Name the three factors that determine the heat output of cast iron radiator units.
What will be an ideal response?
1) The temperatures of the surrounding air (assumed to be 70ºF); 2) the temperature of
the radiator’s surface; 3) the surface area of the radiator.
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By inspection of the figure, which of the following statements is false?
Consider the following figure that describes the solid-liquid equilibrium of a binary mixture:
A. The melting point of component 1 is about 345 K.
B. The system would be reasonably modeled by an ideal solution for the liquid and an ideal solution for the solid.
C. The system forms an immiscible solid solution.
D. The melting point of component 2 is about 395 K.
E. None of the above are false.
Use the graphic scale shown on the map of the State of Texas in Figure R3–1 to approximate the distance between the following locations using the most direct route.
1. Laredo to Cotulla. 2. Beaumont to Houston. 3. Dallas to the State of Louisiana. 4. Lake Meredith to Lubbock. 5. Baffin Bay to San Antonio.
In hand-set multicomponent decks, joists normally _____.
a. are laid across the stringers b. are fabricated from aluminum c. support the stringers d. are spaced a minimum of 10' apart
Las dos dimensiones que un electricista debe conocer al realizar un codo en caballete de 90° son:
a. el diámetro de la tubería eléctrica y la elevación. b. el radio del codo y el diámetro de la tubería eléctrica. c. la elevación deseada y la distancia de ajuste-corrección. d. la distancia de ajuste-corrección y el diámetro del conducto.