When the crane is operated in a dusty environment, the air filter, intake, and housing should be cleaned _____.

a. at least daily
b. monthly
c. semi-annually
d. annually


a. at least daily

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Which of the stairways is classified as a narrow-U stairway?



a. A
b. B
c. C
d. D

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Mammary alveolar cells are ____________________ cells producing a secretion

Fill in the blank(s) with correct word

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In spite of globalization, effective U.S. policy can be made without consideration of the consequences for other countries

Indicate whether the statement is true or false

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Supporting 10,000 foot-pounds of force is the same as supporting 10,000 pounds of weight.

Answer the following statement true (T) or false (F)

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