What is the function of the Lantern Ring?
What will be an ideal response?
This provides a seal to prevent air from being drawn in. It also provides positive lubrication for the primary packing rings. Lantern rings also permit the injection of a clean, cool fluid for pumps handling chemical or abrasive materials.
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In what position does a boom extension for lifting have the greatest lifting capacity?
a. Boom fully extended and at 0 degrees elevation (horizontal) b. Boom fully extended and at 45 degrees elevation (pointing up at a 45 degree angle) c. Boom fully retracted and at 0 degrees elevation (horizontal) d. Boom fully retracted and angled up to its maximum angle
The separately derived system equipment bonding jumper is now called the ___________________.
Fill in the blank(s) with the appropriate word(s).
? Identify and state the historical significance of Maximilian.
What will be an ideal response?
As the outdoor ambient temperature increases, the required superheat:
A) Increases. B) Decreases. C) Stays the same. D) Outdoor ambient temperature does not affect superheat.