute coordinate system Q. G01 2. Dwell R. G04 3. Spindle stop S. G09 4. Linear interpolation a.P-2, Q-3, R-4, S-1 b.P-3, Q-4, R-1, S-2 c.P-3, Q-4, R-2, S-1 d.P-4, Q-3, R-2, S-1
Last Answer : c.P-3, Q-4, R-2, S-1
Description : The points in the entire structure are defined using the coordinates system is known as a.local coordinates system b.natural coordinates system c.global coordinate system d.none of the above
Last Answer : c.global coordinate system
Description : To find the nodal displacements in all parts of the element, are used. a.shape function b.node function c.element function d.coordinate function
Last Answer : a.shape function
Description : Coordinate of â- ABCD is WCS are: lowermost corner A(2,2) & diagonal corner are C(8,6). W.r.t MCS. The coordinates of origin of WCS system are (5,4). If the axes of WCS are at 600 in CCW w.r.t. the axes of MCS. Find new ... in MCS. a.(4.268, 6.732) b.(5.268, 6.732) c.(4.268, 4.732) d.(6.268, 4.732)
Last Answer : a.(4.268, 6.732)
Description : Polygons are translated by adding to the coordinate positionof each vertex and the current attribute setting. a.Straight line path b.Translation vector c.Differences d.Only b
Last Answer : d.Only b
Description : In which type of projection, actual dimensions and angles of objects and therefore shapescannot be preserved? a.User Coordinate System b.World Coordinate System c.Screen Coordinate System d.None of the above
Description : When every entity of a geometric model remains parallel to its initial position, thetransformation is called as a.User Coordinate System b.World Coordinate System c.Screen Coordinate System d.None of the above
Description : Which of the following is the default coordinate system? a.User Coordinate System b.World Coordinate System c.Screen Coordinate System d.None of the above
Description : Which coordinate system is a device-dependent coordinate system? a.World Coordinate System b.Model Coordinate System c.User Coordinate System d.Screen Coordinate System
Last Answer : d.Screen Coordinate System
Description : In Coordinates, a points in n-dimensional space is represent by(n+1) coordinates. a.Scaling b.Homogeneous c.Inverse transformation d.3D Transformation
Last Answer : b.Homogeneous
Description : In homogeneous coordinates value of ‘h’ is consider as 1 & it is called….. a.Magnitude Vector b.Unit Vector c.Non-Zero Vector d.Non-Zero Scalar Factor
Last Answer : d.Non-Zero Scalar Factor
Description : For 3D modeling of automobile body styling, which of the following is a preferredtechnique a.Constructive Solid Geometry b.Pure Primitive Instancing c.Boundary Representation d.Spatial Occupancy Enumeration
Last Answer : c.Boundary Representation
Description : For 3D modeling of automobile body styling, which of the following is a preferredtechnique? a.Constructive Solid Geometry b.Pure Primitive Instancing c.Boundary Representation d.Spatial Occupancy Enumeration
Description : The data representation of CSG objects is represented by a.a binary tree b.a boolean operation c.a primitive d.none of the above
Last Answer : a.a binary tree
Description : Secondary Linear Axes U,V & W are ……… to X,Y & Z-axis. a.Perpendicular b.Parallel c.Rotational d.All of the above
Last Answer : b.Parallel
Description : B rotational axis is rotation about Axis. a.X b.Y c.Z d.C
Last Answer : a.X
Description : Parametric equation for circle a.X=x+Rcosu; Y=y+Rsinu; Z=z b.X=Rcosu; Y=Rsinu; Z=z c.X=x+Rsinu; Y=y+Rcosu; Z=z d.X=Rsinu; Y=y+Rcosu; Z=z
Last Answer : a.X=x+Rcosu; Y=y+Rsinu; Z=z
Description : In STL files Euler’s rule for solids can be written as a.No. of faces †No. of edges + No. of vertices = 3 x No. of bodies b.No. of faces †No. of edges + No. of vertices = No. of bodies c.No. of ... = 2 x No. of bodies d.No. of faces †No. of edges + No. of vertices = 4 x No. of bodies
Last Answer : c.No. of faces – No. of edges + No. of vertices = 2 x No. of bodies
