Which of the following definitions best describes sleeve (fluid film) bearings?

a. They are used in moderate-pressure applications in small to mid-size operations (less than 1,000 rpm).
b. They are used in smaller machinery at low speeds.
c. They are used in larger machinery at low speeds.
d. They are used in larger machinery at high speeds.


a. Incorrect. Sleeve (fluid film or journal) bearings are used for large equipment and high speeds.
b. Incorrect. Sleeve (fluid film or journal) bearings are used for large equipment and high speeds.
c. Incorrect. Sleeve (fluid film or journal) bearings are used for large equipment and high speeds.
d. Correct. Sleeve (fluid film or journal) bearings are used for large equipment and high speeds.

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For a pull box housing shielded conductors carrying over 1,000V and used in an angled pull, the distance between a conductor entry and exit m

a. 24 times greater than the OD of the conductor b. 30 times greater than the OD of the conductor c. 36 times greater than the OD of the conductor d. 45 times greater than the OD of the conductor

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A. Riser tube B. Radiant tube C. Downcomer tube D. Superheated tube

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Fill in the blank(s) with correct word

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Late 19th-century farmers believed that their difficulties stemmed primarily from

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