WorksheetsSF.2.c Structural failure
Total questions: 16
Worksheet time: 7mins
What kind of failure happened to these railway tracks, and why?
Buckling, due to thermal contraction
Buckling, due to thermal expansion
Compression failure, due to thermal contraction
Shear failure, due to thermal expansion
This structure is an architectural example of a...
Girder
Simple beam
Cross beam
Cantilever
This structure is an example of a...
Girder
Simple beam
Cross beam
Cantilever
A 2x4 piece of wood is an example of a...
Girder
Simple beam
Cross beam
Cantilever
In physics, "moment" refers to...
A moment in time
30 seconds
A force
A turning, or rotating action
A door with a doorknob in the centre will require more force to open the same way as a door with "normal" doorknob because...
The distance between the force and supporting hinge is longer, creating a smaller moment
The distance between the force and supporting hinge is shorter, creating a larger moment
The distance between the force and supporting hinge is longer, creating a smaller moment
The distance between the force and supporting hinge is shorter, creating a smaller moment
Tire wrenches are tools that tighten/loosen lug nuts on a wheel. Extending the wrench with a longer handle makes it easier to loosen a nut because...
The distance between the force and lug nut is longer, creating a smaller moment
The distance between the force and lug nut is shorter, creating a larger moment
The distance between the force and lug nut is longer, creating a larger moment
The distance between the force and lug nut is shorter, creating a smaller moment
A structure begins to tip when the __________ doesn't align with the _________, creating a tipping moment.
Centre of gravity, Function
Support, Finger
Centre of gravity, Support
Function, Foundation
During high winds or earthquake, a tuned-mass damper is used to align a tower's _________ above the __________, to prevent a tipping moment.
Foundation, Centre of Gravity
Centre of Gravity, Foundation
Height, Ground
Ground, Height
High wind causes a moment dependent on ________ while gravity causes a moment dependent on _________
Length D, Length H
Length H, Length D
Length D, also Length D
Length H, also Length H
Select the failure modes that can occur in structures...(select all that apply)
Buckling failure
Sharing failure
Separation of components
Deformation failure
Shearing failure
The following is an example of...
Shear failure
Buckling failure
Separation of components
Deformation
These supports are examples of...
Flying fortresses, used to prevent shear failure.
Flying buttresses, used to prevent deformation.
Flying albatrosses, used to prevent buckling failure.
Flying buttresses, used to prevent buckling failure.
The failure mode of these structures was most likely...
Buckling failure
Shear failure
Separation of components
Deformation
The failure mode of drill bits is most likely...
Buckling failure
Shear failure
Separation of components
Torsion failure
In vehicles, crumple zones are areas of...
intentional compression failure to reduce the kinetic energy going to the passengers.
unintentional compression failure to reduce the kinetic energy going to the passengers.
intentional compression failure to increase the kinetic energy going to the passengers.
unintentional compression failure to reduce the kinetic energy going to the passengers.
