Unloading occurs in what type of system?

A. hydraulic
B. mechanical
C. pneumatic
D. ventilation


Answer: C

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Which class of fire would involve grease and paint?

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

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Using the Internet, examine the eff ect on our world food supply of using a large percentage of the U.S. corn crop for the production of ethanol.

What will be an ideal response?

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Most people spend over ____% of their lives indoors.

A. 60 B. 70 C. 80 D. 90

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The strength of the magnetic field of a permanent magnet can be changed easily

Indicate whether the statement is true or false

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