Download OSSF INSTALLER 1 LICENSE EXAM WITH COMPLETE QUESTIONS AND CORRECT VERIFIED ANSWERS(DETAILE and more Exams Water and Wastewater Engineering in PDF only on Docsity!
OSSF INSTALLER 1 LICENSE EXAM WITH COMPLETE QUESTIONS AND
CORRECT VERIFIED ANSWERS(DETAILED ANSWERS) ALREADY GRADED
A+ 100% GUARANTEED TO PASS CONCEPTS!!!
Surface water - CORRECT ANSWER- refers to water that is found above ground
in containment areas, such as lakes, rivers, streams, creeks, and reservoirs.
Water table aquifers are recharged by - CORRECT ANSWER- Local percolation
sepage pits - CORRECT ANSWER- Rock-filled or lined pits dug at least 4 feet deep
at the end of a septic tank absorption field system are called
Cess pools - CORRECT ANSWER- Pits constructed in permeable soil with open-
jointed material along the sides to the bottom of the pit that receive a direct discharge of raw wastewater are called
How are waterborne diseases transmitted? - CORRECT ANSWER-
Microorganisms (pathogens) that live in the intestine are passed in the feces and get into the water supply
In the hydrologic cycle, water moves by evaporation and transpiration into the -
CORRECT ANSWER- Atmosphere
evaporation where it comes in contact - CORRECT ANSWER-
Ground Water - CORRECT ANSWER- The term refers to water that collects
beneath the surface of the earth in porous, permeable, water-bearing geologic formations or aquifers. What are the three primary routes of contamination for pathogenic microorganisms and harmful chemicals from on-site sewage systems to our
environment? - CORRECT ANSWER- Neighborhood pollution
Groundwater contamination Surface water pollution
What problems are a result of neighborhood pollution? - CORRECT ANSWER-
Diseases that can be spread by direct or indirect contact with the standing wastewater. Vectors, such as roaches and flies, that can also spread diseases after coming in contact with the wastewater. Unsightly and unpleasant living conditions that result from the standing wastewater and odors. Feuds and bad relationships between neighbors that can result from the wastewater problems.
Point source vs non point pollution - CORRECT ANSWER- Point source comes
from specific locations through discharge structures (pipes or ditches). Can be monitored, controlled, and inspected Nonpoint source is intermittent, dispersed flow that escapes from pollution sources with little or no control
Groundwater quality is recognized as a minor problem in Texas. - CORRECT
ANSWER- False
Cesspools and seepage pits are legal systems in Texas and may be installed. -
CORRECT ANSWER- False
Bore holes and injection wells are legal in Texas and may be installed. - CORRECT
ANSWER- False
Artesian aquifers can be contaminated by bore holes and injection wells. -
CORRECT ANSWER- True
A local government with the authority to regulate septic systems is termed an -
CORRECT ANSWER- Authori ced Agent
A person legally constructing OSSF systems as a business is an and must be
licensed by - CORRECT ANSWER- Installer, TCEQ
Penalties for violating OSSF regulations fall under the following headings: -
CORRECT ANSWER- Criminal
Civil Administrative
Installers must renew their registration (how often) - CORRECT ANSWER- 3 yrs
A professional designer is either a with experience in the design of -
CORRECT ANSWER- Professional Engineer, Registered sanitarian, onsite waste
water systems In America, laws can be successfully enforced only when the majority of citizens
voluntarily comply. - CORRECT ANSWER- True
Homeowners should be educated the need for and importance of maintaining
their OSSF system. - CORRECT ANSWER- True
On-site sewage facilities (OSSF) have been regulated statewide since - CORRECT
ANSWER- Sept I 1989
The state agency responsible for regulating OSSF systems is - CORRECT
ANSWER- TCEQ
What is the area of a septic tank lid that is 5 feet in diameter? - CORRECT
ANSWER- 19.6 ft
The area of a lot is 20,076 square feet. What is the area of this lot acres? -
CORRECT ANSWER- .46 ac
A septic tank has a working volume of 31 cubic feet. How many gallons does this
septic tank hold? - CORRECT ANSWER- 231.88 gallons
A trench requires 430 ft³ of gravel. How many cubic yards must be purchased? -
CORRECT ANSWER- 15.92 yd^
What is the slope across a lot that is 200 feet deep and has an elevation of 683
feet on the north side and 707 feet on the south side? - CORRECT ANSWER- 12%
What is the drop in inches of a pipe laid on a 0.33% grade over 150 feet? -
CORRECT ANSWER- 5.94 in
A septic tank is 6 feet in diameter and is 8 feet deep. How many gallons will it hold if the overflow line is halfway up from the bottom. (Would this meet minimum capacity
requirements for a three bedroom home?) - CORRECT ANSWER- 845.53 gallons,
yes How many cubic yards of gravel would be needed to fill a ditch with 18 inches of gravel if
- the ditch is 3 feet deep, 10 feet wide, and 12 feet long? Note: 1 cubic yard =
- cubic feet - CORRECT ANSWER- 6.67 yd^
