Exam Questions and CORRECT Answers
What is the difference between external forces and internal forces? - CORRECT
ANSWER - -External forces are loads that act on a structure.
-Internal forces are stresses that occur within the structural members.
What are the two categories of external forces? - CORRECT ANSWER - Dead loads
Applied loads
Identify four types of applied loads? - CORRECT ANSWER - Live loads
Snow loads
Wind loads
Accidental loads
Loads that are transitory is an example of which type of load? - CORRECT ANSWER -
Live loads
What type of forces must be present in order for a structure to remain static? - CORRECT
ANSWER - Reactionary Forces
What will happen to a structure if all of the forces are NOT in balance? - CORRECT
ANSWER - The structure will move
What is the condition of balanced forces called? - CORRECT ANSWER - Static
Equilibrium
A force that tends to squeeze a structural member is called - CORRECT ANSWER -
Compressive Stress
, A force that tends to stretch a structural member is called - CORRECT ANSWER - Tensile
Stress
A force that tends to make part of the material slide past the part next to it is called - CORRECT
ANSWER - Shear Stress
A force that tends to twist the structural material is called - CORRECT ANSWER -
Torsion Stress
A force that tends to bend a structural member is called - CORRECT ANSWER - Bending
Moment
The change in shape that occurs when a structural member is under stress is called - CORRECT
ANSWER - Deformation
The distance a point on the structural member moves when under stress is called - CORRECT
ANSWER - Deflection
When a structural member is able to return to its original shape when the loads are removed,
the material is ... - CORRECT ANSWER - Elastic
When a structural member is under too much stress, it will become weak and unable to return to
its original shape when the loads are removed.
This material is referred to as being... - CORRECT ANSWER - Plastic
The amount of load that will cause a material to go from being elastic to plastic is referred to as
the ... - CORRECT ANSWER - Yield Point
Foundation - CORRECT ANSWER - the part of the structural system that transmits the
dead and live loads on a structure to the ground.