Fem Objective Questions

FEM BITS 1

A triangular plane stress element has ………degree’s of freedom [A] 3 [B] 4 [C] 5 [D] 6  Number of displacement polynomials used for an element depends on [A] Nature of element [B] type of an element [C] degrees of freedom

[

D

]

[

C

]

In weighted residual technique,the methods adopted are [A] point collocation method [B] least squares squares method [C] galerkin’s method [D] all The higher order elements are also called as [A] complex elements [B] compound element [C] linear element [D] none The eight node quadrilateral element belongs to…………. Family fo elements [A] Serendipity [B] interdipity [C] sardipity [D] none The displacement function for 1-D ,two node linear element in terms of shape function will be [A] u = N1u2 + N2u1 [B] u = N2 u1 + N1u2 [C] u = N1u1+N2u2 [D] u = N1u1+N1u2

[

D ]

[

A ]

[

A ]

[

C

]

7

On gathering stiffness and loads ,the system of equations is given by [A] KQ=F [B] KQ≠F [C] K=QF [D] K≠QF

[

A

]

8

[

B

]

[

A

]

9

A six noded triangular element is known as [A] linear strain triangular element [B] constant strain triangular element [C] varaiable strain triangular element [D] differable strain triangular element The art of subdividing subdividing a structure int a convenient number of smaller components components isCalled [A] discretization [B] numbering of nodes [C] continumm [D] both a &b

10

A three noded triangular element is called as

[

B

]

[

A

]

[

A

]

The geometry and other parameters of an element in terms of only one spatial coordinate then the element is [A] 2 dimensional [B] one dimensional [C] three dimensional [D] none The finite element method is mostly used in the field of [A] structural structural mechanics [B]classical mechanics mechanics [C] applied mechanics [D]engg mecahnics mecahnics

[

D

]

[

D

]

15

FEM cant produce exact results resu lts as those of…………methods [A] analytical [B] logical [C] theoritical [D] all the above

[ D

]

16

Sum of all shape functions is equal to [A] Zero [B] -1

[

C

]

[ A

]

2 3 4 5 6

[A]linear strain triangular element [C] varaiable strain triangular element

11

  {1 1 00 − 0 0− 2 []

13 14

17

[B] constant strain triangular element [D] differable strain triangular element

Identify the stress –  stress – strain strain relationship matrix [A] .

12

  {1 01 00 − 0 0− 2 []

 

[B]

[D] nodes

 

[C]

Stiffness mmatrix for 2D CST element [[D] [[B] A t [B] [[D] [[B] A t [C] [A]

[]

  {1 1 0 − 0 0− 2

[[D] [[B] A t

 

[D]

[]2

[D]

  {1 0 00 − 0 0− 2

[[D] [[B]A t

[C] +1 [D] 2

The higher order elements are also called as [A] complex elements [B] compound element [C] linear element

[D] none

18

At Fixed support The displacements are equal to …………………………… [A] 1 [B] 2 [C] 3 [D] 0

[ D

]

19

FEM also operates the parameters like [A] heat transfer [B] temperature [C] both A&B

[

D

]

[

D

]

20

Range of poisson’ poisson ’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45

[D] none

[C] 0.22-0.25

[D] 0.25-0.50

1 2 3 4 5

6 7 8 9 10 11 12 13 14 15

16 17

18 19 20

The sub domains are called as [A]Particles [B] molecules

[ C ] [C] elements

[D] None

If any element is specified by the polynomial of the order of two or more, the element is known as [A] non linear element [B] higher order element [C] both A&B [D] none The shape function of the beam elements are known as [A] hermite shape functions [B] element shape functions [C] hermite element functions [D] both A&B FEM also operates the parameters like [A] heat transfer [B] temperature [C] both A&B [D] none The total potential energy is the algebraic sum of [A] integral strain energy and work potential [B] integral strain energy and external work done [C]integral stress energy and work potential [D] integral stress energy and external work done In FEM the complex domain defining a continuum is divided into [A] points [B] elements [C] traiangles [D] none The number of nodes for 1 D element are... [A] 1 [B] 2 [C] 3 [D] none

