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).
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).
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
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