__________ are the types of forces bridge components are designed to resist.

__________ are the properties of traditional bridge-building materials.

________ are traditional and modern bridge designs.

Miscalculation of the types and magnitudes of loads will not likely lead to catastrophic failure.

An engineer seldom knows the exact loads that a bridge may have to withstand.

A ___________ is a calculation of how much stronger the bridge is than it needs to be for an intended load.

Which of the following is true about is the dead load?

The _______ load is the weight of the people, trucks, snow that the bridge has to support.

Safety factors for live loads tend to be _________ than those for dead loads.

Which of the following statements are true about thermal loads? Select all that apply.

________________ frequency is the frequency at which a system oscillates (moves back and forth) when no other force is acting upon it.

_______________ loads grow rapidly or suddenly and can cause disastrous failures and high losses of life.

Wind loads, impact loads and earthquake loads are all examples of which type of loads?

A stress is the force that acts on a component divided by its cross-sectional area.

The two general types of stress are:

When a structural element like a cable is subjected to a tensile force (tension), it will undergo a shape change and become ___________.

_______________ is a squeezing force.

When a load is placed on a structural element (such as a beam) that causes it to bend, it is simultaneously subjected to both ___________ and ______________ stresses.

Which type of force is being applied to the image?

Which type of force is being applied in the image?

Which type of stress is being applied to the image?

If a material deforms plastically, does it bounce back to its original shape?

If a material bounces back to its original shape it is said to behave ___________.

A materials _________ stress determines how much stressa material can withstand before it deforms ___________.

All bridge components should behave elastically.

____________ is equally strong when resisting squeezing or pulling stresses.

Wood and steel have relatively similar tensile and compressive strengths.

Stone is much stronger at resisting ___________ forces than it is resisting ___________ forces.

Reinforced concrete has ____________ embedded into it.

Cables are designed to resist ____________ forces only.

___________ are designed to resist compressive forces only.

________ are designed to resist bending stresses.

Beams derive most of their strength from its ________.

Doubling the height of a beam will increase its strength by a factor of ___.

______________ are designed to resist compressive forces along a curve.

____________ are found in both bridges and roofs.

Trusses are designed to be in either pure _____________ or pure ______________.

Which type of bridge is shown in the image?

Which type of bridge is shown in the image?

Which type of bridge is shown in the image?

Which type of bridge is shown in the image?

Which type of bridge is shown in the image?