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WASTEWATER OPERATOR GRADE 2 |ACTUAL QUESTIONS AND VERIFIED ANSWERS NEWEST UPDATE|GRADED A+

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WASTEWATER OPERATOR GRADE 2 |ACTUAL QUESTIONS AND VERIFIED ANSWERS NEWEST UPDATE|GRADED A+

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Question 1

General Wastewater Treatment:



What is the pressure head caused by?

CORRECT ANSWER

Water elevation




Question 2

General Wastewater Treatment:



What color should the piping be that contains reclaimed water?

CORRECT ANSWER

Purple




Question 3

General Wastewater Treatment:



What is the term for the height to which a column of water will rise in a well.

CORRECT ANSWER

Piezometric surface



1
@THE STUDY VAULT

,Question 4

General Wastewater Treatment:



In general, what is the maximum practical lift of pumps

CORRECT ANSWER

15-25ft




Question 5

General Wastewater Treatment:



Which one of the following valves is the best to use in throttling a flow situation?

A. Gate

B. Butterfly

C. Globe

D. Ball

CORRECT ANSWER

Globe




Question 6

General Wastewater Treatment:



Which one of the following devices is used to measure water depths in storage facilities?



A. Transducer


2
@THE STUDY VAULT

,B. Venturi meter

C. Magnetic sensor

D. Thermistor

CORRECT ANSWER

Transducer




Question 7

Wastewater Treatment Facilities:



The velocity in sanitary sewers is approximately:

CORRECT ANSWER

2 ft/s




Question 8

Wastewater Treatment Facilities:



The distance between manholes ranges from

CORRECT ANSWER

300-500ft




Question 9

Wastewater Treatment Facilities:



What should the flow velocity be through a grit channel


3
@THE STUDY VAULT

, CORRECT ANSWER

1.0 ft/s




Question 10

Wastewater Treatment Facilities:



Grit washers are used to______



A. Remove some of the organic matter

B. Remove large pieces of wood

C. Remove rags and eggshells

D. Remove the odors

CORRECT ANSWER

Remove some of the organic matter




Question 11

Wastewater Treatment Facilities:



The most common flow-measure device for wastewater is a_____

CORRECT ANSWER

Parshall flume




Question 12

Wastewater Treatment Facilities:


4
@THE STUDY VAULT

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