In synthetic curves, second-order continuity yields
A.
a position continuous curve
B.
a slope continuous curve
C.
a curvature continuous curve
D.
none of the above
Answer»
C. a curvature continuous curve
102.
Mathematically, the ellipse is a curve generated by a point moving in space such that
at any position the sum of its distances from two fixed points (foci) is constant and equal to
A.
the major diameter
B.
the minor diameter
C.
semi major diameter
D.
semi-minor diameter
Answer»
A. the major diameter
103.
When a smooth curve is approximated through the data points, then the curve is
known as
A.
interpolant curve
B.
approximation curve
C.
pitch curve
D.
data curve
Answer»
B. approximation curve
104.
In Beizer Curve, the curve follows
A.
the control points
B.
the shape of the defining polygon
C.
the defining points
D.
none of the above
Answer»
B. the shape of the defining polygon
105.
In Beizer Curve, the flexibility of the shape would increase with
A.
decrease in the number of vertices
B.
increase in the number of vertices
C.
decrease in control points
D.
none of the above
Answer»
B. increase in the number of vertices
106.
The number of control points can be added or
subtracted in .
A.
Bezier curve
B.
B-spline curve
C.
Cubic spline curve
D.
all of the above
Answer»
B. B-spline curve
107.
The degree of the curve is independent of the number of control points in .
A.
Hermite cubic spline curve
B.
Bezier curve
C.
B-spline curve
D.
Hyperbola
Answer»
C. B-spline curve
108.
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
Answer»
C. coons patch
109.
B-rep and C-Rep are the methods of
A.
solid modeling
B.
surface modeling
C.
wireframe modeling
D.
2D modeling
Answer»
A. solid modeling
110.
Which kind of model can store information about geometry
A.
Solid model
B.
Surface model
C.
Wireframe model
D.
none of the above
Answer»
A. Solid model
111.
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
Answer»
D. Constructive Solid Geometry
112.
Structuring and combining the primitives of the solid model in the graphics database,
is achieved by the use of…..
A.
FEA
B.
transformations
C.
boolean operations
D.
none of the above
Answer»
C. boolean operations
113.
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
Answer»
A. a binary tree
114.
is an extension of the wireframe model with additional face information added.
A.
CSG
B.
B-rep
C.
Loft
D.
none of the above
Answer»
B. B-rep
115.
For 3D modeling of automobile body styling, which of the following is a preferred
technique?
A.
Constructive Solid Geometry
B.
Pure Primitive Instancing
C.
Boundary Representation
D.
Spatial Occupancy Enumeration
Answer»
C. Boundary Representation
116.
Which of the following uses a number of two-dimensional profiles for generating a
three-dimensional object?
A.
Tweaking
B.
Lofting
C.
Filleting
D.
none of the above
Answer»
B. Lofting
117.
To create a hollow part, which of the following command would be most efficient?
A.
Extrude
B.
Sweep
C.
Shell
D.
Revolve
Answer»
C. Shell
118.
The curve is defined as the locus of a point moving with _ degree of freedom
A.
0
B.
1
C.
2
D.
3
Answer»
B. 1
119.
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]
Answer»
A. [3 5 8]+u[3 -1 -5]
120.
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
Answer»
B. 3i-j-5k
121.
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]
Answer»
C. [3.75 4.75 6.75]
122.
Two lines are parallel when
A.
P1 X P2=0
B.
P1 . P2=0
C.
P1 = P2
D.
P1+ P2=0
Answer»
A. P1 X P2=0
123.
Two lines L1 and L2 having Parametric equations are P1=[3 4 7]+u[2 2 -6] and P2=[1
5 -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
Answer»
A. 2i+2j-6k
124.
For Q 45, Tangent vector for line L2
A.
i+4j-k
B.
2i+4j+k
C.
i-4j-2k
D.
i+4j+2k
Answer»
D. i+4j+2k
125.
For Q 45, Lines are perpendicular?
A.
True
B.
False
C.
D
Answer»
B. False
126.
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
Answer»
A. X=x+Rcosu; Y=y+Rsinu; Z=z
127.
Center point of circle
A.
