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OSSF Installer 2 License Exam And Answers
A+ Rated Already Passed 2025
The primary threat from malfunctioning OSSF systems is water born disease Wastewater disposal and OSSF systems are regulated in order to protect Public health and environment A ______ is a disease-causing microorganism Pathogen A groundwater chemical contaminant that can result from septic tanks and leachfields is which can cause_____in infants Nitrates and methoemoglobinmia Statewide regulation of OSSF began in 1989 Sept The state agency responsible for regulating OSSF is TECQ The desired method or level of OSSF regulation in Texas is _______regulation
Local pH measures whether wastewater is ______\or_________ Acidity Basicity List six diseases that might be transmitted by inadequately treated sewage. Typhoid Paratyphoid Polio meningitis Hepatitis Cholera Identify the following terms TSS DO BOD Total Suspended solids Dissolved Oxygen Biochemical oxygen demand Identify the most common chemical elements of sewage Solids Gases Fats and greases DO BOD PH
d. Designated representative An individual who holds a valid license from TCEQ and who is compensated by another individual to construct install , alter , or repair an OSSF is a ( n ) a. Installer b. apprentice c. authorized agent d. maintenance provider a. Installer An individual who visits a site and conducts soil evaluations and a site survey is a ( n ) a. apprentice b. Site evaluator c. authorized agent d. designated representative b. Site evaluator _____adopted the current OSSF Rules in 1997 and revised them several times.
TCEQ
New OSSF licenses are issued for a term of _______.An individual must renew the license complete _________of TCEQ approved continuing education courses in order to 3 years 24 hrs an Individuals working as a _________ or in any capacity for an OSSF __________cannot work as an installer designer for a fee , or private site evaluator within jurisdiction of the permittinh authority DR and Permitting agency List the OSSF licenses that require previous experience Installer II Maintenance provider What is needed to pre - qualify for an exam? Submit an application Notarized experience Statements Paying class and application Fees Completing the appropriate training Course
Most OSSFs use the soil to _______and t_______ wastewater absorb and treat The most permeable of the above textural class would be 2b Mottled soil , particularly with bright and gray variations , is often indicative of _______soil. Seasonally A very common reason for soil absorption system failures is inadequate lot Size When systems fail in urban or suburban areas , there is a serious threat of the spread of Water born disease Lots served by individual wells should be a minimum of ________acre in size for a septic tank system one acre
Lots served by a public water supply should be a minimum of _______ acre in size for installation of a septic tank system one - half When minimum lot size cannot be met , an on site system must be designed by a _______ or a _________ Pro engineer or a Pro Sanitarian When evaluating a topography site _________and potential for ________are key considerations Slope floodind A major reason for wastewater system failure is a homeowner waste b. inadequate planning c. hydraulic overloading d. oils grease and fats c. hydraulic overloading grease
Identify four water saving living habits homeowners should adopt Waiting for full loads before running clothes or dishwashers Not using the toilet to dispose of trash such a cigarette butts tissue paper or sanitary napkins Not leaving the faucet running when shaving or brushing teeth Reducing or eliminating the use of garbage disposals The value of Q Quantity of sewage (gallons/day) Two wastewater tests commonly used to measure the strength of sewage are the _______ and the _____ BOD and the SS Blockage in the home plumbing system is often caused by _______, _______ and
Oils fats and grease
It is recommended that ____________not be used because they significantly increase the amount of suspended solids and organic matter discharged into the sewage disposal system Garbage disposal Wastewater containing no DO is referred to as ___________is __________, and has _________odor. Septic Dark grayto black color strong disagreeable Information on boundaries and property lot size , soil conditions , and location of existing or planned buildings is obtained during the a. permit application b. site evaluation c. construction d. installation b. site evaluation
Fiberglass Other materials approved by TECQ Reinforced plastic polyethylene Complete the following requirements for a house sewer. The pipe from the house to the septic tank must have a minimum inside diameter of no less than 3 inches. b. The slope of the house sewer shall be no less than 1/8 fall per foot of pipe.. The stub out location should be at the highest possible elevation with respect to the house foundation to avoid deep septic tanks. d. The line must be of Watertight construction e A two way clean out plug must be provided between the building and the septic tank. f. All fittings should be of the Sanitary type. g. An additional cleanout may be single type ) must be provided within 5 of every 90 ° bend and for every 50 ' of straight horizontal piping
a. 3 b. 1/ c .highest. d. Watertight e. clean out septic f. Sanitary g. 5 and 50 ' The size of any drainfield is dependent on what two factors? Sewage bading or volume in gallons day = a Long term soil acceptance rate determined by Class Complete the following requirements for a standard absorptive drainfield a. Minimum depth is ___" inches. b. Minimum separation between drainfield excavations is ____' feet. c. In most cases , the maximum drainfield depth is _____' feet. d. The porous media most commonly used is _______gravel.
d. Use aerobic bacteria and carbon dioxide to produce complex organic compounds and natural gas c. Use aerobic bacteria and oxygen to breakdown complex organics and produce carbon dioxide To determine if a proprietary aerobic treatment plant is appropriate for use with surface application disposal it must a. be on the TCEQ's most recently approved list b. be able to maintain a minimum DO of 4.0 mg / L c. have a volume equal to three times the expected daily flow d. be certified by a PE or RS to provide 90 % or better treatment d. be certified by a PE or RS to provide 90 % or better treatment To determine the minimum size of aerobic treatment plant needed for a particular home , one must know d a. soil acceptance rate ( R₂ b aeration and clarifier volumes c. rate of irrigation ( R ) from OSSF Rules d. number of bedrooms in the home and refer to TCEQ Table II
d number of bedrooms in the home and refer to TCEQ Table II Which of the following is a likely cause of a " rotten egg " odor from an aerobic treatment plant? a. Chlorinator failure b. Mechanical aerator failure c. Failure to install a trash trap d. Hydraulic overload caused by a leaking toilet b. Mechanical aerator failure and need for wasting? Which of the following is a way of evaluating an aerobic treatment plant for excessive solids a. DO test. b. BOD5 analysis c. 30 - min. settling test d. Chlorine residual test in mg / L c. 30 min. settling test
c. Soil and site conditions d. Maintenance and service availability c. Soil and site conditions would include On a west Texas site with 16 in of Class Ia soil over fractured rock suitable OSSF systems a. lined or unlined ETs b. lined ET or LPD systems c. lined ET or mound systems d. surface application or leaching chamber systems c. lined ET or mound systems chamber The minimum soil requirements for leaching chambers or gravelless pipe systems following a septic tank are A. 2 ft. of Class Ib , II , or III soil below the field bottom B. the same as for a standard absorptive drainfield C. 4 ft. of permeable soil with no more than seasonable saturation D. both a and b D both a and b
OSSF surface application always requires a. at least primary treatment and disinfection b. at least secondary treatment and disinfection c. primary treatment and disinfection or secondary treatment atenti d. tertiary treatment bvad b. at least secondary treatment and disinfection vision Why is surface application often selected over other OSSF disposal options ? a. Small lots diw it b. The lake front setback for waterfront property assage nonsollege c. Clay soils and / or seasonal groundwater problems qb d. The irrigation water available for vegetable gardens or orchards c. Clay soils and / or seasonal groundwater problems Which of the following is required to determine the size of spray area required for an OSSF spray irrigation system? a. soil R , in gal./ft.2/day and Q in gal./min.