[

Finite element analysis deals with [A] approximate numerical solution [C] partial differential equations The sum of shape functions is always [A] 1 [B] 0

[ A ]

B]

[ B ] [ C ] [ B ]

[ B ] [ B ]

[B] non boundary value problems [D] Laplace equations

[ A ] [C] infinite

Stiffness matrix depends on [A] material [B] geometry

[C] both

The sub domains are called as [A] particles [B] molecules

[C] elements

[D] None

[ C ] [D] none

[ C ] [D] None

If any element is specified by the polynomial of the order of two or more, the element is known as [A] non linear element [B] higher order element [C] both A&B [D] none The shape function of the beam elements are known as [A] hermite shape functions [B] element shape functions [C] hermite element functions [D] both A&B Units for torsion force is [A]  N/mm2 [B]  N/m [C]  Kgf/m [D]  Kgf/mm

[ B ]

If , a constant in two dimensional plane region then the poissons equation is given by [A] k[ [B] [C] [D] Q=0 For two dimensional plane stress problems, normal and shear stress are… [A] zero [B] equal [C] same [D] both a&b

[ B ]

For constant strain triangle element, the shape function is [A] =1 [B] [C] =2 [D]

[ A ]

 =  =  ∇2∅)+ = 0

∇2∅ = 0 ∇2∅)+ = 0

 ++   ++22  33

 ++   ++22  33

Range of poisson’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45 Example of 2-D Element [A] Bar [B] Triangle

[B] 3*3

[ B ]

[ A ]

=0 =4

[ D ] [C] 0.22-0.25

[D] 0.25-0.50

[ B ] [C] Hexahedron

[D] Tetrahedron

For 1-D bar elements if the structure is having 3 nodes then the stiffness matrix formed is having order of……………………….. [A] 2*2

[ B ]

[C] 4*4

[D] 6*6

[

B]

1 2 3 4

5 6

7

8

9 10

11 12

13

14 15 16

17 18 19 20

The force required to produce unit displacement is [A] pressure [B] traction [C] stiffness [D] none The distributed force per unit area on the surface of the body is [A] pressure [B] surface tension [C] traction [D] none Domain is divided into some segments called [A] finite element [B]stiffness matrix [C]node function [D]shape function Unit of body force acting on every elemental volume of the body is [A] force per unit area [B] force per unit length [C] force per unit volume [D]force per unit time . …….are used to find the nodal displacements in all parts of element [A] shape function[B]node function[C]element function [D]coordinate function The ………….is the numerical method for solving complex problems in wide variety of engineering fields [A] FEA [B] computational analysis [C] ansys [D] ANSA The nature of loading at various locations and other surfaces conditions called [A] boundary condition [B] traction [C] friction [D]surfacing

[ A ]

The truss element can resist only [A] axial force [B] surface force [C] point load [D] none

[ A ]

The truss element can deform only in the [A] axial direction [B] vertical direction [C] horizontal directional [D] inclined direction 3-dimensional frames are used to [A] Modelling of cars and bicycle frames [B] aerodynamics [C] bus frames [D] none Displacement can’t be used with ………………………..boundary conditions [A] stress [B] strain [C] temperature [D] none

[ A ]

The ………….is the numerical method for solving complex problems in wide variety of engineering fields [A] FEA [B] computational analysis [C] ansys [D] ANSA The nature of loading at various locations and other surfaces conditions called [A] boundary condition [B] traction [C] friction [D]surfacing

[ A ]

The truss element can resist only [A] axial force [B] surface force

[ A ]

Units for torsion force is [A]  N/mm2 [B]  N/m

[C] point load

[ A ] [ A ] [ A ] [ A ] [ A ] [ A ]

[ D ] [ D ]

[ A ]

[D] none

[ B ] [C]  Kgf/m

[D]  Kgf/mm

The formulae to find the Number of displacements for truss having 3 nodes is…………. [A]Number of nodes*2 [B] Number of nodes*3 [C] Number of nodes*4 [D] Number of nodes*1 At Fixed support The displacements are equal to …………………………… [A] 1 [B] 2 [C] 3 [D] 0

[ A ]

Example of 1-D Element [A] Bar [B] Triangle

[ A ]

Transformation matrix is represented by [A] [K] [B] [B]

