When does the blower operate on an electric furnace?

A) The blower operates independently of the heating elements
B) The blower operates when the first heating element is energized
C) The blower operates whenever any of the heating elements are energized
D) The blower operates whenever the last heating element is energized


C

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Automotive repair and maintenance make up ________ percent of the total number of auto techs in the United States.

A) 3 B) 44 C) 1 D) 31 E) 21

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Para una longitud y carga dada, la caĆ­da de voltaje de un circuito derivado NO debe superar:

a. 3%. b. 4%. c. 5%. d. 6%.

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The key to controlling losses from internal parasites is _____

a. vaccination c. good management b. diet d. breed selection

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The ____ carries the smoke and hot gas from the throat to above the house.

A. pipe B. chimney C. hearth D. wythe

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