Finite Element Methods Mid - II, November - 2014

1.Long under ground box culvert and hydraulic cylinder rod end are examples for
  • plane strain problem
  • plane stress problem
  • constant problem
  • complex problem
Answer: A
2.Stiffness matix[K} for constant strain triangular element can be written in the form
  • tA[B][D][B]
  • t[B]T[D][B]
  • tA[B]T[D][B]
  • tA[B]T[D]T[B]
Answer: C
3.Displacement function which matches function value at the specified nodes is classified as
  • Langrange interpolation function
  • Serenalipity function
  • Hermite interpolation function
  • Pascal function
Answer: A
4.An element with no internal nodes is classified as
  • Lagrange element
  • serendipity element
  • Hermite element
  • Laplace element
Answer: B
5.Number of stress components per node calculated for a plane stress quadrilateral element is
  • 2
  • 3
  • 4
  • 5
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.Shape functions for a triangular plane stress element are also called
  • r-s coordinates
  • area coordinates
  • volume coordinates
  • x-y coordinates
Answer: B
8.Use of non-dimensional coordinates helps in
  • numerical integration
  • displacement calculation
  • stress calculation
  • strain calculation
Answer: A
9.Gaussian points are used for
  • numerical integration
  • displacement calculation
  • stress calculation
  • strain calculation
Answer: A
10.In statically equivalent loads, free end moment of a cantilever of length ‘L’ with uniformly distributed load of value ‘P’ is
  • pl2/4
  • pl2/8
  • pl2/12
  • pl2/16
Answer: B
11.State of stress in which the normal stress and shear stresses directed perpendicular to the plane are assumed to be zero is called ___________________
Answer: Plane stress
12.A triangular element with cubic displacement function requires _______________ nodes to represent the complete and symmetric polynomial
Answer: 10
13.Displacement function which matches function value as well as its derivatives(slopes)at the specified nodes is classified as_________________
Answer: Hermite interpolation function
14.A 3-d dam is usually modeled with _________________ elements.
Answer: 2-D plane strain
15.An element with in-plane loads having 3-nodes along each side is a _________________
Answer: Linear strain element
16.When fewer nodes are used to define the geometry than are used to define the displacement, the element is called ___________________
Answer: Subparametric
17.Curved boundary is better modeled by using __________________ elements.
Answer: Isoparametric
18.Number of shape functions for a quadrilateral plane stress element are __________________
Answer: 4
19.Accuracy of stiffness matrix with more number of gaussian points is ________________
Answer: More
20.In statically equivalent loads, end moment of a simply supported beam of length ‘L’ with a concentrated load ‘P’ at the mid point is ____________________
Answer: pl2/4