Exam Math Review Collection Grades I & II Small Lagoon System ...
Exam Math Review Collection Grades I & II Small Lagoon System ...
Exam Math Review Collection Grades I & II Small Lagoon System ...
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<strong>Exam</strong> <strong>Math</strong> <strong>Review</strong><strong>Collection</strong> <strong>Grades</strong> I & <strong>II</strong><strong>Small</strong> <strong>Lagoon</strong> <strong>System</strong>Answer Key1he LJivision oJ Water {dualitymakes no claim as to theaccuracy ofallY answersprovided herein.
· ,Certification <strong>Exam</strong> <strong>Review</strong><strong>Collection</strong>s Grade I & <strong>II</strong><strong>Small</strong> <strong>Lagoon</strong> <strong>System</strong>s<strong>Math</strong> Problems - ConversionsI. 100 feet of pressure head is how many psi?p:;" = 2.3\ \-t\00 ~ 42>.29'2..31 -h- =2. 750 cubic feet of wastewater is how many gallons?~2> +.1..\'6\ = J"'\:::, + -1 ,,-,\.' ,-=;-SG ~ x.~ ..... .J.....J3. A 10 KW motor will run what horsepower pump?\.3 U r,p1,0 KW x,\3.4 kW\ KW<strong>Math</strong> Problems - AreasJ. How square feet are there in a 6 inch diameter pipe?, in a :-; inch diameter pipe?~ '0'") =- O.S 4
2. What is the surface area of a lagoon the is 225 feet by 300 feet. The lagoon operatesat a depth of 4 feet., 13. After installing a main through a park, a strip that is 1200 feet long and 6 feet widethat must be reseeded with grass. If one bag of grass seed covers 1,000 ft 2 . Howmany bags of seed do you need to buy?\'-00 +1- "'- G, 4 - ~2.200 ~<strong>II</strong>\ -4~b~ = 1000..., L-,-.~'---~\:"I - I '-- . JJ-t 2. 1 '=- (~) x. r - - 7- 2~ ...~-----v--- (S t·, . )<strong>Math</strong> Problems - VolumesI..How many gallons will a wet well 50 feet long by 20 feet wide and 8 feet deep hold?" "2. How many cubic feet of wastewater will a 4,500 foot section of 8 inch pipe hold?'61>1'1 =- 0.001'- BO. ::j- S; S x (, 0 . G, (;; +- tt ) L X If. SO 0 -\+ = \ S'10-ft- "l+.4 C ;' ')",1I 4t ~\ I ~ 43. G j 0\ I
3. A lagoon system has a surface area of 3.5 acres. The lagoons hold 4,500,000 gallonsof wastewater. What is the operating depth of the lagoons?\ 4-:) =: 2 y ::':,4, sao, 0 00 ~ ... \ x -:+ .Y S :j ~ I=. (,,01, (,OYo c.. :=. w.~, S (,0 ++ 1..4.3 500 4 L(,0 I, GOY, 3 -4 J 3.9 HI S 2, '-\ 00 B- 'l.<strong>Math</strong> Problems - Times1. [f two 130 gpm pumps are used how, long will it take to de-water a rectangular tank50 feet long by 20 feet wide and 8 feet deep?r, ,3SO w- "- "2. 0 4 'A ~/ J. ' x- I ~.3 .5 ,~()- .J\ Vv1 \ '""< ..., I _n-. " ,-.... ..../'2. If it takes 2 people 10 hours to do a job, how many hours will it take 5 people to dothe same job?10 LO -\.,...20 '"""~,,., -\.,~5 p
<strong>Math</strong> Problems - Efficiency1. What is the efficiency of the lift pump motor, if a 10 KW motor is required to run a10 hp. pump'!, k W -= 1."2>!-4 \", 1)10 kvJ )(\.31.-\ 1...,,)\ V-W='>
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