WASTEWATER OPERATOR CLASS 1 2 PRACTICE TEST

PDF Download WASTEWATER OPERATOR CLASS 1 & 2 PRACTICE TEST Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -100 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: The nutrient requirements for biological stabilization of organic matter result in the following ratio for Carbon/Nitrogen/Phosphorus

Answer:

100/5/1

Question 2: What must be checked for when using a float type influent gage?

Answer:

Grease and/or rag buildup on the float Question 3: How much phosphorous does a person contribute to a wastewater system per day?

Answer:

0.0048 lbs

Question 4: What is the purpose of sleeves in a pump?

Answer:

To cover the shaft that supports the impeller to protect the shaft from the corrosive and abrasive effects of the liquid going through the pump

Question 5: The grit removal process is so important because of why?

Answer:

It protects downstream equip,emt

Question 6: What are the pH parameters outlined by KPDES in the process of wastewater treatment?

Answer:

6.0 - 9.0 ppm

Question 7: What is a composite sample?

Answer:

Equal volumes samples taken every 15 minutes over a 24 hour period and aggregated by an automated device.Question 8: How much chlorine is required to oxidize 1 ppm ammonia, assuming adequate pH.alkalinity, and temperature?

Answer:

9.0 Question 9: What characteristics make up an approved light source for use in a manhole?

Answer:

Explosion proof and reflective Question 10: One (1) pound of algae is capable of producing how many pounds of oxygen?

Answer:

1.6 pounds of O2

Question 11: What is the primary function of a brush aerator?

Answer:

To produce great dissolved oxygen (DO)

Question 12: Uses a strong oxidizer to break down organic material

Answer:

Chemically Oxidizable Carbon (COD) Question 13: Flow measurement system where flow stream contents are collected in container for fixed period of time

Answer:

Timed gravimetric

Question 14: What sort of system do lagoons/ponds form for the wastewater organix population?

Answer:

Aerobic, Anaerobic, Facultative Question 15: Fish such as salmon and trout cannon tolerate more than trace amounts of chlorine. therefore, a total residual chlorine monthly limits for zero flow streams are set at:

Answer:

0.01 mg/L

Question 16: What is the process for running the total suspended solids test?

Answer:

Weigh dry filter, filter sample, dry at 103° C for hour, place in desiccator 15 minutes, weigh Question 17: How should lantern rings be installed on the stuffing box as part of a pump unit?

Answer:

Completely filled with grease before all the rings of packing are in place.Question 18: There are three general types of grit chambers. In the horizontal channel, velocities are reduced to ______ fps so that the grit will settle while the organics remain in suspension.

Answer:

1-1.5

Question 19: Sludge blanket depths may be measured by using what instrument(s)

Answer:

Sludge judge, sludge light, and core taker

Question 20: Effluent disinfection is necessary in order to do what?

Answer:

Kill pathogenic bacteria Question 21: Heavy metals, Phenols & Toxins would be classified as what kind of pollutant?

Answer:

Non-conventional

Question 22: What is the recommended way of keeping weed growth down in ponds?

Answer:

Maintain a depth of at least 3 feet Question 23: At what point in the treatment process should a fecal sample be grabbed?

Answer:

At the last point of the treatment process

Question 24: What is the maximum holding time for pH measurement?

Answer:

Analyze immediately

Question 25: A KDPES permit establishes what?

Answer:

What can be discharged, discharge limits for each parameter, how much can be discharged, sampling frequency, and sample collection method for each discharge parameter Question 26: A white coating formed on the elements of a rotating biological contactor (RBC) is

an indication of:

Answer:

Septic conditions

Question 27: If you know your effluent you know what?

Answer:

Your influent. What goes in has to come out.Question 28: When visitors are touring your plant your greatest concern should be:

Answer:

Their safety Question 29: The organic loading rate in lbs soluble BOD/1000ft^2 in an RBC Is:

Answer:

<2.5