1. A louver is rated to resist water penetration for velocities up to 1000 fpm (5.1 m/s) and has 70% free area. What is the maximum airflow that can flow through a louver with an overall area of 12 ft2 (1.11 m2)?
A. 3600 cfm (102 m3/min)
B. 8400 cfm (238 m3/min)
C. 12,000cfm(340m3/min)
2. An existing building is served by a chiller plant operating at delta T 10F (5.56 C) with total chilled water flow 700 U.S. gpm (44.16 L/s). The building owner decides to replace the chiller plant with a new high- performance chiller plant, while maintaining the same total cooling capacity. The new chiller plant will operate at delta T 14F (7.78 C). What is the TOTAL chilled water flow of the new pump(s)?
A. 500 U.S. gpm (31.55 L/s)
B. 700 U.S. gpm (61.83 L/s)
C. 980 U.S. gpm (44.16 L/s)
3. 100 GPM (378 LPM) of water is pumped with a 2 HP base-mounted pump operating at 75% efficiency. What is the approximate head loss on the system?
A. 40 ft (120 kPa)
B. 60 ft (180 kPa)
C. 80 ft (240 kPa) Avoid using the following keywords: area, airflow, capacity, base
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