La función del calentador de aire es _____.
a. mantener el combustible caliente
b. precalentar el aire de combustión
c. calentar la central eléctrica
d. calentar el humo para la chimenea
b. precalentar el aire de combustión
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The output of the diode trio is connected to the alternator positive output voltage terminal.
Answer the following statement true (T) or false (F)
The accompanying figure shows the parts of a window. What is feature 3?
A. Muntin B. Stile C. Sill D. Rail
Types of humidifiers used with commercial air-handling equipment include:
A) Direct expansion, chilled water, and steam. B) Bypass, atomizing, and wetted media. C) Steam grid, steam pan, and direct water spray. D) Direct expansion, steam, and hot water.
When some of the surfaces of an object are machined to certain specifications, a surface finish symbol is placed on the view where the surface or surfaces ____.
A. appear in their true size and shape B. are most readily seen C. appear as planes D. are described with notes E. none of the above