In Figure 17-8, explain why TIC-301 is opening the valve to 100%.
What will be an ideal response?
Due to restricted flow from Ex-204 the controller is attempting to increase cooling water flow to the cooling tower. The set point is 125ºF and the process variable is 135ºF. Rather than by-pass the cooling tower, the controller recognizes the need to remove the additional heat from the cooling water.
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________: the condition where aggregate demand is equal aggregate supply
Fill in the blank(s) with the appropriate word(s).
Durante la instalación de la extensión abatible, ¿qué se debe hacer después de que se han retraído por completo todas las secciones de la pluma y se ha descendido la pluma a la elevación mínima?
a. Guiar la extensión abatible hasta que se agarre a la pluma principal. b. Jalar la barra de detención hacia afuera. c. En el soporte trasero abatible, coloque el pasador del pestillo y haga girar la placa del pestillo. d. Arreglar el motor principal para levantar cargas o el auxiliar para una sola parte de la línea.
__________is used as the electrolyte in automobile batteries.
a. Phosphoric acid b. Chloric acid c. Sulfuric acid d. Cupric acid
Levels of LEED building certification include:
A) Silver, Gold, and Platinum. B) Bronze, Silver, and Gold. C) Tin, Copper, and Bronze. D) Silver, Gold, and Emerald.