A relative humidity over __________ greatly increases the chances of allowing mold to grow in the occupied space.
A. 40%
B. 50%
C. 60%
D. 70%
Answer: C
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_____________________ is the condition where crystals of lead sulfate accumulate on the plates of a lead-acid battery reducing battery performance and making the battery difficult to charge.
Fill in the blank(s) with the appropriate word(s).
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The three hazards of electricity are _____.
a. shock, arc flash, and arc blast b. electrocution, involuntary movement, and falls c. voltage, current, and frequency d. burns, fibrillation, and suffocation
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The most important forage crop in the United States is alfalfa
Indicate whether the statement is true or false.
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Plywood shall conform to U.S. Product Standards ____ and shall be branded or stamped with type and grade.
A. PS-64 B. PS-65 C. PS-66 D. PS-67
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