Marty is developing a new way to heat an airplane's windshield to prevent it from accumulating ice when in flight. a thin layer of clear, conductive material is injected between two layers of thick windshield plastic. a very small electric current is run through the inner material to keep the plastic layers warm. how might using a model marty develop his design? a. marty could use a model to discover a new type of plastic for windshields. b. airplane manufacturers could be sold models to use in their new planes. c. a model could be used to test his design in a lab. d. a model could be used for automobile windshields.

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:

do you have a formula possibly