Texas Commission on Environmental Quality (TCEQ) Wastewater Tests Bundle Set

The molecular formula for water is ______. CORRECT ANSWER-H2O. Water occurs in three forms; solid ice, liquid water, and water vapor. CORRECT ANSWER-True The ______ cycle is the natural exchange of water between the earth and the atmosphere. CORRECT ANSWER-hydrologic Average water use depen...

Basic water works operations exam questions with correct answers

Seeding of BOD samples is necessary when samples CORRECT ANSWER-(All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system...

What is TCEQ doing to control "point source" pollution of the Texas waterways? CORRECT ANSWER-*Permitting of domestic wastewater plants *Permitting of industrial wastewater plants Describe proper design of force main wastewater lines. CORRECT ANSWER-Minimum two fps velocity with the smallest p...

Texas Health and Safety Code is in CORRECT ANSWER-Title 5 Chapter 341 (TAC) The requirement to perform a CSI is based on a law found in CORRECT ANSWER-Texas Health and Safety Code Individuals who can perform a CSI CORRECT ANSWER-- Plumbing Inspectors licensed by the Texas State Board of Plumbi...

Ammonia mixed with chlorine gas creates a CORRECT ANSWER-white smoke The most difficult part of a water distribution operator's job. CORRECT ANSWER-furnish a continuous supply Physical connection between a safe and potentially unsafe water source. CORRECT ANSWER-cross connection A distribu...

Operators have a responsibility to provide drinking water that meets federal and state standards. (true/false) CORRECT ANSWER-true Water must be disinfected, delivered at inadequate pressure, and be ample in quantity. (true/false) CORRECT ANSWER-false (adequate pressure) Utility employees sho...

The Wastewater Treatment B Test Questions with correct answers

State Agency responsince for enforcing the safe drinking water act in Texas CORRECT ANSWER Texas Commission on environmental Quality What minerals can cause water hardness CORRECT ANSWER Calcium and magnesium A public water system must at all times provide CORRECT ANSWER Adequate quantity of w...

The name of the State Agency responsible for enforcing pollution control laws in Texas CORRECT ANSWER Texas Commission of Environmental Quality The term pathogenic means CORRECT ANSWER Capable of causing disease The minimum separation between sewer lines and potable water lines is CORRECT ANSW...

If wastewater contains dissolved oxygen, the biological breakdown will reduce sulfate to sulfide. T or F CORRECT ANSWER False At a pH below 5, all sulfide is present in the gaseous h2s form and most of it can be released from wastewater. T or F CORRECT ANSWER True In order to control odors e...

Percent of volatile solids normally in sludge CORRECT ANSWER 70-80% D.O. levels in a primary clarifier CORRECT ANSWER 0.5-1.0 MG/L Why are precautionary measures needed around an aeration basin? CORRECT ANSWER undertow and turbulence O.S.H.A. approved trench CORRECT ANSWER narrow excavation...

Primary Clarifiers CORRECT ANSWER In an activated sludge treatment system, primary treatment processes include the: Removal of Inorganic material from grit CORRECT ANSWER In a washing grit remover, the grit is moved slowly by screw conveyors up an inclined channel in order to? 90% or above COR...

3 Amigos CORRECT ANSWER F/M, SVI, Current WAS rate 3 M's CORRECT ANSWER MLSS, MLVSS, MCRT High Sludge Age =_________ MCRT CORRECT ANSWER High MCRT High Sludge Age=_______ MLSS CORRECT ANSWER High MLSS Older Sludge F/M ratio CORRECT ANSWER =< 0.1 lbs/day CBOD : 1lb MLVSS Young ...

The first step in maintenance staff should take in properly locking and tagging out a piece of equipment is to CORRECT ANSWER alert the operator on duty When working in an area with two or more floor coverings, be sure that they are always CORRECT ANSWER Secured together When manually lifting ...

what is the reason for Wastewater to contain large amounts of sand gravel and grit CORRECT ANSWER storm events combined Wastewater is defined as CORRECT ANSWER sanitary Wastewater and stormwater runoff in general the solid content of Wastewater is about CORRECT ANSWER .1% what is the percen...

Odors occur when treatment becomes CORRECT ANSWER Anaerobic What should an operator do before entering a manhole CORRECT ANSWER Test for all hazardous gases and oxygen levels and ventilate the manhole before entering What treatment devices is commonly used to separate and remove large solids f...

Wastewater Practice Test (Florida) questions with correct answers

What is the odor detection limit of chlorine gas? CORRECT ANSWER 0.3 ppm What is a cathode? CORRECT ANSWER negative pole of an electrolytic cell or system The least reactive metals are called CORRECT ANSWER cathodic metals Unless water cooled, the operating temperature of a mechanical seal ...

WasteWater Sources & Characteristics: What is the most common reason for a wastewater to contain intermittent large amounts of sand, gravel, and grit? CORRECT ANSWER storm events WasteWater Sources & Characteristics: Combined wastewater is defined as CORRECT ANSWER sanitary wastewater and s...

What is the typical BOD removal efficiency in a primary clarifier? A) 10 to 15% B) 40 to 60% C) 20 to 50% D) 95 to 99% CORRECT ANSWER C) 20 to 50% (v.1 pg 129) What does the "F" in F/M ratio represent? A) The microorganism population in the aeration tank B) The amount of filamentous b...

When organic wastes are discharged to receiving waters, O2 is depleted by _____. CORRECT ANSWER bacteria Hydrogen sulfide gives off an odor similar to____. CORRECT ANSWER rotten eggs 3 diseases potentially carried by wastewater are _____. CORRECT ANSWER typhoid fever, disentery, cholera Imm...

General Wastewater Treatment: What is the pressure head caused by? CORRECT ANSWER Water elevation General Wastewater Treatment: What color should the piping be that contains reclaimed water? CORRECT ANSWER purple General Wastewater Treatment: What is the term for the height to which a...

What is the predominant organism in a healthy activated sludge treatment plant? A. Stalked ciliates B. rotifers C. nematodes D. amoebas CORRECT ANSWER A. Stalked Ciliates A composite sample must be? A. sporadically collected in the treatment plant B. taken at one time C. analyzed immed...

Wastewater force main pressure rating is. A. 75 B. 100 C. 125 D. 150 E. 200 correct answer d. 150 The most critical factors of the final grade of a gravity wastewater pipe should be? A. Alignment B. Choice of pipe materials C. Choice of leveling equipment D. Choice of excavating eq...