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TCEQ Wastewater (Class D) License Prep with Questions & Answers.
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TCEQ Wastewater (Class D) License Prep with Questions & Answers.
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TCEQ Wastewater (Class D) License Prep withQuestions & Answers
Minimum velocity required to keep solids in suspension? - (correct answer) -2ft/sec
yi yi yi yi yi yi yi yi yi yi yi
Minimum required velocity a inverted siphon requires? - (correct answer) -3ft/sec
yi yi yi yi yi yi yi yi yi yi
Two most common pipe materials used in the collection system? - (correct answer) -Clay & PVC
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
OSHA minimum standards for shoring, sloping, or trench boxes are? - (correct answer) -5ft or deeper
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
If the trench is _____ or deeper, use a portable ladder or other means of exit. - (correct answer) -4ft or
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
deeper
yi
The ladder most extend ____ feet above the trench and be secured. - (correct answer) -3ft
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
Ladders must be within ____ feet of trench workers and not more than ____ feet apart. - (correct
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
answer) -25ft, 50ft
yi yi yi
The excavation spoil must be at least? - (correct answer) -2ft from the edge of the trench
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
Which type of pump is most often used in a lift station? - (correct answer) -Centrifugal Pump
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
What is CMOM? - (correct answer) -Capacity, management, operations, and maintenance
yi yi yi yi yi yi yi yi yi yi
Install water lines no closer to a water line than ____ feet - (correct answer) -9ft
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
Chlorine helps ______ grease, making it easy to skim - (correct answer) -Congeal
yi yi yi yi yi yi yi yi yi yi yi yi
The magnetic meter works by the law of ________ - (correct answer) -Induction
yi yi yi yi yi yi yi yi yi yi yi yi
How often do you calibrate flow measuring devices? - (correct answer) -Annually
yi yi yi yi yi yi yi yi yi yi yi
Primary clarifiers should remove _____ percent of the incoming BOD - (correct answer) -35%
yi yi yi yi yi yi yi yi yi yi yi yi yi
Primary sludge is about ________% water and _______% solids - (correct answer) -94-96% water, and 4-
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
6% solids yi
Primary clarifiers should remove ____ % of the BOD and _____% of the settleable solids - (correct
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
answer) -35%, 90-95%
yi yi yi
Usual blanket depth in a secondary clarifier is no more than ____ of the sidewall depth - (correct
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
answer) -1/4
yi yi
When sludge is within _____ inches of the slot, withdraw sludge - (correct answer) -18 inches
yi yi yi yi yi yi yi yi yi yi yi yi yi yi yi
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