When steel is rolled while it is cold, it _____

a. gets softer
b. is annealed
c. gains tensile strength
d. gets thicker


c

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Avoid exposing a lead-acid battery to _____

a. temperatures below 50°F (10°C)
b. sparks or arcs of any type
c. more than two hours of use each day
d. nitrogen

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If one branch fails as an open in a parallel circuit

A) circuit current remains unchanged B) circuit current increases C) circuit current decreases D) circuit current drops to zero

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When the outdoor temperature falls below the balance point, an air-to-air heat pump _____

A) must be shut down B) can no longer extract heat from the outside air C) requires supplemental heat D) can produce more heat than the structure requires

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If both inductive and capacitive components are in an AC circuit, at one particular frequency their reactances will be equal but opposite. This condition is referred to as ____________________.

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

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