[C] Square

[ D ]

[D] Tetrahedron

[ C ] [C] [L]

Hinged support is having ……….. number of reaction forces [A] 1 [B] 2 [C] 3

[D] [D]

[ C ] [D]

1 2 3 4 5 6 7 8 9 10 11

The art of sub dividing a structure into a convenient number of smaller components is known as [A] node [B] elementization [C] discretization [D] numbering The point in the entire structure is defined using coordinates system is known as [A] local coordinate [B]natural coordinate [C]region coordinate [D] global coordinate …….magnitude never exceeds unity [A] local coordinate [B] natural coordinate [C] region coordinate [D] global coordinate The shape function has…value at one nodal poi nt and…value at other nodal point [A] unity, negative [B] positive, negative [C] unity, zero [D] high, low Units for torsion force is [A] N/mm2 [B] N/m [C] Kgf/m [D] Kgf/mm A small unit having definite shape of geometry and node is known as [A] Discrete element [B] finite element [C] assembled element [D] Infinite element Example for one – Dimensional element is ….. [A] Triangular element [B] Brick element [C] Truss element [D] Axisymmetric element The state of stress for a three dimensional body has ———  components. [A] six [B] three [C] two [D] four The determinant of an element stiffness matrix is always [A] one [B] zero [C] depends on size of [K] Finite element analysis deals with [A] Approximate numerical solutions [C] Partial Differential equations How many nodes are in 3-D brick element [A] 3 [B]6

[ C] [D ] [ B ] [ C ] [ B ] [ B ] [ C ] [ A ] [B ]

[D] Two

[ A ] [B] Non boundary value problems [D] All the above

[ D ] [C] 5

[D]8

A Deformable system is in equilibrium, if the first variation in the total P.E of the system is zero‘refers to [A] theorem of stationary P.E [B] theorem of virtual work [C] theorem of virtual displacement [D] bettis theorem In one of the property of shape function, summation of shape function [Σfi] is [A] n [B] 2n [C] 1 [D] 0

[ B ]

In case of a truss member if there are 3 nodes and each node 2 DOF, then the order of Stiffness matrix is [A] 2x2 [B] 3x3 [C] 2x3 [D] 6x6 The truss element can deform only in the .[ a ] [A] axial direction [B] vertical direction [C] horizontal directional [D] inclined direction The size of the stiffness matrix is equal to the degree of freedom of the [A] element [B] node [C] shape function [D] beam

[D ]

17

In FEM the degree of freedom is often called as [A] shape function [B] nodal displacement[C] element matrix[D] coordinates

[ B ]

18

The final global finite element equation for the complete structure can be written in theMatrix form [A] {F}=[k]+{u} [B] {F}=[k]-{u} [C] {F=[k]{u} [D] {F=[k]/{u} The number of shape functions will be equal to the number of [A] nodes of element [B] elements of the structure [C] size of the structure [D] coordinates At Fixed support The displacements are equal to …………………………… [A] 1 [B] 2 [C] 3 [D] 0

[ C ]

12

13 14 15 16

19 20

[C ]

[ A ] [ A]

[ A ] [ D ]

1.LST element has ________nodes.

[ D

]

[ A

]

[ A

]

[ B

]

5. In local co-ordinate system the nodes of the structure are specified by the _______

[ A

]

a)Origin

d)None

a)3

b)4

c)5

d)6

2.________ elements are preferred to four node rectangular elements a) Triangular

b)square

c)orthogonal

d)None

3.First derivatives of the three node elements are called as a)CST

b)LST

c)VST

d)None

4. In CST element ________ is constant a)Stress

b)Strain

c)shape function

b)End points

d)All

c)Any point on the element

6. In local co-ordinate system ________case letters are preferred.

[ B

]

7. The two dimensional elements are called ________elements

[ C

]

a) Para symmetric

d)All

a)Upper

b)Lower

c)both a & b

b) dia symmetric

d)None

c) Axi symmetric

8.To convert Cartesian co-ordinates in to local co-ordinates we use_______ matrix method [ a) Crammer

b)Henry

c)Jacobian

C ]

d)None

9.If the geometry and field displacement variables of the elements are described by the same shape functions, then these elements are called___________ a) Iso Parametric

b)Axi Symmetric

[ A

c)Super parametric

]

d)Sub Parametric

10.If the geometry of the elements are described by a lower order shape functions ,then these elements are called _______ a) Iso Parametric

