FE Exam - Civil Engineering UPDATED
ACTUAL Exam Questions and CORRECT
Answers
For Beam Deflection you can use the chart with all the different equations that apply to your
Simply Supported Beam - CORRECT ANSWER - w - distributed load
P - point load
Theta measures slope
V - deflection and displacement at a point
You need E, I, and L
Maximum Shear Stress is the radius of your Mohr's Circle - CORRECT ANSWER - Tmax
= R = sqrt(Txy^2 + ((x-y)/2)^2)
TRUE Stress is the load divided by the ACTUAL Cross-Sectional Area
EGINEERING Stress is load divided by the Initial Area - CORRECT ANSWER -
A Thin-Walled Cylinder counts as what? - CORRECT ANSWER - The thickness of the
cylinder wall is less than one tenth or less of the INSIDE radius
There are separate equations that accompany this classification for pressure
Hooke's Law - CORRECT ANSWER - The law stating that the stress of a solid is directly
proportional to the strain applied to it.
The shear strain in torsional motion varies from 0-100% in direct proportion to the Radius -
CORRECT ANSWER - Greatest strain at the outside of the shaft. Essentially Zero at the
Center
, Torsional Stiffness - CORRECT ANSWER - Twisting moment per radian of twist
Torsion has different equations for thick and thin-walled shafts - CORRECT ANSWER -
Bending Beams Bending Moments and Sign Conventions - CORRECT ANSWER -
Positive BENDING MOMENT if it's concave upward
Positive SHEARING FORCE if the right end shears downward with respect to the left end
Transverse shear stress - CORRECT ANSWER - Transverse loads which generate both
bending moments M(x) and shear forces V(x) along the beam
What makes it Transverse?
There is a table with some essential values and properties of Typical Materials - CORRECT
ANSWER - The only time that these material parameters, given in a few tables, will
actually matter is when the applied load needs to be related to the resulting deformation
On the FE, Torque and Torsional problems are generally left for only circular cross-sections -
CORRECT ANSWER - Non-circular cross-sections tend to warp and the physics behind
such are a little too difficult
With Torsional Strain and the angle of twist, you only need to use the integration in two cases: -
CORRECT ANSWER - 1.) The torsion force varies along the the shaft
2.) Value for J varies along the shaft
POLAR Moment of Inertia, J, can be found in the Moment of Inertia Tables in the Statics Section
of the Handbook - CORRECT ANSWER -
"Stresses in Beams" is not the same as "Uniaxial Stress" - CORRECT ANSWER -
ACTUAL Exam Questions and CORRECT
Answers
For Beam Deflection you can use the chart with all the different equations that apply to your
Simply Supported Beam - CORRECT ANSWER - w - distributed load
P - point load
Theta measures slope
V - deflection and displacement at a point
You need E, I, and L
Maximum Shear Stress is the radius of your Mohr's Circle - CORRECT ANSWER - Tmax
= R = sqrt(Txy^2 + ((x-y)/2)^2)
TRUE Stress is the load divided by the ACTUAL Cross-Sectional Area
EGINEERING Stress is load divided by the Initial Area - CORRECT ANSWER -
A Thin-Walled Cylinder counts as what? - CORRECT ANSWER - The thickness of the
cylinder wall is less than one tenth or less of the INSIDE radius
There are separate equations that accompany this classification for pressure
Hooke's Law - CORRECT ANSWER - The law stating that the stress of a solid is directly
proportional to the strain applied to it.
The shear strain in torsional motion varies from 0-100% in direct proportion to the Radius -
CORRECT ANSWER - Greatest strain at the outside of the shaft. Essentially Zero at the
Center
, Torsional Stiffness - CORRECT ANSWER - Twisting moment per radian of twist
Torsion has different equations for thick and thin-walled shafts - CORRECT ANSWER -
Bending Beams Bending Moments and Sign Conventions - CORRECT ANSWER -
Positive BENDING MOMENT if it's concave upward
Positive SHEARING FORCE if the right end shears downward with respect to the left end
Transverse shear stress - CORRECT ANSWER - Transverse loads which generate both
bending moments M(x) and shear forces V(x) along the beam
What makes it Transverse?
There is a table with some essential values and properties of Typical Materials - CORRECT
ANSWER - The only time that these material parameters, given in a few tables, will
actually matter is when the applied load needs to be related to the resulting deformation
On the FE, Torque and Torsional problems are generally left for only circular cross-sections -
CORRECT ANSWER - Non-circular cross-sections tend to warp and the physics behind
such are a little too difficult
With Torsional Strain and the angle of twist, you only need to use the integration in two cases: -
CORRECT ANSWER - 1.) The torsion force varies along the the shaft
2.) Value for J varies along the shaft
POLAR Moment of Inertia, J, can be found in the Moment of Inertia Tables in the Statics Section
of the Handbook - CORRECT ANSWER -
"Stresses in Beams" is not the same as "Uniaxial Stress" - CORRECT ANSWER -