Description : A CNC Lathe is usually a machine tool with Z axes is….. a.Line Joining origin and vertical movement b.Line perpendicular to Y axis c.Both A & B d.Line Joining Chuck centre & tail stock centre
Last Answer : d.Line Joining Chuck centre & tail stock centre
Description : The distance of a given tool tip from the surface of workpiece is known as….. a.Tool length b.Tool length offset H c.Cutter radius d.Compensation
Last Answer : b.Tool length offset H
Description : A line AB with end points A (2, 1) & B (7, 6) is to be moved by 3 units in x-direction & 4units in y-direction. Calculate new coordinates of points B. a.(10, 2) b.(2, 10) c.(10, 10) d.(10, 5)
Last Answer : c.(10, 10)
Description : By changing the dimensions of the viewport, the and ofthe objects being displayed can be manipulated. a.Number of pixels and image quality b.X co-ordinate and Y co-ordinate c.Size and proportions d.All of these
Last Answer : c.Size and proportions
Description : If a ‘3 x 3’ matrix shears in Y direction, how many elements of it are ‘0’? a.2 b.3 c.6 d.5
Last Answer : d.5
Description : Which of the following represents shearing? a.(x, y) → (x+shx, y+shy) b.(x, y) → (ax, by) c.(x, y) → (x cos(θ)+y sin(θ), -x sin(θ)+y cos(θ)) d.(x, y) → (x+shy, y+shx)
Last Answer : d.(x, y) → (x+shy, y+shx)
Description : The polygons are scaled by applying the following transformation. a.X’=x * Sx + Xf(1-Sx) & Y’=y * Sy + Yf(1-Sy) b.X’=x * Sx + Xf(1+Sx) & Y’=y * Sy + Yf(1+Sy c.X’=x * Sx + Xf(1-Sx) & Y’=y * Sy – Yf(1-Sy) d.X’=x * Sx * Xf(1-Sx) & Y’=y * Sy * Yf(1-Sy)
Last Answer : a.X’=x * Sx + Xf(1-Sx) & Y’=y * Sy + Yf(1-Sy)
Description : Scaling of a polygon is done by computing a.The product of (x, y) of each vertex b.(x, y) of end points c.Center coordinates d.Only a
Last Answer : d.Only a
Description : In 2D-translation, a point (x, y) can move to the new position (x’, y’) by usingthe equation a.x’=x+dx and y’=y+dx b.x’=x+dx and y’=y+dy c.X’=x+dy and Y’=y+dx d.X’=x-dx and y’=y-dy
Last Answer : b.x’=x+dx and y’=y+dy
Description : We translate a two-dimensional point by adding a.Translation distances b.Translation difference c.X and Y d.Only a
Description : In a CNC program block, N05 GO1 G91 G33 X20 Z-40 K5……, K refer to a.Depth of cut b.Pitch c.Multiple Threading Cycle d.Feed
Last Answer : b.Pitch
Description : In a CNC program block, N05 GO1 G91 G33 X20 Z-40……, G33 refer to a.Peck Drilling b.Counter Boring c.Thread Cutting d.Grooving
Last Answer : c.Thread Cutting
Description : Rotation about Z-axis is called…………. a.a-axis b.b-axis c.c-axis d.none of the mentioned
Last Answer : c.c-axis
Description : Chain type coding structure is also known as________ a.Poly code b.Mono code c.Hybrid code d.Miscellaneous code
Last Answer : a.Poly code
Description : Cellular manufacturing is also known as_______ a.Manufacturing Technology b.Production Technology c.Group Technology d.None of the above
Last Answer : c.Group Technology
Description : ____ is also known as work volume of robot a.Work envelope b.Speed of movement c.Load carrying capacity d.Precision of movement
Last Answer : a.Work envelope
Description : In Selective Laser Sintering, laser light is also being used. a.TRUE b.FALSE c. d.
Last Answer : a.TRUE
Description : ……… are also called as parametric subroutines a.Micro b.Macro c.Sub Macro d.Sub Micro
Last Answer : b.Macro
Description : From the following, which method is also called as the Building Block Approach? a.Cellular Decomposition b.Spatial Occupancy Enumeration c.Generalized Sweeps d.Constructive Solid Geometry
Last Answer : d.Constructive Solid Geometry
Description : Shearing is also termed as a.Selecting b.Sorting c.Scaling d.Skewing
Last Answer : d.Skewing
Description : An ellipse can also be rotated about its center coordinates by rotating a.End points b.Major and minor axes c.Only a d.None
Last Answer : b.Major and minor axes