Calculate the required drainage capacity for a roof drain on a 40' x 60' warehouse roof in Hilo (annual rainfall 126 inches). What minimum drain diameter is required?
Correct Answer
C) 8 inches
For high rainfall areas like Hilo, roof drains must handle 1 inch per hour per 100 sq ft. A 2,400 sq ft roof requires 8-inch minimum drain diameter to handle the 24 GPM flow rate.
Why This Is the Correct Answer
For high rainfall areas like Hilo, roof drains must handle 1 inch per hour per 100 sq ft. A 2,400 sq ft roof requires 8-inch minimum drain diameter to handle the 24 GPM flow rate.
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A concrete slab in Honolulu requires 4,200 cubic feet of concrete. If the specified mix design calls for 6.5 sacks of cement per cubic yard, how many sacks of cement are needed for this project?
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A building in Kona requires seismic design. The structure has a weight of 180,000 lbs and is located in an area with a seismic design coefficient of 0.15. Calculate the minimum seismic base shear force.