Chain hoists are designed for _____
a. angled lifts
b. horizontal pulls
c. angled and vertical lifts
d. vertical lifts
d
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Which of the following occurs when the load applied causes the fibers on the tension side of the rung to stretch and permanently deform?
a. Top-edge failure b. Longitudinal failure c. Side-rail failure d. Transverse failure
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The biotic environment is the soil and area where plant roots
Indicate whether the statement is true or false
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Of our total of nearly 2.3 billion acres, only ____ billion is suitable for farming
A) 1.3 B) .3 C) .5 D) 2
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What is the common operating voltage range on the cells of electronic air cleaners?
A) 480 to 600 volts DC B) 6,000 to 10,000 volts DC C) 120 to 240 volts AC D) 25,000 to 50,000 volts DC
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