The type of fan or blower with a blade design that is self-cleaning and a good choice for air containing a lot of
dust or grease is the _____.
A) forward-curved centrifugal
B) radial
C) backward-inclined centrifugal
D) ducted fan
Answer: B
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Los cables de telecomunicación de caminos elevados se deben ubicar a______ de distancia de motores y transformadores.
a. 8" (20,32 cm) b. 18" (45,72 cm) c. 48" (121,92 cm) d. 72" (182,88 cm)
If the needed dimensions cannot be found on a drawing, try to obtain them by _____ the drawing itself.?
A. measuring? B. looking at? C. calculating? D. sketching?
Proper height above the roof is important when installing a heat pump rooftop unit:
A) To allow the condenser to take advantage of local prevailing wind. B) To ensure adequate combustion air to the burners. C) So that the unit can be serviced from underneath. D) So that snow does not block airflow through the outdoor coil.
ASE-Style Multiple Choice All of the following are examples of trade associations EXCEPT:
A. I-CAR B. NACE C. EEE D. ASA