Describe type n equipment, and list its three subcategories.

What will be an ideal response?


Equipment that is provided with type n protection is permitted to be installed in Zone 2 locations. This type of equipment is designed in a manner such that it is not capable of igniting a surrounding hazardous vapor. Furthermore, type n equipment is broken down into three subcategories —nA, nC, and nR. The subcategories represent different design characteristics of the equipment or enclosures.

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A rectangular solid has ____________________ rectangular faces.

Fill in the blank(s) with the appropriate word(s).

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The minimum permitted ampacity of circuit conductors is required to be ____________________% of the total load of the heaters.

Fill in the blank(s) with the appropriate word(s).

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The style of the presentation of a project proposal should be in sharp contrast to the size and setting of the place where it is being made

Indicate whether the statement is true or false

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According to this textbook, what is the recommended slope on a refrigerator drain?

a. 1/8 “ per foot b. ½” per foot c. 1-1/2” per foot d. 4” per foot

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