What type of boiler consists of a shell and a series of steel tubes that transfer heat through a combustion chamber into the horizontal fire tubes?
a. Water tube boiler
b. Waste heat boiler
c. Fire tube boiler
a. Incorrect. Water tube boilers contain water-filled tubes that allow water to circulate through a heated firebox.
b. Incorrect. Waste heat boilers are devices that use excess heat from a process to produce steam.
c. Correct. Fire tube boilers are devices that pass hot combustion gases through the tubes to heat water on the shell side of the exchanger.
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Fill in the blank(s) with the appropriate word(s).
If a CMU wall is vertically reinforced at 16 in. on centers, which of the following units will you recommend for use in the wall?
A) A-unit B) H-unit C) Bond beam unit D) Sash unit E) Standard unit with three webs
Name the base of the foundation system used to displace the building loads over the soil.
What will be an ideal response?
__________ are devices that, when in place, prevent the accidental energizing of equipment.
A. Lockout devices B. OSHA devices C. Tagout devices D. Warning devices