with 100% Correct Verified Answers Grade
A+ (Latest 2025-2026 Update)
MGD --- correct answer ---million gallons per day
min --- correct answer ---minute
MIS --- correct answer ---Manufacturing Information System
mL --- correct answer ---milliliter
MLSS --- correct answer ---mixed liquor suspended solids
MLVSS --- correct answer ---mixed liquor volatile suspended
solids
MMI --- correct answer ---Man Machine Interface
MOP --- correct answer ---Manual of Practice
,MPN --- correct answer ---most probable number
MS --- correct answer ---mass spectrometer
MSDS --- correct answer ---Material Safety Data Sheets
MTBF --- correct answer ---mean time between failures
MTTR --- correct answer ---mean time to repair
N --- correct answer ---normal
NEC --- correct answer ---National Electrical Code
NEMA --- correct answer ---National Electrical Manufacturers
Association
NEPA --- correct answer ---National Environmental Policy Act
, NM --- correct answer ---Normal Mode
NOCA --- correct answer ---National Organization for Competency
Assurance
NOD --- correct answer ---nitrogenous oxygen demand
NPDES --- correct answer ---National Pollutant Discharge Elimination
System
NPSH --- correct answer ---net positive suction head
NTU --- correct answer ---nephelometric turbidity unit(s)
O&M --- correct answer ---operation and maintenance
OCT --- correct answer ---Operator Certification Test (State of
California)
OMR --- correct answer ---operations, maintenance, and