Technology: Engineering & Design

Chapter 20: Large-Scale Construction

Self-Check Quizzes

1.
Which force is illustrated by the wringing of a towel?
A)shear
B)compression
C)tension
D)torsion
2.
Which item is not part of a bridge?
A)spillway
B)span
C)abutment
D)pier
3.
Which phrase defines dead load?
A)weight of component materials within the structure
B)weight of all objects moving in or on the structure
C)weight of environmental factors, such as snow pack
D)weight of all structural materials plus weight of things moving in or on the structure
4.
In a canal, a lock
A)powers the moving vessels.
B)provides electronic control of the canal system.
C)isolates a section in order to raise or lower the water level.
D)functions the same as an "oasis" on an interstate highway.
5.
Which force is illustrated by squeezing a cut lemon until juice oozes out?
A)compression
B)torsion
C)tension
D)shear
6.
The Bernoulli effect tends to destabilize some bridges. It causes
A)centrifugal forces.
B)pilings to vibrate deep in the ground.
C)differences in air pressure above and below spans.
D)centripetal forces.
7.
Construction in space is
A)less expensive than on earth.
B)more difficult and dangerous than on earth.
C)easier than on earth because of microgravity.
D)equally expensive as on earth.
8.
A cantilever bridge is rather like
A)an inclined plane (or ramp).
B)two facing diving boards whose ends are connected.
C)a suspension bridge.
D)a dam.
9.
Which type of road surface is classified as flexible?
A)asphalt
B)steel-reinforced concrete
C)steel grating
D)Portland cement concrete (PCC)
10.
Which sentence describes how section joints (seams) in a pipeline are processed?
A)Seams are stapled together.
B)Seams are welded and then visually inspected.
C)Seams are welded and then inspected with X-ray equipment.
D)Seams are encased in rubber or plastic sleeves.
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