TCEQ WASTEWATER (CLASS D)
LICENSE PREP WITH CORRECT
SOLUTIONS
Minimum velocity required to keep solids in suspension? - ANSWER-2ft/sec
Minimum required velocity a inverted siphon requires? - ANSWER-3ft/sec
Two most common pipe materials used in the collection system? - ANSWER-Clay &
PVC
OSHA minimum standards for shoring, sloping, or trench boxes are? - ANSWER-5ft or
deeper
If the trench is _____ or deeper, use a portable ladder or other means of exit. -
ANSWER-4ft or deeper
The ladder most extend ____ feet above the trench and be secured. - ANSWER-3ft
Ladders must be within ____ feet of trench workers and not more than ____ feet apart. -
ANSWER-25ft, 50ft
The excavation spoil must be at least? - ANSWER-2ft from the edge of the trench
Which type of pump is most often used in a lift station? - ANSWER-Centrifugal Pump
What is CMOM? - ANSWER-Capacity, management, operations, and maintenance
Install water lines no closer to a water line than ____ feet - ANSWER-9ft
Chlorine helps ______ grease, making it easy to skim - ANSWER-Congeal
The magnetic meter works by the law of ________ - ANSWER-Induction
Microorganisms including bacteria, protozoa, fungi, and microscopic animals, feed on
the organic waste and can remove_________% of the BOD from wastewater -
ANSWER-92-99%
A return sludge pumping system must be capable of pumping at least ______ gpd/sf but
not more than______ gpd/sf - ANSWER-200gpd/sf, 400gpd/sf
How often do you calibrate flow measuring devices? - ANSWER-Annually
LICENSE PREP WITH CORRECT
SOLUTIONS
Minimum velocity required to keep solids in suspension? - ANSWER-2ft/sec
Minimum required velocity a inverted siphon requires? - ANSWER-3ft/sec
Two most common pipe materials used in the collection system? - ANSWER-Clay &
PVC
OSHA minimum standards for shoring, sloping, or trench boxes are? - ANSWER-5ft or
deeper
If the trench is _____ or deeper, use a portable ladder or other means of exit. -
ANSWER-4ft or deeper
The ladder most extend ____ feet above the trench and be secured. - ANSWER-3ft
Ladders must be within ____ feet of trench workers and not more than ____ feet apart. -
ANSWER-25ft, 50ft
The excavation spoil must be at least? - ANSWER-2ft from the edge of the trench
Which type of pump is most often used in a lift station? - ANSWER-Centrifugal Pump
What is CMOM? - ANSWER-Capacity, management, operations, and maintenance
Install water lines no closer to a water line than ____ feet - ANSWER-9ft
Chlorine helps ______ grease, making it easy to skim - ANSWER-Congeal
The magnetic meter works by the law of ________ - ANSWER-Induction
Microorganisms including bacteria, protozoa, fungi, and microscopic animals, feed on
the organic waste and can remove_________% of the BOD from wastewater -
ANSWER-92-99%
A return sludge pumping system must be capable of pumping at least ______ gpd/sf but
not more than______ gpd/sf - ANSWER-200gpd/sf, 400gpd/sf
How often do you calibrate flow measuring devices? - ANSWER-Annually