[ D b)Axi Symmetric

c)Super parametric

]

d)Sub Parametric

11. If the geometry of the elements are described by a Higher order shape functions ,then these elements are called _______ a) Iso Parametric

[ C

b)Axi Symmetric

c)Super parametric

d)Sub Parametric

12.In super parametric elements ,the following condition exists a) i=j

b) ij

b) ij

b) ij b)Henry

c)Jacobian

b) temperature

c) pressure

[ A

]

[ C

]

[ A

]

[ A

]

[ C

]

d) all of the above

2. For 1-D heat conductional element, Temperature function, T= a)N1T1+N2T2

]

d)None

1.The steady state problems are those which are independent of _______ a) time

[ C

d)none

15In FEA, to evaluate the strain displacement matrix we use________ method. a) Crammer

]

d)none

14.In iso parametric elements ,the following condition exists a) i=j

[ B

d)none

13.In sub parametric elements ,the following condition exists a) i=j

]

b) N1T1-N2T2

c) N1T1/N2T2

d) none

3.Locus of points through which a fluid particle of fixed identity passes as it moves in space is a) streamline b) streak line c)path line

d) none

4. locus of points in space that all part icles falling on the line whose velocity vectors are tangent to the line is _________ a) ) streamline b) streak line c)path line

[ A

]

[ B

]

d) none

5._______flow is a frictionless flow characterized by zero viscosity

a) viscous b) inviscid

c) intermittent d) none

6._________ problems depends on vertical deflection

[ A

]

[ B

]

[ A

]

[ D

]

[ D

]

a) structural b) heat transfer c) both a) and b) d) none 7.Each node in structural problem has ____degrees of freedom a) 1

b)2 c) 3

d)4

8.Each node in heat transfer problem has _____ degrees of freedom a) 1

b)2 c) 3

d)4

9.heat transfer problem depends on a) thermal conductivity b) heat coefficient c) ambient temperature d) all 10.Minimum potential energy method is used to determine a) deflection b) slope c) temperature distribution d) all

11. Governing equation for two dimensional heat conduction is

    a) ( + ( + = 0     c) ( + ( + = 0    

[a]     b) ( + ( + = 0     d) ( + ( + = 0    

1.the potential function is given by ɸ = a) N1P1+N2P2 b) N1P1-N2P2

c) N1P1/N2P2

b) f=V/A

c) V=fA

]

[ A

]

[ B

]

d) none

2. the volumetric flow rate is given by a) f=VA

[A

d) none

1.________is the reciprocal of period a) displacement b) frequency c) amplitude d) none

2.__________method is used to calculate nodal displacements at several intervals of time [ A

]

a) direct integration b) indirect integration c) both d)none 3.Explicit method is also called ________method a) New mark’s b) Wilson’s

c) Central difference

c) both

]

[B

]

[ B

]

d) none

4. Wilson’s method is a category of _______ method

a) Explicit b) Implicit

[ C

d)all

5. In Wilson’s method, acceleration varies _________

a) hyperbolic b) linearly c) as sine wave d) none

1

In below choose which is the correct condition for axisymmetric element [A] Symmetric about axis [B] Boundary conditions are symmetric about axis [C] Loading conditions are symmetric about axis [D]All the above

[ D

]

2 3 4 5 6 7 8

9 10 11 12

QST element consist of _________ number of nodes [A] 8 [B] 9 [C] 10 [D] 11 Based below condition which is a serendipity triangular element _______ [A] Nodes at corner [B] nodes at centre [C] nodes on element [D] none Heat transfer takes place between solid to liquid is known as____________ [A] conduction [B] convection [C]Radiation [D] all of the above  Nodal points greater than geometry points is known as__________ [A] Isoparametric [B] Subparametric [C] Superperametric [D] QST Based on which parameter an pol ynomial function can be chosen________________ [A] Nodes [B] Nodal points [C] Nodal displacements [D] Elements Transformation axis is also kno wn as _____________ [A] transformed axis [B] non-dimensional axis [C] natural coordinates [D] All

