# Finite Element Methods Mid - I, September - 2014

###### 1.The determinant of an element stiffness matrix is always
• One
• zero
• depends on size of [K]
• Two
###### 2.Example for plane stress problem is
• Strip footing resting on soil mass
• a thin plate loaded in a plane
• a long cylinder
• a gravity dam
• Pressure
• Traction
• Stiffness
• None
###### 4.Discrete analysis covers
• All 2-D trusses & frames
• all 3-D trusses & frames
• All 2-D and 3-D trusses & frames
• no trusses; only frames
###### 5.Displacement method of FEM for structural analysis gives
• Stiffness matrix
• flexibility matrix
• Conductance matrix
• mixed matrix
###### 6.Transformation matrix relates structural coordinate system in element coordinate system with
• Displacements
• stresses
• Stiffness coefficients
• material properties
###### 7.A singular stiffness matrix means
• Unstable structure
• one or more DOF are unrestrained
• Wrong connectivity of elements
• wrong solution expected
###### 8.Determinant of assembled stiffness matrix before applying boundary conditions is
• < 0
• 0
• > 0
• depends on the problem
###### 9.A 1-0 structural element is a
• Truss element
• beam element
• pipe element
• all of them
###### 10.Meshing for 1-D elements is
• Essential
• optional
• Reduces input data
• depends on other data