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OSSF INSTALLER 2 LICENSE EXAM WITH COMPLETE QUESTIONS AND
CORRECT VERIFIED ANSWERS(DETAILED ANSWERS) ALREADY GRADED
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Statewide regulation of OSSF began in - CORRECT ANSWER- 1989 Sept
The state agency responsible for regulating OSSF is - CORRECT ANSWER- TECQ
The desired method or level of OSSF regulation in Texas is regulation -
CORRECT ANSWER- Local
pH measures whether wastewater is \or - CORRECT ANSWER-
Acidity Basicity
List six diseases that might be transmitted by inadequately treated sewage. -
CORRECT ANSWER- Typhoid Paratyphoid Polio meningitis Hepatitis Cholera
Identify the following terms TSS DO BOD - CORRECT ANSWER- Total Suspended
solids Dissolved Oxygen
Biochemical oxygen demand
The primary threat from malfunctioning OSSF systems is - CORRECT ANSWER-
water born disease
Wastewater disposal and OSSF systems are regulated in order to protect -
CORRECT ANSWER- Public health and environment
A is a disease-causing microorganism - CORRECT ANSWER- Pathogen
A groundwater chemical contaminant that can result from septic tanks and
leachfields is which can cause in infants - CORRECT ANSWER- Nitrates and
methoemoglobinmia
Identify the most common chemical elements of sewage - CORRECT ANSWER-
Solids Gases Fats and greases DO BOD PH What is the criteria that can be used to determine if a subsurface OSSF system is
functioning properly? - CORRECT ANSWER- The Plumbing system must drain
No Water is surfacing or pooling above ground
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 - CORRECT ANSWER- b. Site evaluator
adopted the current OSSF Rules in 1997 and revised them several times. -
CORRECT ANSWER- 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 - CORRECT ANSWER- 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 - CORRECT ANSWER- DR
and Permitting agency
List the OSSF licenses that require previous experience - CORRECT ANSWER-
Installer II Maintenance provider
What is needed to pre - qualify for an exam? - CORRECT ANSWER- Submit an
application
Notarized experience Statements Paying class and application Fees Completing the appropriate training Course Penalties for violating the laws , rules , or regulations covering OSSF systems can
be imposed under what headings? - CORRECT ANSWER- Criminal penalties
Injunction civil Suit Administrative What should be included in an evaluation of a lot for design and installation of a
septic tank system? - CORRECT ANSWER- lot Size
Soil and Geolgic Setbacks Flood hazards Give a brief description of the three textural classes of soil suitable for a standard
absorptive drainfield according to Texas OSSF rules - CORRECT ANSWER- Class b
= Description Sandy Class 2 - Description Course loamy Class 3 - Description fine loamy and Sandy Clay
Most OSSFs use the soil to and t wastewater - CORRECT
ANSWER- absorb and treat
The most permeable of the above textural class would be - CORRECT ANSWER-
2b
b. inadequate planning c. hydraulic overloading
d. oils grease and fats - CORRECT ANSWER- c. hydraulic overloading grease
The size of OSSF systems are normally based upon the a. lot size b. soil profile c. hydraulic loading
d. homeowner's preference - CORRECT ANSWER- c. hydraulic loading
Some malfunctioning OSSF systems can be made to function properly with
minimal cost by implementing - CORRECT ANSWER- Water
The first step in reducing the wastewater load is - CORRECT ANSWER-
Elimination of leaks
List four water - saving plumbing devices that can be used in a home - CORRECT
ANSWER- Reduce flow shower head
Faucet aerators Reduce flow faucet Pressure reducinh valves
Identify four water saving living habits homeowners should adopt - CORRECT
ANSWER- 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 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 - CORRECT ANSWER- b. site evaluation
should NOT be allowed over the OSSF treatment unit or drainfield a. Vegetation b. Mowing c. Earth fill
d. Rainfall runoff - CORRECT ANSWER- d. Rainfall runoff
Septic tanks must have a or compartment design. - CORRECT
ANSWER- 2 or 3
List three of the materials acceptable for the construction of treatment and pump
tanks - CORRECT ANSWER- 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 - CORRECT ANSWER- a.
