CSD 315 EXAM PREP QUESTIONS ANSWERS STUDY GUIDE VERIFIED SOLUTION
Question:
Any soil profile with an indication of high-water table within _____ inches below the proposed
drainfield shall be considered _____________ for a standard drainfield.
Answer:
24, unsuitable
Question:
The ___________ and ____________ of each soil horizon should be measured from ________ to
_________ and recorded in the soil evaluation report.
Answer:
sequence, depth, top, bottom
Question:
The depth of soil classified as suitable with respect to texture shall be at least ____ inches below the
bottom of the proposed excavation for a standard drainfield.
Answer:
24
Question:
If a soil with no gravel will not form a ribbon in the texture-by-feel method, it is classified as
______ or ______, class ____.
Answer:
sand or loamy sand, Ib
,Question:
If a soil forms a ribbon greater than 2 inches, and neither smooth or gritty consistency predominates,
the soil is _______, class _____.
Answer:
clay, IV
Question:
Soil suitability factors include: _________, ________, and _________.
Answer:
soil texture, soil depth, and restrictive horizon
Question:
Overall site suitability factors include ________, ________, ___________, and ____________.
Answer:
site factor, soil factors, groundwater evaluation, and surface drainage analysis
Question:
A common reason for wastewater system failure is __________.
Answer:
hydraulic overloading (due to modernized tank usually)
Question:
The value Q is.
Answer:
Quantity of Sewage (GPD)
Question:
, Some malfunctioning OSSF can be made to function properly with minimal cost by implementing
______________.
Answer:
water conservation measures.
Question:
In estimating water usage for a single-family dwelling, the number of _________ in the home is a
key indicator; however, _________ should also be considered.
Answer:
bedrooms, square footage
Question:
List four water saving plumbing devices that can be used in a home.
Answer:
low flow toilets, low flow shower head, low flow faucets, pressure reducing valves
Question:
Identify four water-saving habits homeowners should adopt.
Answer:
don't leave water running, full laundry and dishwasher loads, reduce/eliminate use of garbage
disposals, not using toilet for trash disposal
Question:
Two wastewater tests commonly used to measure the strength of sewage are the ________ test and
the ________ test.
Answer:
BOD, TSS
Question:
Any soil profile with an indication of high-water table within _____ inches below the proposed
drainfield shall be considered _____________ for a standard drainfield.
Answer:
24, unsuitable
Question:
The ___________ and ____________ of each soil horizon should be measured from ________ to
_________ and recorded in the soil evaluation report.
Answer:
sequence, depth, top, bottom
Question:
The depth of soil classified as suitable with respect to texture shall be at least ____ inches below the
bottom of the proposed excavation for a standard drainfield.
Answer:
24
Question:
If a soil with no gravel will not form a ribbon in the texture-by-feel method, it is classified as
______ or ______, class ____.
Answer:
sand or loamy sand, Ib
,Question:
If a soil forms a ribbon greater than 2 inches, and neither smooth or gritty consistency predominates,
the soil is _______, class _____.
Answer:
clay, IV
Question:
Soil suitability factors include: _________, ________, and _________.
Answer:
soil texture, soil depth, and restrictive horizon
Question:
Overall site suitability factors include ________, ________, ___________, and ____________.
Answer:
site factor, soil factors, groundwater evaluation, and surface drainage analysis
Question:
A common reason for wastewater system failure is __________.
Answer:
hydraulic overloading (due to modernized tank usually)
Question:
The value Q is.
Answer:
Quantity of Sewage (GPD)
Question:
, Some malfunctioning OSSF can be made to function properly with minimal cost by implementing
______________.
Answer:
water conservation measures.
Question:
In estimating water usage for a single-family dwelling, the number of _________ in the home is a
key indicator; however, _________ should also be considered.
Answer:
bedrooms, square footage
Question:
List four water saving plumbing devices that can be used in a home.
Answer:
low flow toilets, low flow shower head, low flow faucets, pressure reducing valves
Question:
Identify four water-saving habits homeowners should adopt.
Answer:
don't leave water running, full laundry and dishwasher loads, reduce/eliminate use of garbage
disposals, not using toilet for trash disposal
Question:
Two wastewater tests commonly used to measure the strength of sewage are the ________ test and
the ________ test.
Answer:
BOD, TSS