[x1+x2]/2; [y1+y2]/2; [z1+z2]/2
B.
[x1-x2]/2; [y1-y2]/2; [z1-z2]/2
C.
[x1-x2]; [y1-y2]; [z1-z2]
D.
[x2-x1]; [y2-y1]; [z2-z1]
Answer»
A. [x1+x2]/2; [y1+y2]/2; [z1+z2]/2
128.
A circle is represented by center point [5,5] and radius 6 units. Find the parametric
equation of circle and determine the various points on circle in first quadrant if increment in angle by 45o
A.
9.24,9.24
B.
9.42,9.42
C.
9,9
D.
11,5
Answer»
A. 9.24,9.24
129.
A circle is passing through two end points A[6,4] and B[10,10]. Find center point of
circle
A.
7,8
B.
8,8
C.
8,7
D.
7,7
Answer»
C. 8,7
130.
For Q 51, find radius of circle
A.
3
B.
3.6
C.
4
D.
3.5
Answer»
B. 3.6
131.
For Q 51, find coordinates of point on circle at u=0
A.
11.6, 7
B.
7, 11
C.
11, 7
D.
11.5, 7.5
Answer»
A. 11.6, 7
132.
Find parametric equation for X-coordinates of hermite cubic spline curve having end
points 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
Answer»
A. -5u3+8u2+u+1
133.
Find parametric equation for Y-coordinates of Hermite cubic spline curve having end
points 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
Answer»
A. 2u3-3u2+2u+4
134.
C0 continuity refers to
A.
Common tangent
B.
Common curvature
C.
Common point
D.
Common normal
Answer»
C. Common point
135.
C‘ continuity refers to
A.
Common tangent
B.
Common curvature
C.
Common point
D.
Common normal
Answer»
B. Common curvature
136.
C” continuity refers to
A.
Common tangent
B.
Common curvature
C.
Common point
D.
Common normal
Answer»
A. Common tangent
137.
Which of the following is not a method to describe a curve mathematically?
A.
Explicit form
B.
Laplace form
C.
Implicit form
D.
Parametric form
Answer»
B. Laplace form
138.
When the curve passes through all the data points, then the curve is known as
A.
approximation curve
B.
pitch curve
C.
data curve
D.
interpolant curve
Answer»
D. interpolant curve
139.
When a smooth curve is approximated through the data points, then the curve is known
as
A.
approximation curve
B.
pitch curve
C.
data curve
D.
interpolant curve
Answer»
A. approximation curve
140.
Synthetic curve pass through defined data points and thus can be represented by
A.
polynomial equations
B.
exponential equations
C.
partial differential equations
D.
differential equations
Answer»
A. polynomial equations
141.
Mathematically, the ellipse is a curve generated by a point moving in space such that at
any position the sum of its distances from two fixed points (foci) is constant and equal to
A.
the major diameter
B.
the minor diameter
C.
semi major diameter
D.
semi-minor diameter
Answer»
A. the major diameter
142.
The parabola is defined mathematically as a curve generated by a point that moves such
that its distance from the focus is always__________the distance to the directrix
A.
larger than
B.
smaller than
C.
equal to
D.
none of the above
Answer»
C. equal to
143.
In synthetic curves, zero-order continuity yields
A.
a position continuous curve
B.
a slope continuous curve
C.
a curvature continuous curve
D.
none of the above
Answer»
A. a position continuous curve
144.
In synthetic curves, first-order continuity yields
A.
a position continuous curve
B.
a slope continuous curve
C.
a curvature continuous curve
D.
none of the above
Answer»
B. a slope continuous curve
145.
The B-spline curve has a
A.
first-order continuity
B.
second-order continuity
C.
zero-order continuity
D.
none of the above
Answer»
B. second-order continuity
146.
To determine the coefficients of the equation – two end-points and the two tangent
vectors. 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
Answer»
B. Hermite Cubic Spline Curve
147.
The Bezier curve is smoother than the Hermite cubic spline because it has _________ order
derivatives.
A.
lower
B.
higher
C.
lower and higher both
D.
none of the above
Answer»
B. higher
148.