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? - CORRECT
ANSWER- 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. - CORRECT
ANSWER- a. Minimum 18 "
b. 3 ' c. In ' d. The Clean Gravel A of shall be placed on top op the porous media before
backfilling - CORRECT ANSWER- Permeable barrier geo fabric
The backfill above the barrier and gravel should be type , or
soil. - CORRECT ANSWER- 1b,11 or 11
Which of the following is true of aerobic treatment plants? a. Able to maintain a minimum DO of 4.0 mg / L
a. Chlorinator failure b. Mechanical aerator failure c. Failure to install a trash trap
d. Hydraulic overload caused by a leaking toilet - CORRECT ANSWER- 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 - CORRECT ANSWER- c. 30 min. settling test
mg / L Which of the following is true of an intermittent sand filter? a. Provides secondary wastewater treatment b Has a maximum surface loading rate of 1.2 gal./day/ft. c. Requires at least 24 in. of filter media that meets definite specifications ( ASTM C - 33 )
d. All the above - CORRECT ANSWER- d. All the above
Trickling filters and wetlands a. are anaerobic treatment systems b. are secondary treatment processes c. are widely used across Texas for OSSF treatment
d. rely on straining or filtering as the main treatment mechanism - CORRECT
ANSWER- b. are secondary treatment processes
Which of the following considerations should receive the greatest emphasis in selecting a type of OSSF system disposal option? a. System cost b. Electrical rates c. Soil and site conditions
d. Maintenance and service availability - CORRECT ANSWER- 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 - CORRECT ANSWER- 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. maximum aerobic plant capacity and the soil acceptance tance rate rate ( R₂ ) -
CORRECT ANSWER- c. rate of irrigation ( R ) allowed in that area and ( Q ) in
gal./day Which systems routinely require a pump tank? a. LPD and leaching chambers b. Gravelless pipe , sand filters and LPD c. Surface and drip irrigation and sand filters
d. Drip irrigation and standard absorptive drainfields - CORRECT ANSWER- c.
Surface and drip irrigation and sand filters The setback from a public water well for an aerobic plant is a. 50 feet b. 100 feet c. 150 feet
d. determined based upon slope percent - CORRECT ANSWER- A.
A legal maintenance company for a surface application OSSF system using proprietary aerobic plant must have an employee who is which of the following? a. A licensed maintenance provider b. A registered maintenance technician c. A registered installer and maintenance technician
d. A registered installer or class D wastewater operator - CORRECT ANSWER- a.
A licensed maintenance provider
Which OSSF disposal systems are routinely required to have maintenance contracts? a. LPD mounds and lined ETs b. Sand filters with LPD disposal c.LPD and surface application systems
d. Surface and subsurface drip irrigation - CORRECT ANSWER- d. Surface and
subsurface drip irrigation What is the purpose of requiring an affidavit to be filed with the county real property records for a surface application system? a. To ensure a permit was obtained b. To ensure the future DR has a permanent record c. To notify the current property owner of the type of OSSF system used and maintenance requirements d. To notify future property owners of the type of
OSSF system used and the maintenance requirements - CORRECT ANSWER- d.
To notify future property owners of the type of OSSF system used and the maintenance requirements Required samples for testing from a surface application system are collected from a .all chambers b. the aeration chamber. c. the surface of the clarifier
. d. the pump tank effluent line port - CORRECT ANSWER- d. the pump tank
effluent line port new three bedroom
d. Dissolved organics - CORRECT ANSWER- c. Suspended solids
A drip irrigation system must a. not be installed in Class IV soils b. be installed at a minimum depth of 18 in. c. have pressures adjusted to less than 10 psi on distribution lines d. be equipped with mechanisms to flush from the drainfield back to the
treatment unit - CORRECT ANSWER- d. be equipped with mechanisms to flush
from the drainfield back to the treatment unit A mound or soil substitution drainfield often used a. In wetland areas b. Without treatment c. In conjunction with secondary treatment d. When existing soils will not provide adequate treatment due to depth or texture
- CORRECT ANSWER- d. When existing soils will not provide adequate treatment due to depth or texture
