Water Treatment Exam Questions and
Answers 100% Pass
The greater the concentration of dissolved solids in an HVAC system's water, the
greater the potential for _______. - ANSWER-Corrosion
Dissolved gases that have almost no effect on water systems include _________. -
ANSWER-Nitrogen
Which of the following is caused by the presence of slime producing biologic
organisms in the water in an HVAC system? - ANSWER-Inadequate heat transfer
If blue litmus paper turns red when a water sample is tested, this indicates that the
pH of the the water is _________. - ANSWER-Below 7.0
Adding chemicals to a solution tank should occur in the following sequence
_______. - ANSWER-Water first, then chemicals
Which of the following is a mechanical filtration device used for maintaining water
quality? - ANSWER-Strainer
Backwashing is used to prevent accumulated particles from clogging a ________. -
ANSWER-Multimedia filter
©️COPYRIGHT 2025, ALL RIGHTS RESERVED. 1
Answers 100% Pass
The greater the concentration of dissolved solids in an HVAC system's water, the
greater the potential for _______. - ANSWER-Corrosion
Dissolved gases that have almost no effect on water systems include _________. -
ANSWER-Nitrogen
Which of the following is caused by the presence of slime producing biologic
organisms in the water in an HVAC system? - ANSWER-Inadequate heat transfer
If blue litmus paper turns red when a water sample is tested, this indicates that the
pH of the the water is _________. - ANSWER-Below 7.0
Adding chemicals to a solution tank should occur in the following sequence
_______. - ANSWER-Water first, then chemicals
Which of the following is a mechanical filtration device used for maintaining water
quality? - ANSWER-Strainer
Backwashing is used to prevent accumulated particles from clogging a ________. -
ANSWER-Multimedia filter
©️COPYRIGHT 2025, ALL RIGHTS RESERVED. 1
