Description : A translation is applied to an object by D a.Repositioning it along with straight line path b.Repositioning it along with circular path c.Only b d.All of the mentioned
Last Answer : a.Repositioning it along with straight line path
Description : A straight line segment is translated by applying the transformation equation a.P’=P+T b.Dx and Dy c.P’=P+P d.Only c
Last Answer : a.P’=P+T
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 : We translate a two-dimensional point by adding a.Translation distances b.Translation difference c.X and Y d.Only a
Last Answer : d.Only a
Description : A two dimensional rotation is applied to an object by a.Repositioning it along with straight line path b.Repositioning it along with circular path c.Only b d.Any of the mentioned
Last Answer : c.Only b
Description : The translation distances (dx, dy) is called as a.Translation vector b.Shift vector c.Both a and b d.Neither a nor b
Last Answer : c.Both a and b
Description : Which co-ordinates allow common vector operations such as translation, rotation,scaling and perspective projection to be represented as a matrix by which the vector is multiplied? a.vector co-ordinates b.3D co-ordinates c.affine co-ordinates d.homogenous co-ordinates
Last Answer : d.homogenous co-ordinates
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
Description : What type of inner structure can be used to reduce the printing time of the model in RP? a.Higher resolution b.Smaller polygons c.Lower resolution d.None of the above
Last Answer : c.Lower resolution
Description : What type of inner structure makes the smoothest model in RP? a.Higher resolution b.Larger polygons c.Lower resolution d.None of the above
Last Answer : a.Higher resolution
Description : STL file converts curved surfaces into_______ a.Polygons b.Lines c.Surfaces d.None of the above
Last Answer : a.Polygons
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 : For Q 45, Tangent vector for line L2 a.i+4j-k b.2i+4j+k c.i-4j-2k d.i+4j+2k
Last Answer : d.i+4j+2k
Description : Two lines L1 and L2 having Parametric equations are P1=[3 4 7]+u[2 2 -6] and P2=[15 -2]+u[1 4 2]. Tangent vector for line L1 a.2i+2j-6k b.2i+2j+6k c.2i-2j-6k d.6-2j-2k
Last Answer : a.2i+2j-6k
Description : Find the tangent vector of line having end points P1(3,5,8) and P2 (6,4,3) a.3i+j-5k b.3i-j-5k c.3i-j+5k d.-3i-j-5k
Last Answer : b.3i-j-5k
Description : The unit vector in the direction of the line is defined as . a.tangent vector+length of the line b.tangent vector-length of the line c.tangent vector/length of the line d.length of the line/tangent vector
Last Answer : c.tangent vector/length of the line
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 : The general homogeneous coordinate representation can also be written as a.(h.x, h.y, h.z) b.(h.x, h.y, h) c.(x, y, h.z) d.(x,y,z)
Last Answer : b.(h.x, h.y, h)
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 : 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 : A figure in the coordinate plane is reflected across the line y=x+2 and then across the line y=x+4. what is the translation vector that describes the composition of the reflections Give your answer in vector format?
Last Answer : 6
Description : From the following in which FMS layout machine tools are kept along a straight line. a.Loop layout b.In line layout c.Ladder layout d.Open field layout
Last Answer : b.In line layout
Description : Shearing and reflection are types of translation. a.TRUE b.FALSE c. d.
Last Answer : b.FALSE
Description : The transformation that is used to alter the size of an object is a.Scaling b.Rotation c.Translation d.Reflection
Last Answer : a.Scaling
Description : Positive values for the rotation angle θ defines a.Counter clockwise rotations about the end points b.Counter clockwise translation about the pivot point c.Counter clockwise rotations about the pivot point d.Negative direction
Last Answer : c.Counter clockwise rotations about the pivot point
Description : The rotation axis that is perpendicular to the xy plane and passes through the pivot pointis known as a.Rotation b.Translation c.Scaling d.Shearing
Last Answer : a.Rotation
Description : The basic geometric transformations are a.Translation b.Rotation c.Scaling d.All of the mentioned
Last Answer : d.All of the mentioned
Description : -------is a rigid body transformation that moves objects without deformation. a.Rotation b.Scaling c.Translation d.All of the mentioned
Last Answer : c.Translation
Description : The two-dimensional translation equation in the matrix form is a.P’=P+T b.P’=P-T c.P’=P*T d.P’=P
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 : Path followed by water jet issuing from the bottom of a water tank will be a (A) Parabola (vertex being at the opening) (B) Hyperbola (C) Horizontal straight line (D) Zig-zag path (which is geometrically undefined)
Last Answer : (A) Parabola (vertex being at the opening)
Description : Any convenient co-ordinate system or Cartesian co-ordinates which can be usedto define the picture is called a.spherical co-ordinates b.vector co-ordinates c.viewport co-ordinates d.world co-ordinates
Last Answer : d.world co-ordinates
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 : The machine tool, in which calculation and setting of the operating conditions like depth ofcut, feed, speed are done during the machining by the control system itself, is called a.Computer Numerical Control System b.Direct Numerical Control System c.Machining Center System d.Adaptive Control System
Last Answer : d.Adaptive Control System
Description : Among the following, which one is the earliest step in Data Processing for RapidPrototyping? a.Model slicing b.Part orientation c.Tool path generation d.Support generation
Last Answer : b.Part orientation
Description : Among the following, which one is the last step in Data Processing for Rapid Prototyping? a.Model slicing b.Part orientation c.Tool path generation d.Support generation
Last Answer : c.Tool path generation
Description : NC contouring is an example of a.Continuous path positioning b.Point-to-point positioning c.Absolute positioning d.Incremental positioning
Last Answer : a.Continuous path positioning
Description : The tool of an NC machine has to move along a circular arc from (5, 5) to (10, 10) while performing an operation. The centre of the arc is at (10, 5). Which one of the following NC tool path command performs the ... b.N010 GO3 X10 Y10 X5 Y5 R5 c.N010 GO1 X5 Y5 X10 Y10 R5 d.N010 GO2 X5 Y5 X10 Y10 R5
Last Answer : a.N010 GO2 X10 Y10 X5 Y5 R5
Description : n an NC machining operation, the tool has to be moved from point (5, 4) to point (7, 2) alonga circular path with centre at (5, 2). Before starting the operation, the tool is at (5, 4). The G and N codes for this motion ... 0 I5.0 J2.0 c.N010 GO1 X7.0 Y2.0 I5.0 J2.0 d.N010 GOO X7.0 Y2.0 I5.0 J2.0
Last Answer : b.N010 GO2 X7.0 Y2.0 I5.0 J2.0