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2024 DRINKING WATER TREATMENT OPERATOR CLASS 1 EXAM WITH CORRECT ANSWERS 

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2024 DRINKING WATER TREATMENT OPERATOR CLASS 1 EXAM WITH CORRECT ANSWERS 

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  • September 9, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • DRINKING WATER TREATMENT OPERATOR CLASS 1
  • DRINKING WATER TREATMENT OPERATOR CLASS 1
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Elitaa
2024 DRINKING WATER
TREATMENT OPERATOR CLASS 1
EXAM WITH CORRECT ANSWERS



If a customer complains about the drinking water characteristics, the
operator should record the complaint and... - CORRECT-ANSWERSInvestigate
immediately

Chemical reactions take place more rapidly in _______ water. - CORRECT-
ANSWERSWarmer

The uptake of water or dissolved chemicals by a cell or organism. -
CORRECT-ANSWERSAbsorption

The process of adding air to water. - CORRECT-ANSWERSAeration

Chemicals that cause very fine particles to clump together into larger
particles. - CORRECT-ANSWERSCoagulants

The gathering of fine particles in water by gentle mixing after the addition of
coagulant chemicals to form larger particles. - CORRECT-
ANSWERSFlocculation

A water treatment process in which solid particles settle out of the water
being treated in a large clarifier or sedimentation basin. - CORRECT-
ANSWERSSedimentation

lime - CORRECT-ANSWERSA chemical commonly used to raise pH is...

manganese - CORRECT-ANSWERSBlack stains on plumbing fixtures might be
attributed to...

1000 grams - CORRECT-ANSWERSone kilogram equals...

The indicator organisms used to determine contamination of drinking water -
CORRECT-ANSWERSColiform group

Fe - CORRECT-ANSWERSChemical symbol for iron

, 2.31 - CORRECT-ANSWERSOne pound per square inch of pressure will raise
water_______ ft.

pressure due to depth or elevation of the water - CORRECT-ANSWERSStatic
Head is defined as...

10% solution of ammonia hydroxide - CORRECT-ANSWERSWhat is used to
detect chlorine leaks?

.433 psi - CORRECT-ANSWERS1 ft=

denser than air. - CORRECT-ANSWERSChlorine gas is...

calcium scale - CORRECT-ANSWERSPolyphosphates may be used in the
water treatment to retard corrosion and...

powder - CORRECT-ANSWERSCalcium hypochlorite is formulated as a

after a pipe is laid in place - CORRECT-ANSWERSA water main should be
disinfected..

lower pH. - CORRECT-ANSWERSCarbon Dioxide in water will..

feet per second - CORRECT-ANSWERSVelocity is expressed in terms of...

acid - CORRECT-ANSWERSA pH reading of 6.0 in raw water indicates the
sample is...

0-14 - CORRECT-ANSWERSThe pH scale runs from...

neutral - CORRECT-ANSWERSA pH value of 7.0 is considered to be..

moisture - CORRECT-ANSWERSChlorine is very corrosive when combined
with...

ammonia - CORRECT-ANSWERSChloramines are formed by the addition of
chlorine and...

meter the flow of fluid - CORRECT-ANSWERSThe purpose of a rotameter is to

Na - CORRECT-ANSWERSChemical symbol for sodium is...

pounds per square inch - CORRECT-ANSWERSPressure is usually measured in
...

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