WGU

When organic wastes are discharged to receiving waters, O2 is depleted by _____. bacteria Hydrogen sulfide gives off an odor similar to____. rotten eggs 3 diseases potentially carried by wastewater are _____. typhoid fever, disentery, cholera Immediate first aid for butrns is to ____. flood with cold water What most likely causes an electic motor failure? mopisture What mixed liquor characteristics indicate a healthy activated sludge process? brown color, frothy appearance, and musty odor ...

When organic wastes are discharged to receiving waters, O2 is depleted by _____. bacteria Hydrogen sulfide gives off an odor similar to____. rotten eggs 3 diseases potentially carried by wastewater are _____. typhoid fever, disentery, cholera Immediate first aid for butrns is to ____. flood with cold water What most likely causes an electic motor failure? mopisture What mixed liquor characteristics indicate a healthy activated sludge process? brown color, frothy appearance, and musty odor ...

The first step the maintenance staff should take in properly locking and tagging out a piece of equipment is to... a) alert the operator on duty b) turn the equipment off at the motor control center (MCC) c) pull the switch on the electrical panel to "OFF" d) fill out the tags a) alert the operator on duty Always alert the operator on duty before shutting down any equipment so as to prevent the possibility of harming personnel or affecting process performance as a result of the shutdown. ...

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% 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 bacteria in the activated sludge process C) The MLVSS in the aeration tank D) The food for the microorganisms flowing into the aeration tank, in lbs/day D) The food for the microorganisms flowing into the aeration tank, i...

What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately increase pH B) pH will not be affected C) Significantly increase the pH D) Decrease the pH D) Decrease the pH (v.1 pg 349-350) What is the purpose of a Parshall flume?

WWTP Wastewater Treatment Plant A community or municipal facility designed according to state and federal regulations and permitted for the purposes of purifying soiled water or wastewater which is the water and solids from a community including residential, commercial and often industrial entities. In the United States, WWTPs are closely regulated to preserve and protect public health by the US EPA and state primacy. wastewater The spent or used water of a community or industry containing...

What are the two important factors impacting the effectiveness of chlorination? Concentration of chlorine and contact time The treatment process that controls corrosion or scaling is known as what? Stabilization Permanganate reactions are highly dependent on what factor? pH It is hardest to kill the organism that causes what illness? Cryptosporidiosis Disinfection of water wells with free chlorine requires exposure for how long and at what concentration? 12 to 24 hours; 50mg/L Flocculatio...

The power to make law and to frame public policies legislative power the power to execute, enforce, and administer law executive power the power to interpret laws, to determine their meaning, and to settle disputes that arise within the society judical power What are the common features of the first state constitutions? popular sovereignty (govt. can only exist with the consent of the governed), limited government, civil rights and liberties, and seperation of powers and checks and balance...

According to Article I, Section 2 of the Constitution, each representative must have reached a minimum age of 25 years old. On whose behalf do most lobbyists work? Select all that apply. political action committees (PACs) businesses interest groups unions In a confederal system of government, power is distributed equally among the state governments. A trial court in the federal system is the US Court of Claims. A state court that sets a precedent makes a decision that can authorize sim...

Local organizations are organized by precincts, counties, and wards The lawmaking responsibility of the members of the House is to propose, amend, and vote on bills and resolutions. In a trial, who hears evidence and offers a verdict? juries To become a citizen of the United States, a person must have been born or naturalized in the United States. What is a landmark case? a case that sets a precedent for future court decisions Which of these is a negative impact of lobbying? It offers adv...