Finite Element Techniques Mid  II, November  2014
1.Accuracy of solution in a 2‐D component depends on

Included angle of elements

Size of the component

No. of d.o.f /node

Type of load

Answer: A
2.Stress‐strain matrix for axisymmetric element is of order

3x3

4x4

6x6

9x9

Answer: B
3.Number of stress components per node calculated for a triangular axisymmetric element is

2

3

4

5

Answer: C
4.A 3‐D dam is usually modeled with

2‐D plane stress elements

2‐D plane strain elements

3‐D solid elements

3‐D shell elements

Answer: B
5.An element with in‐plane loads having 3‐nodes along each side is a

Constant strain element

Linear strain element

Quadratic strain element

Constant displacement element

Answer: B
6.Derivatives of displacement function with respect to element coordinate system and non‐ dimensional coordinate system is given by

Lagrangian

Poisson

Gaussian

Jacobian

Answer: D
7.A symmetric structure can be analysed by modeling one symmetric part

Depending on applied loads

Depending on boundary conditions

Always yes

Depending on applied loads & boundary conditions

Answer: D
8.Gaussian points are used for

Numerical integration

Displacement calculation

Stress calculation

Strain calculation

Answer: A
9.Principal modes of vibration of a multi‐degrees of freedom system are

Parallel

Orthogonal

Inter multiples

Fractional multiples

Answer: B
10.With lumped mass matrix, the differential equation of vibration refers to

Elastic coupling

Inertia coupling

Mode superposition

Both (a) and (b)

Answer: A
11.A concrete pedestal is represented by ___________ type elements.
Answer: 3D solid
12.An axisymmetric element has ______number of degrees of freedom, compared to a symmetric elements.
Answer: Less
13.Number of shape functions for a 8‐noded quadrilateral plane stress element are _________.
Answer: 8
14.Shape functions for a triangular plane stress element are also called as ________________.
Answer: Area coordinates
15.Conductance matrix is the equivalent of stiffness matrix in __________ analysis.
Answer: Thermal
16.Number of degrees of freedom for a 4‐noded quadrilateral thermal element is __________.
Answer: 4
17.A frequency of value ____________indicates rigid body motion along one degree of freedom.
Answer: Zero
18.Normalising eigenvector with respect to mass matrix is useful in _____________________.
Answer: Mode superposition
19.A 4‐noded cantilever gives ____________ number of frequencies.
Answer: 6
20.A 3‐noded simply supported beam gives _____________ number of frequencies.
Answer: 4