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A tie rod primarily carries tension
true
a column primarily carries compression
True
a cable primarily carries compression
false
an arch primarly carries compression
true
dead loads are premanent loads
true
live loads can change in magnitude and locations
true
earthquake loads are primarily lateral
true
a pin support prevents rotation
false
a roller allows rotation and movement
true
a fixed support prevents rotation
true
a fixed support in 2d has three reaction components
true
preventing translation creates a force reaction
true
preventing rotation creates a moment reaction
true
a smooth surface can provide multiple reaction forces
false
partial constraints means there are too many reactions
false
imprper constraints can occur when reactions are conccurrent
true
parallel reaction lines can cuase instability
true