In Finite Element Analysis, which option is correct for computation of load due to specified boundary stress?

Can be computed using a local coordinate system but not one-dimensional interpolation functions

Can be computed using a local coordinate system and one-dimensional interpolation functions

Can be computed using a local coordinate system but not one-dimensional interpolation functions

Cannot be computed using a local coordinate system but one-dimensional interpolation functions can be used

Neither a local coordinate system nor one-dimensional interpolation functions can be used

Which option is not correct concerning the internal load vector in the finite element model of plane elasticity problems?

Its computation doesn t involve evaluation of line integrals for any type of element

It is computed at all the nodes interior of the element

It is computed only when the element falls on the boundary of the domain on which tractions are known

Its computation doesn t involve evaluation of line integrals for any type of element

It is evaluated in global coordinates but not in element coordinates

( frac{ partial S}{ partial y}= frac{K}{A_e^2} )

( frac{ partial S}{ partial x}= frac{K}{A_e} )

( frac{ partial S}{ partial y}= frac{K}{A_e^2} )

( frac{ partial S}{ partial x} )=KAe

( frac{ partial S}{ partial y} )=KAe2

1.	In the Finite Element Method, which element is known for the slowest convergence?
A.	Linear triangular element
B.	Quadratic triangular element
C.	Linear rectangular elements
D.	Quadratic rectangular elements
Answer» B. Quadratic triangular element

2.	In Finite Element Analysis, which option is correct for computation of load due to specified boundary stress?
A.	Can be computed using a local coordinate system and one-dimensional interpolation functions
B.	Can be computed using a local coordinate system but not one-dimensional interpolation functions
C.	Cannot be computed using a local coordinate system but one-dimensional interpolation functions can be used
D.	Neither a local coordinate system nor one-dimensional interpolation functions can be used
Answer» B. Can be computed using a local coordinate system but not one-dimensional interpolation functions

3.	In vibration and transient analysis of beams, if the linear acceleration scheme predicts the solution,then it is unstable for the first several time steps, but it eventually becomes stable.
A.	True
B.	False
Answer» C.

4.	Which option is not correct concerning the internal load vector in the finite element model of plane elasticity problems?
A.	It is computed at all the nodes interior of the element
B.	It is computed only when the element falls on the boundary of the domain on which tractions are known
C.	Its computation doesn t involve evaluation of line integrals for any type of element
D.	It is evaluated in global coordinates but not in element coordinates
Answer» C. Its computation doesn t involve evaluation of line integrals for any type of element

5.	In the Finite Element Method, the vector of internal forces is computed only when the element falls on the boundary of the domain on which tractions are absent.
A.	True
B.	False
Answer» C.

6.	In Finite Element Analysis, what is the correct load vector for the linear quadrilateral element with area A_e, thickness h_e and uniform body force vector f?
A.	( frac{A_e h_e}{4} )f
B.	( frac{A_e h_e}{3} )f
C.	( frac{h_e}{3A_e} )f
D.	( frac{h_e}{4A_e} )f
Answer» B. ( frac{A_e h_e}{3} )f

7.	In Finite Element Analysis, what is the correct load vector for a linear triangular element with area A_e, thickness h_e and uniform body force vector f?
A.	( frac{A_e h_e}{4} )f
B.	( frac{A_e h_e}{3} )f
C.	( frac{h_e}{3A_e} )f
D.	( frac{h_e}{4A_e} )f
Answer» C. ( frac{h_e}{3A_e} )f

8.	In the Finite Element Method, which expression is correct for a linear triangular element if S is the shape function, A_e is its area, and K is a constant?
A.	( frac{ partial S}{ partial x}= frac{K}{A_e} )
B.	( frac{ partial S}{ partial y}= frac{K}{A_e^2} )
C.	( frac{ partial S}{ partial x} )=KA<sub>e</sub>
D.	( frac{ partial S}{ partial y} )=KA<sub>e</sub><sup>2</sup>
Answer» B. ( frac{ partial S}{ partial y}= frac{K}{A_e^2} )