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10 Cards in this Set
- Front
- Back
Find how many gallons of liquid are in a tank which measures 40' long, 25' wide, and 12' high
a. 89772 b. 79872 c. 67859 d. 90272 |
a. 89772
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If the influent SS are 200mg/L and the effluent SS are 16mg/L what is the removal efficiency?
a. 93% b. 92% c. 85% d. 97% |
b. 92%
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If a sludge draw off of 8000g contains 6% soids, how many lbs were pumped?
a. 2842lbs b. 2916lbs c. 4003lbs d. 16091lbs |
c. 4003lbs
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If two pumps will pump 120gpm each, how long will it take to fill a tank 50' long, 20' wide, and 8' deep?
a. 2hrs 27min b. 4hrs 42min c. 4hrs 9min d. 1hr 49min |
c. 4hrs 9min
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What is the approximate volume of flow (MGD) treated in a 7' wide, 4' deep grit chamber, if a floating stick moves 24' in 30 seconds?
a. 13.65MGD b. 16.7MGD c. 15.42MGD d. 14.52MGD |
d. 14.52MGD
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The formula for calculating the volume of a wet well is:
a. V = L x W x C b. V = W x A x P c. V = W x L x H d. V = W x H x D |
c. V = W x L x H
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The diameter of a wet well is 10'. If filled to a depth of 10', It will contain approximately:
a. 2987g b. 5875g c. 6024g d. 10,602g |
b. 5875g
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A sludge pump with a 6" bore and 3" stroke pumps 60 cycles/min. What is the pumping rate in gpm?
a. 22.5gpm b. 18gpm c. 26.75gpm |
a. 22.5gpm
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What is the average detention time in a clarifier given the following:
Diameter is 30' Depth is 15' Flow is 700gpm a. 1hr 34min b. 1hr 53min c. 1hr 47min |
b. 1hr 53min
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What is the average detention time in a clarifier given the following:
Diameter is 80' Depth is 12.2' Flow is 5MGD a. 2.2hrs b. 1.68hrs c. 2.4hrs |
a. 2.2hrs
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