CLASS D WASTEWATER TEST EXAM
WITH COMPLETE SOLUTIONS
Operator treatment goals are defined by the limits and conditions in waste discharge -
ANSPermits
According to TCEQ design criteria for domestic wastewater system (30 Texas
administrative code chapter 217) wastewater collection lines should not be installed any
closer than (9) feet from an (blank) line -ANSWater
Screenings from a treatment plant should be -ANSBuried in a permitted sanitary landfill
(Blank) is considered to be preliminary treatment -ANSGrit removal
Settling of solids occurs more rapidly in -ANSWarm wastewater
Climate related conditions which affect stabilization pond operations include -ANSBoth
B and C / Temperature and Prevailing Winds
Treatment processes in facultative pond are -ANSBoth aerobic and anaerobic
The purpose of a wastewater treatment pond is to stabilize organic materials in sewage
by natural process -ANSTrue
Fixed film treatment processes include -ANSBoth C and D Trickling Filter and RBC
Trickling filters are treatment plant units that are used in tertiery treatment -ANSRemove
organics by using bacterial slime
The part of trickling filter which furnishes a large surface area upon which a zoogleal
mass develops is called the -ANSMedia
Process control of an activated sludge wastewater treatment plant includes -ANSB and
C only / Proper sludge wasting and Using information from samples, test, and records to
adjust the treatment process.
Aerobically digested sludge will -ANSBe a brownish color
A process used to stabilize the bio solids (sludge) removed during wastewater treatment
is known as -ANSDigestion
WITH COMPLETE SOLUTIONS
Operator treatment goals are defined by the limits and conditions in waste discharge -
ANSPermits
According to TCEQ design criteria for domestic wastewater system (30 Texas
administrative code chapter 217) wastewater collection lines should not be installed any
closer than (9) feet from an (blank) line -ANSWater
Screenings from a treatment plant should be -ANSBuried in a permitted sanitary landfill
(Blank) is considered to be preliminary treatment -ANSGrit removal
Settling of solids occurs more rapidly in -ANSWarm wastewater
Climate related conditions which affect stabilization pond operations include -ANSBoth
B and C / Temperature and Prevailing Winds
Treatment processes in facultative pond are -ANSBoth aerobic and anaerobic
The purpose of a wastewater treatment pond is to stabilize organic materials in sewage
by natural process -ANSTrue
Fixed film treatment processes include -ANSBoth C and D Trickling Filter and RBC
Trickling filters are treatment plant units that are used in tertiery treatment -ANSRemove
organics by using bacterial slime
The part of trickling filter which furnishes a large surface area upon which a zoogleal
mass develops is called the -ANSMedia
Process control of an activated sludge wastewater treatment plant includes -ANSB and
C only / Proper sludge wasting and Using information from samples, test, and records to
adjust the treatment process.
Aerobically digested sludge will -ANSBe a brownish color
A process used to stabilize the bio solids (sludge) removed during wastewater treatment
is known as -ANSDigestion