[

[B

]

A six noded triangular element is known as [A] linear strain triangular element [C] varaiable strain triangular element

[ A

]

[ D

]

[B

]

Stiffness mmatrix for 2D CST element [A] [D] [B] A t [B] [D] [B] A t

[]

[]

[C]

[]

[D] [B] A t

[D]

14

In Fluid Mechanics Problems the Unkonown is ____________________

15

[A] Temperature [B]Potential [C] Displacement LST element contains ______________ nodes [A] 1 [B] 2 [C] 3 [D] 6

17 18 19 20

2 3 4

Iso-Parametric Element is _____Element [A] Regular [B] Ir-regular

]

[

]

B

[ B

]

[

]

C

[D] F=KZ [D] [B] [D][B]At

[C] [B] [D][L] 2πrt

Jacobian matrix, [J]=

Sum of all shape functions is equal to [A] Zero [B] -1

[ A

[D] ∆T

T

13

16

]

[B] constant strain triangular element [D] differable strain triangular element

Heat transfer takes place due t o ________________ [A] conduction [B] convection [C] Radiation FEM equation for Fluid mechanics Element [A]F=KT [B] F=KP [C] F=KU Stifness matrix for Axis symmetriceleement is [A] [B]T[D][B]2πrt [B] [D]T[D][B]At

C

[C] +1 [C] Sub

[

A

]

[

A

]

T

[]2

[D] [B]A t

[ B

]

[ D

]

[ C

]

[ B

]

[ B

]

[

D

]

[ D

]

[ D

]

[

C

]

[ A

]

[

]

[D]Shape functions

[D] 2 [D] Super

Axis-Symmetric element is______________Element [A] 1D [B] 2D [C] 3D

[D] 4D

FEM also operates the parameters like [A] heat transfer [B] temperature

[C] Potential

[D] All of the above

Range of poisson’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45

[C] 0.22-0.25

[D] 0.25-0.50

In below choose which is the correct condition for axisymmetric element [A] Symmetric about axis [B] Boundary conditions are symmetric about axis [C] Loading conditions are symmetric about axis [D]All the above QST element consist of _________ number of nodes [A] 8 [B] 9 [C] 10 [D] 11 Based below condition which is a serendipity triangular element _______ [A] Nodes at corner [B] nodes at centre [C] nodes on element [D] none Heat transfer takes place between solid to liquid is known as____________ [A] conduction [B] convection [C]Radiation [D] all of the above

B

5 6 7 8

9 10 11 12

 Nodal points greater than geometry points is known as__________ [A] Isoparametric [B] Subparametric [C] Superperametric [D] QST Based on which parameter an pol ynomial function can be chosen________________ [A] Nodes [B] Nodal points [C] Nodal displacements [D] Elements Transformation axis is also kno wn as _____________ [A] transformed axis [B] non-dimensional axis [C] natural coordinates [D] All

[ B

]

[

]

[B

]

A six noded triangular element is known as [A] linear strain triangular element [C] varaiable strain triangular element

[ A

]

[ D

]

[B

]

[B] constant strain triangular element [D] differable strain triangular element

Heat transfer takes place due t o ________________ [A] conduction [B] convection [C] Radiation FEM equation for Fluid mechanics Element [A]F=KT [B] F=KP [C] F=KU Stifness matrix for Axis symmetriceleement is [A] [B]T[D][B]2πrt [B] [D]T[D][B]At Stiffness mmatrix for 2D CST element [A] [D] [B] A t [B] [D] [B] A t

[]

[]

[]

[D] [B] A t

[D]

Jacobian matrix, [J]=

14

In Fluid Mechanics Problems the Unkonown is ____________________

15

[A] Temperature [B]Potential [C] Displacement LST element contains ______________ nodes [A] 1 [B] 2 [C] 3 [D] 6

17 18 19 20 1 2 3 4 5 6 7

Sum of all shape functions is equal to [A] Zero [B] -1 Iso-Parametric Element is _____Element [A] Regular [B] Ir-regular

[D] F=KZ [D] [B] [D][B]At

[C] [B] [D][L] 2πrt [C]

