Average Amplitude of Waves
from 2009 to 2011
A structural engineer is using this table to design a wall
to protect a city near the ocean.
How high should the engineer build the wall?
Average Amplitude
(meters)
50 meters
100 meters
150 meters
© 200 meters
2009
2010
Year

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank