Deck 11: Designing Structural Systems

Question 1

_____ loads include the weight of all occupants in the building as well as things that can be moved,such as furniture

A) Dead
B) Dynamic
C) Live
D) Static

Answer 1

C

Question 2

____ forces try to pull the element apart such as the force on the rope in a tug-of-war.

A) Tension
B) Torsion
C) Shear
D) Bending

Answer 2

A

Question 3

Polygons are figures with more than ____ angles.

A) two
B) three
C) four
D) five

Answer 3

C

Question 4

When a calculation is to include the weight of the material making up the structure,as well as loads that may be distributed over the entire surface,a(n)____ load (UDL)measure is used.

A) unevenly distributed
B) unevenly dispersed
C) uniform dispersed
D) uniform distributed

Question 5

A(n)____________________ factor determines how much a product,or an element within a product,is overbuilt.

Question 6

Safety factors (S.F. )should be less than 1.

Question 7

Bow's notation is a method of identifying forces within a structure.

Question 8

A structural subcomponent using the triangle shape is rarely used in structural design because of its inherent instability.

Question 9

A ____ is a structural member which projects beyond its support and is supported at only one end.

A) truss
B) suspension cable
C) cantilever
D) beam

Question 10

Beams are primarily designed to resist ____ forces.

A) torsion
B) tension
C) bending
D) shear

Question 11

____________________ are lines that describe both the direction and magnitude of a force being applied to the system.

Question 12

Modern ____________________ bridge designs are capable of spanning the greatest distance of all bridge designs.

Question 13

Dynamic loads are characterized by forces at rest.

Question 14

____________________ (also known as torque)is most associated with mechanical systems,such as motors,engines,and the related moving parts.

Question 15

____ loads include the weight of the materials in the structure itself and all major architectural or product features.

A) Dead
B) Live
C) Dynamic
D) Static

Question 16

The stage after the elastic stage is known as the ____ stage.

A) dynamic
B) failure
C) breaking
D) plastic

Question 17

____ is the conscious decision on the part of the designer to produce a product that will become outdated in a defined time frame.

A) Durability
B) Planned obsolescence
C) Post-structuralism
D) Automatic safety factor

Question 18

____ form(s)the basis for classical Newtonian mechanics.

A) Newton's laws of motion
B) Special relativity
C) Newton's law of gravitation
D) Hooke's Law

Question 19

A(n)____________________ is a body that supports a load and resists external forces without changing its shape,except for that due to the elasticity of the material(s)used in construction.

Question 20

In applications such as an automobile drive shaft or simply spinning on a single rope swing seat,the structural element is under torsion.

Question 21

If a 10-inch block changes in length by 0.5 inches,what is the strain?

Question 22

If the breaking point of a jack is 6,000 pounds,and the maximum expected load is 4,000 pounds,what is the safety factor?

Question 23

If a 10 pound force acts over a square with side length 0.5 inches,what is the stress?

Question 24

What is a vector?

Question 25

What are Newton's three laws of motion?