[D] ∆T

T

13

16

C

[C] +1 [C] Sub

[

A

]

[

A

]

T

[]2

[D] [B]A t

[ B

]

[ D

]

[ C

]

[ B

]

[ B

]

[

D

]

[ D

]

[D]Shape functions

[D] 2 [D] Super

Axis-Symmetric element is______________Element [A] 1D [B] 2D [C] 3D

[D] 4D

FEM also operates the parameters like [A] heat transfer [B] temperature

[C] Potential

[D] All of the above

Range of poisson’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45

[C] 0.22-0.25

[D] 0.25-0.50

Heat transfer takes place between solid to liquid is known as____________ [A] conduction [B] convection [C]Radiation [D] all of the above QST element consist of _________ number of nodes [A] 8 [B] 9 [C] 10 [D] 11 Based below condition which is a serendipity triangular element _______ [A] Nodes at corner [B] nodes at centre [C] nodes on element [D] none In below choose which is the correct condition for axisymmetric element [A] Symmetric about axis [B] Boundary conditions are symmetric about axis [C] Loading conditions are symmetric about axis [D]All the above  Nodal points greater than geometry points is known as__________ [A] Isoparametric [B] Subparametric [C] Superperametric [D] QST Based on which parameter an pol ynomial function can be chosen________________ [A] Nodes [B] Nodal points [C] Nodal displacements [D] Elements Transformation axis is also kno wn as _____________ [A] transformed axis [B] non-dimensional axis [C] natural coordinates [D] All

[

]

[

]

[

]

[

]

[

]

[

]

[

]

8

9 10 11 12

A six noded triangular element is known as [A] linear strain triangular element [C] varaiable strain triangular element

Heat transfer takes place due t o ________________ [A] conduction [B] convection [C] Radiation FEM equation for Fluid mechanics Element [A]F=KT [B] F=KP [C] F=KU Stifness matrix for Axis symmetriceleement is [A] [B]T[D][B]2πrt [B] [D]T[D][B]At Stiffness mmatrix for 2D CST element [A] [D] [B] A t [B] [D] [B] A t

[]

[]

[C]

[]

[D] [B] A t

[D]

14

In Fluid Mechanics Problems the Unkonown is ____________________

15

[A] Temperature [B]Potential [C] Displacement LST element contains ______________ nodes [A] 1 [B] 2 [C] 3 [D] 6

18 19 20

Sum of all shape functions is equal to [A] Zero [B] -1

[C] +1

Iso-Parametric Element is _____Element [A] Regular [B] Ir-regular

[C] Sub

2 3 4 5 6 7 8 9

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[D] [B]A t

[D]Shape functions

[D] 2 [D] Super [D] 4D

FEM also operates the parameters like [A] heat transfer [B] temperature

[C] Potential

[D] All of the above

Range of poisson’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45

[C] 0.22-0.25

[D] 0.25-0.50

Stiffness mmatrix for 2D CST element [A] [D] [B] A t [B] [D] [B] A t

[C]

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T

Axis-Symmetric element is______________Element [A] 1D [B] 2D [C] 3D

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[D] F=KZ [D] [B] [D][B]At

[C] [B] [D][L] 2πrt

Jacobian matrix, [J]=

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[D] ∆T

T

13

16

[ [B] constant strain triangular element [D] differable strain triangular element

[]

[D] [B] A t

[D]

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[D] [B]A t

Jacobian matrix, [J]= Range of poisson’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45 [C] 0.22-0.25 [D] 0.25-0.50 Heat transfer takes place due t o ________________ [A] conduction [B] convection [C] Radiation [D] ∆T In below choose which is the correct condition for axisymmetric element [A] Symmetric about axis [B] Boundary conditions are symmetric about axis [C] Loading conditions are symmetric about axis [D]All the above QST element consist of _________ number of nodes [A] 8 [B] 9 [C] 10 [D] 11 Iso-Parametric Element is _____Element [A] Regular [B] Ir-regular [C] Sub [D] Super Based below condition which is a serendipity triangular element _______ [A] Nodes at corner [B] nodes at centre [C] nodes on element [D] none Heat transfer takes place between solid to liquid is known as____________ [A] conduction [B] convection [C]Radiation [D] all of the above

