On a small gas engine, how often should the oil be changed?

a. after every 5 hours of use c. after every 100 hours of use
b. after every 25 hours of use d. after every 200 hours of use


ANS: B

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The extruded bricks generally include holes. What are these holes called?

What will be an ideal response?What will be an ideal response?

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Before allowing the compressors of a water-cooled chiller to start up, what two things must be done?

What will be an ideal response?

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The officials who evaluate livestock classes are responsible for documenting each class’s placing in the class’s _____ placing.

a. official c. culled b. honorary d. production

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What best describes "constraint-based modeling"?

a. Mechanical supports for the physical model b) Relationships that defined parts of a 2D model that are maintained by the software when you make changes to the drawing c) A system that can be used only on 2D drawings d) None of the above

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