For outdoor electric de-icing installations, branch circuits and overcurrent devices supplying the equipment shall be sized at not less than what percentage of the total heater load?
a. 80%
b. 100%
c. 125%
d. 150%
c. 125%
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A tremmie is used during the drilling of a pier to
A) prevent the caving in of the soil. B) seal the pier hole against percolation of water. C) bring up the groundwater that collects at the bottom of the pier. D) bring the cut soil out of the hole. E) none of the above.
A(n) ____________________ circuit is a combination circuit made up of series and parallel circuits and is used only sparingly in the industry.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not considered one of the five major factors influencing soil formation?
A) living organisms B) valence state C) climate D) topography E) native parent materials
Where mating surfaces meet in assembly drawings, no change is indicated in the section lines
Indicate whether the statement is true or false