The flow resistance through the heat exchanger of an oil furnace is frequently increased because of:
A) Internal collapse of the heat exchanger. B) Loose heat exchanger cross-baffle members.
C) Water accumulation. D) Soot accumulation.
D
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¿Qué es un economizador?
a. Una válvula de combustible b. Un mezclador de aire c. Un precalentador para agua de alimentación de calderas d. Un recalentador para vapor
Inspecting ladders before every use may prevent a fall.
It has been said that "the historian who searches for examples of intelligent and tolerant statesmanship in the period 1850-1854 seeks almost in vain." Citing the "statesmanship" of men like Clay, Douglas, Webster, Calhoun, Pierce, and Fillmore, demonstrate that this argument is or is not supportable.
What will be an ideal response?
Over the previous three weeks a work center produced 36, 43, and 35 standard hours of work. What is the demonstrated capacity?
A) 36 standard hours B) 43 standard hours C) 38 standard hours D) 114 standard hours