In the bezier curve, the curve is always________to first and last segments of the polygon
A.
normal
B.
parallel
C.
tangent
D.
none of the above
Answer»
C. tangent
149.
________curves allow local control of the curve.
A.
Analytical
B.
Hermite cubic spline
C.
Beizer
D.
B-Spline
Answer»
D. B-Spline
150.
In Beizer Curve, the curve follows __________
A.
the control points
B.
the shape of the defining polygon
C.
the defining points
D.
none of the above
Answer»
B. the shape of the defining polygon
151.
In Beizer Curve, the flexibility of the shape would increase with _______ of the polygon.
A.
decrease in the number of vertices
B.
increase in the number of vertices
C.
decrease in control points
D.
none of the above
Answer»
B. increase in the number of vertices
152.
The degree of the curve is independent of the number of control points in _____
A.
Hermite cubic spline curve
B.
Bezier curve
C.
B-spline curve
D.
Hyperbola
Answer»
C. B-spline curve
153.
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
Answer»
D. perpendicular to the axis of the cylinder
154.
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
Answer»
C. coons patch
155.
________ command gives an array of object in 3D modeling
A.
Extrude
B.
Revolve
C.
Pattern
D.
All of the above
Answer»
C. Pattern
156.
To create a hollow part, which of the following command would be most efficient
A.
Extrude
B.
Sweep
C.
Shell
D.
Revolve
Answer»
C. Shell
157.
A cylinder can be created by drawing a rectangular shape using the ________ tool.
A.
revolve
B.
sweep
C.
extrude
D.
all of the above
Answer»
A. revolve
158.
For 3D modeling of automobile body styling, which of the following is a preferred
technique
A.
Constructive Solid Geometry
B.
Pure Primitive Instancing
C.
Boundary Representation
D.
Spatial Occupancy Enumeration
Answer»
C. Boundary Representation
Chapter: FEA
159.
What is the full form of FEA
A.
Fracture Element Analysis
B.
Finite Element Analysis
C.
Future Electronic Analysis
D.
None of the above
Answer»
B. Finite Element Analysis
160.
From the following, which type of element is not two dimensional?
A.
Tetrahedron
B.
Quadrilateral
C.
Parallelogram
D.
Rectangle
Answer»
A. Tetrahedron
161.
For truss analysis, which type of elements is used?
A.
Triangle
B.
Parallelogram
C.
Rectangle
D.
Bar
Answer»
D. Bar
162.
To solve the FEM problem, it subdivides a large problem into smaller, simpler parts that are
called
A.
static elements
B.
dynamic elements
C.
infinite elements
D.
finite elements
Answer»
D. finite elements
163.
The art of subdividing the structure into a convenient number of smaller elements is known
as
A.
discretization
B.
assemblage
C.
continuum
D.
traction
Answer»
A. discretization
164.
The sum of the shape function is equal to
A.
0
B.
0.5
C.
1
D.
2
Answer»
C. 1
165.
A triangular plane stress element has how many degrees of freedom?
A.
3
B.
4
C.
5
D.
6
Answer»
D. 6
166.
Number of displacement polynomials used for an element depends on .
A.
nature of element
B.
type of an element
C.
degrees of freedom
D.
nodes
Answer»
C. degrees of freedom
167.
On gathering stiffness and loads, the system of equations is given by
A.
KQ=F
B.
KQ≠F
C.
K=QF
D.
K≠QF
Answer»
A. KQ=F
168.
The finite element method is mostly used in the field of
A.
structural mechanics
B.
classical mechanics
C.
applied mechanics
D.
engineering mechanics
Answer»
D. engineering mechanics
169.
In FEA, the sub domains are called as .
A.
particles
B.
molecules
C.
elements
D.
none
Answer»
C. elements
170.
The numbers of node for 1 D element are
A.
1
B.
2
C.
3
D.
0
Answer»
B. 2
171.
Finite element analysis deals with .
A.
approximate numerical solution
B.
non-boundary value problems
C.
Laplace equations
D.
All of the above
Answer»
A. approximate numerical solution
172.
Stiffness matrix depends on
A.
material
B.
geometry
C.
both material and geometry
D.
none of the above
Answer»
C. both material and geometry
173.
