To prevent destruction the event of a short circuit, protective devices (fuses or circuit breakers) must have an interrupting capacity conforming to which of the following?

A) 1.5 × the calculated short circuit current.
B) 30 times the rated ampacity of the device.
C) Greater than the calculated short circuit current.


C) Greater than the calculated short circuit current.

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________ is the general disease term used to describe seedling infection by Pythium or Rhizoctonia.

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

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What industry typically has the strongest intellectual property positions?

A. Technology B. Energy C. Pharmaceutical D. Agriculture

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The supply circuit's calculated load for lighting units that have ballasts or transformers is based on the ____, not on the lamps' total wattage.

A. calculated continuous load B. total ampere ratings of such units C. the ampere rating of the ballast D. the ampere rating on the nameplate

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The building envelope, also referred to as the ____ envelope, is the dividing line between conditioned and unconditioned space in a house.

A. barrier B. thermal C. dividing D. sealing

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