What fan performance characteristics are shown on a typical fan curve?
A) Sound levels, bearing temperatures, and reluctance
B) RPM, tip speed, and horsepower
C) Pressure drop, efficiency, and horsepower
D) Horsepower, RPM, and reluctance
C
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To get proper ventilation-damper orientation and adequate filtration systems into the design of a new building’s HVAC equipment, one should consider outside-air duct locations, neighboring pollutant sources, and the _____.
a. prevailing wind conditions at the site b. layout of the pneumatic control systems c. required humidifier/ dehumidifier capacity d. amount of insulation being added to the walls
To ____________________ a file system is to connect it to the directory tree structure.
Fill in the blank(s) with the appropriate word(s).
The ignition system is usually divided into ________ different sections
A) Four B) One C) Three D) Two
An oblique surface is perpendicular to _____ principle projection planes.
A. 0 B. 1 C. 2 D. 3