Example of 2-D Element is .
A.
bar
B.
triangle
C.
hexahedron
D.
tetrahedron
Answer»
B. triangle
174.
For 1-D bar elements if the structure is having 3 nodes then the stiffness matrix formed is
having an order of
A.
2*2
B.
3*3
C.
4*4
D.
6*6
Answer»
B. 3*3
175.
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
Answer»
A. shape function
176.
The nature of loading at various locations and other surfaces conditions called
A.
friction
B.
traction
C.
boundary condition
D.
surfacing
Answer»
C. boundary condition
177.
The truss element can resist only
A.
surface force
B.
axial force
C.
point load
D.
none of the above
Answer»
B. axial force
178.
The truss element can deform only in the
A.
vertical direction
B.
horizontal direction
C.
inclined direction
D.
axial direction
Answer»
D. axial direction
179.
Example for one – Dimensional element is .
A.
triangular element
B.
brick element
C.
truss element
D.
axisymmetric element
Answer»
C. truss element
180.
The determinant of an element stiffness matrix is always
A.
3
B.
2
C.
1
D.
0
Answer»
D. 0
181.
How many nodes are there in a 3-D brick element?
A.
3
B.
6
C.
8
D.
9
Answer»
C. 8
182.
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
Answer»
D. All the above
183.
Axis-Symmetric element is Element
A.
1D
B.
2D
C.
3D
D.
4D
Answer»
B. 2D
184.
is/are the phase/s of finite element method
A.
Pre-processing
B.
Solution
C.
Post Processing
D.
None
Answer»
C. Post Processing
185.
The minimum number of dimensions are required to define the position of a point in space
is .
A.
3
B.
4
C.
1
D.
2
Answer»
A. 3
186.
The finite element methods can be applied in ---------areas.
A.
thermal
B.
soil and rock mechanics
C.
vibration
D.
all of the above
Answer»
D. all of the above
187.
If the structure is more complex in order to simplify the model, we need to subdivide
the structure into substructures. These substructures are termed as .
A.
elements
B.
modules
C.
links
D.
models
Answer»
B. modules
188.
Which of the following is not a method for calculation of the stiffness matrix?
A.
The minimum potential energy principle
B.
Galerkin's principle
C.
Weighted residual method
D.
Inverse matrix method
Answer»
D. Inverse matrix method
189.
is defined as the ratio of the largest dimension of the
element to the smallest dimension.
A.
Element depth ratio
B.
Mode shape ratio
C.
Aspect ratio
D.
None of the above
Answer»
C. Aspect ratio
190.
are used to express the geometry or shape of the
element
A.
Mode shapes
B.
Shape functions
C.
Natural curves
D.
None of the above
Answer»
B. Shape functions
191.
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
Answer»
A. plane stress
192.
The characteristic of the shape function is
A.
the shape function has a unit value at one nodal point and zero value at the other nodes
B.
the sum of the shape function is equal to one
C.
both a & b
D.
None of the above
Answer»
C. both a & b
193.
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
Answer»
C. global coordinate system
194.
The applications of the Finite Element Method in two-dimensional analyses are .
A.
stretching of plates
B.
gravity of dams
C.
axisymmetric shells
D.
all of the above
Answer»
C. axisymmetric shells
195.
If the body is in a state of equilibrium then the energy is minimum. This statement is
considered in .
A.
inverse matrix method
B.
weighted residual method
C.
Galerkin’s principle
D.
the minimum potential energy principle
Answer»
D. the minimum potential energy principle
196.
Which of the following is true for the stiffness matrix (K)?
A.
K is a banded matrix
B.
K is un-symmetric
C.
K is an un-banded matrix
D.
none of the above
Answer»
A. K is a banded matrix
197.
The actual thickness of plane strain element is .
A.
very large
B.
very small
C.
assumed by software
D.
any of the above
Answer»
A. very large
198.
Which of the following is not an FEA package?
A.
ANSYS
B.
Nastran
C.
Abaqus
D.
AutoCAD
Answer»
D. AutoCAD
199.
Which of the following module of FEA is used to determine natural frequency?
