Septic Systems Exam LATEST VERSION
EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY
GRADED A+
With houses connected to sewer systems, waste water goes... - Answer - ✔ out of the
house and down into the city sewer pipe
Which is better for the environment: septic or sewage systems? - Answer - ✔ Septic;
does a better job at purifying water than sewage systems
Are septic systems feasible on a large scale? - Answer - ✔ Nopeee, that's why we have
sewer systems
Layout the steps of water treatment in a septic system. - Answer - ✔ 1. Drains from
house
2. Enters septic tank
3. Enters drainfield
4. Absorbed by soil
5. Purification
6. Becomes groundwater
Step 2: Waste enters septic tank - Answer - ✔ → *Septic tank*: settling tank where
sewage from the house is stored temporarily
→ Solid materials settle to the bottom of the tank to form sludge, while grease floats to
the top
→ Scum & sludge must be periodically pumped out of the tank
Describe the layout of a septic tank. - Answer - ✔ → Manhole or pipe on top
→ Baffles: walls that help prevent sludge and scum from exiting the tank
→ Sometimes, tank has larger baffle in middle (not in picture) to separate the solid side
from the liquid side
→ Essentially, wastewater travels in through the inlet baffle, settles, and travels out
through the outlet baffle into drain lines
Define: effluent - Answer - ✔ Leftover water after solids are removed
Step 3: Effluent/remaining solids enter drainfield (also called drainage field) - Answer -
✔ → Exits septic tank through drain lines (pipes with holes in them)
EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY
GRADED A+
With houses connected to sewer systems, waste water goes... - Answer - ✔ out of the
house and down into the city sewer pipe
Which is better for the environment: septic or sewage systems? - Answer - ✔ Septic;
does a better job at purifying water than sewage systems
Are septic systems feasible on a large scale? - Answer - ✔ Nopeee, that's why we have
sewer systems
Layout the steps of water treatment in a septic system. - Answer - ✔ 1. Drains from
house
2. Enters septic tank
3. Enters drainfield
4. Absorbed by soil
5. Purification
6. Becomes groundwater
Step 2: Waste enters septic tank - Answer - ✔ → *Septic tank*: settling tank where
sewage from the house is stored temporarily
→ Solid materials settle to the bottom of the tank to form sludge, while grease floats to
the top
→ Scum & sludge must be periodically pumped out of the tank
Describe the layout of a septic tank. - Answer - ✔ → Manhole or pipe on top
→ Baffles: walls that help prevent sludge and scum from exiting the tank
→ Sometimes, tank has larger baffle in middle (not in picture) to separate the solid side
from the liquid side
→ Essentially, wastewater travels in through the inlet baffle, settles, and travels out
through the outlet baffle into drain lines
Define: effluent - Answer - ✔ Leftover water after solids are removed
Step 3: Effluent/remaining solids enter drainfield (also called drainage field) - Answer -
✔ → Exits septic tank through drain lines (pipes with holes in them)