10 11 12 13 14 15

 Nodal points greater than geometry points is known as__________ [A] Isoparametric [B] Subparametric [C] Superperametric [D] QST Based on which parameter an pol ynomial function can be chosen________________ [A] Nodes [B] Nodal points [C] Nodal displacements [D] Elements Transformation axis is also kno wn as _____________ [A] transformed axis [B] non-dimensional axis [C] natural coordinates [D] All

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[

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A six noded triangular element is known as [A] linear strain triangular element [C] varaiable strain triangular element FEM equation for Fluid mechanics Element [A]F=KT [B] F=KP

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Stifness matrix for Axis symmetriceleement is [A] [B]T[D][B]2πrt [B] [D]T[D][B]At

[B] constant strain triangular element [D] differable strain triangular element [C] F=KU T

[C] [B] [D][L] 2πrt

16

In Fluid Mechanics Problems the Unkonown is ____________________

17

[A] Temperature [B]Potential [C] Displacement LST element contains ______________ nodes [A] 1 [B] 2 [C] 3 [D] 6

18 19 20 1 2 3 4 5 6 7 8 9

Sum of all shape functions is equal to [A] Zero [B] -1

[D] F=KZ T

[D] [B] [D][B]At

[D]Shape functions

[C] +1

[D] 2

Axis-Symmetric element is______________Element [A] 1D [B] 2D [C] 3D

[D] 4D

FEM also operates the parameters like [A] heat transfer [B] temperature

[C] Potential

[D] All of the above

Stifness matrix for Axis symmetriceleement is [A] [B]T[D][B]2πrt [B] [D]T[D][B]At [C] [B]T[D][L] 2πrt [D] [B]T[D][B]At LST element contains ______________ nodes [A] 1 [B] 2 [C] 3 [D] 6 In Fluid Mechanics Problems the Unkonown is ____________________ [A] Temperature [B]Potential [C] Displacement Sum of all shape functions is equal to [A] Zero [B] -1 [C] +1 Iso-Parametric Element is _____Element [A] Regular [B] Ir-regular [C] Sub [D] Super Axis-Symmetric element is______________Element [A] 1D [B] 2D [C] 3D Jacobian matrix, [J]= Stiffness mmatrix for 2D CST element [A] [D] [B] A t [B] [D] [B] A t

[C]

FEM equation for Fluid mechanics Element [A]F=KT [B] F=KP

[C] F=KU

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[D] [B] A t

[D]Shape functions [D] 2

[D] 4D

[D]

[]2

[D] [B]A t

[D] F=KZ

10 11 12 13

Heat transfer takes place due t o ________________ [A] conduction [B] convection [C] Radiation [D] ∆T In below choose which is the correct condition for axisymmetric element [A] Symmetric about axis [B] Boundary conditions are symmetric about axis [C] Loading conditions are symmetric about axis [D]All the above QST element consist of _________ number of nodes [A] 8 [B] 9 [C] 10 [D] 11 Based below condition which is a serendipity triangular element _______ [A] Nodes at corner [B] nodes at centre [C] nodes on element [D] none

14 15 16 17 18 19 20

Heat transfer takes place between solid to liquid is known as____________ [A] conduction [B] convection [C]Radiation [D] all of the above  Nodal points greater than geometry points is known as__________ [A] Isoparametric [B] Subparametric [C] Superperametric [D] QST Based on which parameter an pol ynomial function can be chosen________________ [A] Nodes [B] Nodal points [C] Nodal displacements [D] Elements Transformation axis is also kno wn as _____________ [A] transformed axis [B] non-dimensional axis [C] natural coordinates [D] All

[

]

[

]

[

]

[

]

A six noded triangular element is known as [A] linear strain triangular element [C] varaiable strain triangular element FEM also operates the parameters like [A] heat transfer [B] temperature

[

]

[

]

[C] Potential

[D] All of the above

Range of poisson’s ratio for metals is [A] 0.25-0.33 [B] 0.22-0.45

[

]

[C] 0.22-0.25

[D] 0.25-0.50

[B] constant strain triangular element [D] differable strain triangular element