Description : In a CAD package, mirror image of a 2D point P (5, 10) is to be obtained about a line whichpasses through the origin and makes an angle of 45° counterclockwise with the X-axis. The coordinates of the transformed point will be a.(7.5, 5) b.(10, 5) c.(7.5, -5) d.(10, -5)
Last Answer : b.(10, 5)
Description : Axis-Symmetric element is Element a.1D b.2D c.3D d.4D
Last Answer : b.2D
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 : 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 : The window opened on the raster graphics screen in which the image will bedisplayed is called a.World co-ordinate system b.Screen co-ordinate system c.World window d.Interface window
Last Answer : d.Interface window
Description : What is the rectangle in the world defining the region that is to be displayed? a.World co-ordinate system b.Screen co-ordinate system c.World window d.Interface window
Last Answer : c.World window
Description : What is the name of the space in which the image is displayed? a.World co-ordinate system b.Screen co-ordinate system c.World window d.Interface window
Last Answer : b.Screen co-ordinate system
Description : The object space or the space in which the application model is defined is called a.World co-ordinate system b.Screen co-ordinate system c.World window d.Interface window
Last Answer : a.World co-ordinate system
Description : If two pure reflections about a line passing through the origin are appliedsuccessively the result is a.Pure rotation b.Quarter rotation c.Half rotation d.True reflection
Last Answer : a.Pure rotation
Description : Reflection about the line y=0, the axis, is accomplished with the transformationmatrix with how many elements as ‘0’? a.8 b.9 c.4 d.6
Last Answer : d.6
Description : Which of the following is NOT true?Image formed by reflection through a plane mirror is a.of same size b.same orientation c.is at same distance from the mirror d.virtual
Last Answer : b.same orientation
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 : In modeling of a tabulated cylinder, the plane of the curve is _______ a.along the curve b.normal to the curve c.along the axis of the cylinder d.perpendicular to the axis of the cylinder
Last Answer : d.perpendicular to the axis of the cylinder
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 : Which of the following can not be the input of CAD solid model? a.Physical mockup b.2D surface data c.Tooling d.3D CAD data
Last Answer : c.Tooling
Description : B-rep and C-Rep are the methods of a.solid modeling b.surface modeling c.wireframe modeling d.2D modeling
Last Answer : a.solid modeling
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 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 : 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 : Shearing and reflection are types of translation. a.TRUE b.FALSE c. d.
Last Answer : b.FALSE
Description : What is the determinant of the pure reflection matrix? a.1 b.0 c.-1 d.2
Last Answer : c.-1
Description : Reflection is a special case of rotation. a.TRUE b.FALSE c. d.
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 : ……… 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 : 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 : A line AB with end point A (2,3) & B (7,8) is to be rotated about origin by 300 inclockwise direction. Determine the coordinates of end points S of rotated line. a.(3.232, 2.598) b.(5.232, 3.598) c.(3.232, 1.298) d.(3.232, 1.598)
Last Answer : d.(3.232, 1.598)
Description : Rotation is simply---------object w.r.t origin or centre point. a.Turn b.Shift c.Compression d.Drag element
Last Answer : a.Turn
Description : From the following, which one will require 4 matrices to multiply to get the final position? a.Rotation about the origin b.Rotation about an arbitrary Point c.Rotation about an arbitrary line d.Scaling about the origin
Last Answer : b.Rotation about an arbitrary Point
Description : Circular motion along an axis is known as ____ in robotics. a.Pitch b.Roll c.Yaw d.None of the above
Last Answer : b.Roll
Description : Up and down motion along an axis known as ____ in robotics a.Pitch b.Roll c.Yaw d.None of the above
Last Answer : a.Pitch
Description : Which one of the process is subtractive prototyping? a.5 axis CNC Milling b.Fused Deposition Modeling c.Multi-Jet Modeling d.Stereolithography Apparatus
Last Answer : a.5 axis CNC Milling
Description : Incremental dimension in circular interpolation in X-axis is denoted by a.J b.I c.K d.None of the above
Last Answer : b.I
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 : Rotation of spindle is designated by one of the following axis: a.a-axis b.b-axis c.c-axis d.none of the mentioned
Last Answer : d.none of the mentioned
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 : From below, choose the condition for the axisymmetric element. a.Symmetric about axis b.Boundary conditions are symmetric about an axis c.Loading conditions are symmetric about an axis d.All the above
Last Answer : d.All the above
Description : Digit 5 in Opitz system is for_________ a.Part class b.Main shape c.Additional holes, teeth and forming d.Plane surface machining
Last Answer : c.Additional holes, teeth and forming
Description : Digit 4 in Opitz system is for_________ a.Part class b.Main shape c.Rotational machining d.Plane surface machining
Last Answer : d.Plane surface machining
Description : Digit 3 in Opitz system is for_________ a.Part class b.Main shape c.Rotational machining d.Plane surface machining
Last Answer : c.Rotational machining
Description : Digit 2 in Opitz system is for_________ a.Part class b.Main shape c.Rotational machining d.Plane surface machining
Last Answer : b.Main shape
Description : Digit 1 in Opitz system is for_________ a.Part class b.Main shape c.Rotational machining d.Plane surface machining
Last Answer : a.Part class
Description : In Opitz system, 2nd digit indicates a.Type and Shape b.External shape and external shape elements c.External plane surface finishing d.Auxiliary hole and gear teeth
Last Answer : b.External shape and external shape elements
Description : XY Plane Selection in CNC machining is done by….. a.G16 b.G17 c.G18 d.G19
Last Answer : b.G17
Description : The actual thickness of plane strain element is . a.very large b.very small c.assumed by software d.any of the above
Last Answer : a.very large
Description : When a thin plate is subjected to loading in its own plane only, the condition is called _ a.plane stress b.plane strain c.zero stress d.zero strain
Last Answer : a.plane stress
Description : A triangular plane stress element has how many degrees of freedom? a.3 b.4 c.5 d.6
Description : The ___________ is used to create a surface using curves that form closed boundaries a.ruled Surface b.plane Surface c.coons patch d.surface of Revolution
Last Answer : c.coons patch
Description : The is used to create a surface using curves that form closed boundaries. a.ruled Surface b.plane Surface c.coons patch d.surface of Revolution
Description : From the following, which is an axisymmetric surface? a.Plane Surface b.Ruled Surface c.Surface of Revolution d.All of the above
Last Answer : c.Surface of Revolution