Look at the diagram. An illustration of a standing wave with two areas of maximum displacement. The area of maximum displacement is labeled A. The area with no displacement is labeled B. The length of the first area of maximum displacement is labeled C and the whole length is labeled as D. THE ANSWER IS B I THINK GUYS

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:

they should be similar or the same

im guessing the west of station b

pretty sure it's false