Compare and contrast the various tubes described in boiler operation.


What will be an ideal response?


The tubes found in a boiler include:
• water make-up tubes and distributer
• downcomer
• riser tubes
• steam generating
• superheated- high pressure steam
• desuperheated-lower pressure steam
• spuds- fuel filled tubes

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The Output symbol with a (?) indicates that the symbol needs a(n) ____________________.

Fill in the blank(s) with the appropriate word(s).

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Springback is a term used to describe the _____.

a. return of the bender shoe to its normal position after a bend b. reaction of a power bender after the machine is jogged c. tendency of the conduit to relax to a bend angle slightly less than that indicated on the bender pointer when the bender is released d. amount of take-up required for a sweep bend

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Less than _____ percent of the slaughter hogs marketed in the United States are sold through terminal

marketing.

a. 10 c. 8 b. 15 d. 1

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Which of the following is a reason (are reasons) for the interest of managers on quality?

a. cost. b. competition. c. productivity. d. All of these are correct. e. None of these are correct.

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