Description : The two-dimensional rotation equation in the matrix form is a.P’=T+P b.P’=S*P c.P’=R*P d.P’=dx+dy
Last Answer : c.P’=R*P
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 : 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
Last Answer : a.P’=P+T
Description : The objects transformed using the equation P’=S*P should be a.Scaled b.Repositioned c.Both a and b d.Neither a nor b
Last Answer : c.Both a and b
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 : To generate a rotation , we must specify a.Rotation angle θ b.Distances dx and dy c.Rotation distance d.All of the mentioned
Last Answer : a.Rotation angle θ
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
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 : 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 : 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 : 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 : The process of mapping a world window in World Coordinates to the Viewportis called Viewing transformation. a.TRUE b.FALSE c. d.
Last Answer : a.TRUE
Description : Which transformation distorts the shape of an object such that the transformed shapeappears as if the object were composed of internal layers that had been caused to slide over each other? a.Rotation b.Scaling up c.Scaling down d.Shearing
Last Answer : d.Shearing
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 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 : 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 : 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 finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right ... , 5), (5, 5) d.(5, 5), (45, 5), (45, 25), (5, 25), (5, 5)
Last Answer : a.(-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5)
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 : Write parametric equation of line having end points P1(3,5,8) and P2 (6,4,3). a.[3 5 8]+u[3 -1 -5] b.[3 5 8]+u[3 1 5] c.[3 8 5]+u[3 -1 -5] d.[3 5 8]+u[-3 1 5]
Last Answer : a.[3 5 8]+u[3 -1 -5]
Description : If `y(x)` is the solution of the differential equation `(dy)/(dx)=-2x(y-1)` with `y(0)=1`, then `lim_(xrarroo)y(x)` equals
Last Answer : If `y(x)` is the solution of the differential equation `(dy)/(dx)=-2x(y-1)` with `y(0)=1`, then `lim_(xrarroo)y(x)` equals
Description : Which of the following is a differential equation for deflection? a.dy / dx = (M/EI) b. dy / dx = (MI/E) c.d2y / dx2 = (M/EI) d.d2y / dx2 = (ME/I)
Last Answer : c.d2y / dx2 = (M/EI)
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 : Full form of STL is _____ a.Straight-lithography b.Streto-lithography c.Stereo-lithography d.Straight-lipsography
Last Answer : c.Stereo-lithography
Description : In truss analysis, the reactions can be found by using the equation . a.R=KQ+F b.R=KQ-F c.R=K+QF d.R=K-QF
Last Answer : b.R=KQ-F
Description : To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following? a.B-spline curve b.Hermite Cubic Spline Curve c.Beizer curve d.none of the above
Last Answer : b.Hermite Cubic Spline Curve
Description : Find parametric equation for Y-coordinates of Hermite cubic spline curve having endpoints P0[4,4]; P1[8,5] a.2u3-3u2+2u+4 b.3u3-2u2-2u-4 c.2u3-3u2-2u-4 d.2u3+3u2+2u+4
Last Answer : a.2u3-3u2+2u+4
Description : Find parametric equation for X-coordinates of hermite cubic spline curve having endpoints P0[4,4]; P1[8,5] a.-5u3+8u2+u+1 b.5u3+8u2+u+1 c.8u3-5u2-u+1 d.8u3+5u2+u+1
Last Answer : a.-5u3+8u2+u+1
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 : To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following a.B-spline curve b.Hermite Cubic Spline Curve c.Beizer curve d.none of the above
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 : General pivot point rotation can be expressed as a.T(zr,yr).R(θ).T(-zr,-yr) = R(xr,yr,θ) b.T(xr,yr).R(θ).T(-xr,-yr) = R(xr,yr,θ) c.T(xr,yr).R(θ).T(-xr,-yr) = R(zr,yr,θ) d.T(xr,yr).R(θ).T(-xr,-yr) = R(zr,yr,θ)
Last Answer : b.T(xr,yr).R(θ).T(-xr,-yr) = R(xr,yr,θ)
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 : Pick out the wrong statement. (A) The shear stress at the pipe (dia = D, length = L) wall in case of laminar flow of Newtonian fluids is (D/4L). ∆p (B) In the equation, T. gc = k. ... to motion (D) With increase in the Mach number >0.6, the drag co-efficient decreases in case of compressible fluids
Last Answer : (D) With increase in the Mach number >0.6, the drag co-efficient decreases in case of compressible fluids
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 : Which one of the following statements is TRUE? a.Teach pendant is used for lead-through teaching. b.Teach pendant is used for manual teaching. c.Teach pendant is used for off-line teaching of robots. d.Teach pendant is not used in robot teaching.
Last Answer : b.Teach pendant is used for manual teaching.
Description : Which layout is mostly used for the batch type of production? a.Product layout b.Process layout c.In line layout d.None of the above
Last Answer : b.Process layout
Description : From the following in which FMS layout workstations are arranged in a loop a.Ladder layout b.In line layout c.Loop layout d.None of the above
Last Answer : c.Loop layout
Description : From the following which is the type of FMS layout a.In line layout b.Ladder layout c.Both A &B d.None of the above
Last Answer : c.Both A &B
Description : Which layout is mostly used for batch type of production? a.Product layout b.Process layout c.In line layout d.None of the above
Description : Which one is NOT related to rapid prototyping definition? a.Layer by layer b.Physical model c.From 3D CAD data d.Production line
Last Answer : d.Production line
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 : 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 coordinates of points on line having end points P1(3,5,8) and P2 (6,4,3) at u=0.25 a.[3.75 4.25 6.25] b.[3.25 4.25 6.25] c.[3.75 4.75 6.75] d.[4.25 3.75 6.25]
Last Answer : c.[3.75 4.75 6.75]
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 : Which one of the following does not belong to the family of conics? a.Parabola b.Ellipse c.Hyperbola d.Line
Last Answer : d.Line
Description : Which of the following is not an analytical entity? a.Line b.Circle c.Spline d.Parabola
Last Answer : c.Spline
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)