1
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PMT 108 Principles of water Test 4
Questions and Answers (100% Correct
Answers) Already Graded A+
About how much percentage of organic material does Primary
treatment of domestic wastewater contain? [ANS:] 65% organic
material
Which term describes human body wastes from toilets, urinals and
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soil drains; also referred to as sewage? [ANS:] Black water
Which term describes wastewater that originates from culinary
activities, bathing and laundry facilities deck drains and other
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waste drains? [ANS:] Grey Water
When discharging wastewater into the environment what does
any entity require before doing so? [ANS:] NPDES Permit (National
Pollutant Discharging Elimination System)
Who issues a NPDES Permit? [ANS:] EPA
How many days prior to the expiration date must one file an
NPDES Permit? [ANS:] 180 days
How long is an NPDES Permit valid for? [ANS:] 5 years
Which term describes a small covered, pit lines with brick or stone
designed to allow leaching out? [ANS:] Cesspool
Which term describes break or cut up solids to such size that they
can be returned to the wastewater without danger of clogging
pumps or piping or affecting subsequent treatment devices? (two
words) [ANS:] Comminuting devices
, 2
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Which term includes grinders, cutters, or shredders? (2 words)
[ANS:] Comminuting devices
Describe the health and personal protective protective
requirements for wastewater treatment personnel [ANS:] -
Immunizations
- No hand to mouth contact while in direct source of
contamination
- PPE for spills
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4 purposes of wastewater treatment [ANS:] - Protect community,
- prevent contamination,
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- maintain clean water,
- conserve water
Which term: Wastewater or other liquid partially or completely
treated or in its natural state flowing out of a reservoir, basin,
sewage treatment plant, industrial plant or marine sanitation
device [ANS:] Effluent
Which term: Human body wastes from toilets, urinals and soil
drains; also referred to as sewage [ANS:] Black Water
Which term: A motor driven grinder used to pulp sewage solids
before they enter the Marine Sanitation Device [ANS:]
Comminutor
Which term: Requires the use of discharge permits for all
wastewater producers [ANS:] NPDES
For Expert help and assignment solutions, +254707240657
PMT 108 Principles of water Test 4
Questions and Answers (100% Correct
Answers) Already Graded A+
About how much percentage of organic material does Primary
treatment of domestic wastewater contain? [ANS:] 65% organic
material
Which term describes human body wastes from toilets, urinals and
© 2025 Assignment Expert
soil drains; also referred to as sewage? [ANS:] Black water
Which term describes wastewater that originates from culinary
activities, bathing and laundry facilities deck drains and other
Guru01 - Stuvia
waste drains? [ANS:] Grey Water
When discharging wastewater into the environment what does
any entity require before doing so? [ANS:] NPDES Permit (National
Pollutant Discharging Elimination System)
Who issues a NPDES Permit? [ANS:] EPA
How many days prior to the expiration date must one file an
NPDES Permit? [ANS:] 180 days
How long is an NPDES Permit valid for? [ANS:] 5 years
Which term describes a small covered, pit lines with brick or stone
designed to allow leaching out? [ANS:] Cesspool
Which term describes break or cut up solids to such size that they
can be returned to the wastewater without danger of clogging
pumps or piping or affecting subsequent treatment devices? (two
words) [ANS:] Comminuting devices
, 2
For Expert help and assignment solutions, +254707240657
Which term includes grinders, cutters, or shredders? (2 words)
[ANS:] Comminuting devices
Describe the health and personal protective protective
requirements for wastewater treatment personnel [ANS:] -
Immunizations
- No hand to mouth contact while in direct source of
contamination
- PPE for spills
© 2025 Assignment Expert
4 purposes of wastewater treatment [ANS:] - Protect community,
- prevent contamination,
Guru01 - Stuvia
- maintain clean water,
- conserve water
Which term: Wastewater or other liquid partially or completely
treated or in its natural state flowing out of a reservoir, basin,
sewage treatment plant, industrial plant or marine sanitation
device [ANS:] Effluent
Which term: Human body wastes from toilets, urinals and soil
drains; also referred to as sewage [ANS:] Black Water
Which term: A motor driven grinder used to pulp sewage solids
before they enter the Marine Sanitation Device [ANS:]
Comminutor
Which term: Requires the use of discharge permits for all
wastewater producers [ANS:] NPDES
