1|Page
New Jersey Water Treatment Operator Exam T4
Questions with Correct Verified Answers and
explanations LATEST THIS YEAR -JUST
RELEASED.pdf 1||NEWEST EXAM!!!
If fluoride is fed ahead of filtration what can occur?
a.) Some fluoride loss
b.) Problems with disinfection
c.) Increases in fluoride concentration
d.) Formation of precipitate - Answer-A
Which of the following emergency leak repair kits should
be on hand for ton cylinders?
a.) Emergency Kit A
b.) Emergency Kit B
c.) Emergency Kit C
d.) Emergency Kit D - Answer-B
What will iron that remains in the ferrous state do?
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a.) Be removed by filters
b.) Pass through the filters
c.) Precipitate in the reaction tank
d.) Settle out - Answer-B
Short circuiting in the flocculation process can be
corrected by
a.) Adjusting the pH
b.) Decreasing the flows
c.) Increasing coagulant dosages
d.) Providing several compartments in series - Answer-D
What removes organic substances from depleted
activated carbon?
a.) Degasification
b.) Recarbonation
c.) Reduction
d.) Reactivation - Answer-D
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What is the purpose of an anti-siphon valve on a fluoride
metering pump?
a.) The same as that of the overflow connection on the
supply
b.) To prevent fluoridated water from being siphoned into
the feed equipment
c.) To prevent potential overfeed of fluoride
d.) The same as that of a vacuum breaker on the potable
makeup water line - Answer-B
A perfectly uniform sand would have a uniformity
coefficient of
a.) 0
b.) 1
c.) 1.5
d.) 1.7 - Answer-C
When handling any dry fluoride compound one important
safety precaution that should be observed is to
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a.) Have another operator near by
b.) Keep all windows closed to prevent the escape of
dangerous dusts into the environment
c.) Keep skin contact with fluoride dusts to a minimum
d.) Use only explosion proof fixtures - Answer-C
What calcium carbonate condition should be maintained
for a good calcium carbonate coating in piping?
a.) Undersaturated
b.) Just saturated
c.) Oversaturated
d.) That which is indicated by the corrosion indices -
Answer-B
In a pumping station where two complete pumping units
are provided, how much should a pump be capable of
delivering?
a.) Average Flow
b.) Maximum Flow
New Jersey Water Treatment Operator Exam T4
Questions with Correct Verified Answers and
explanations LATEST THIS YEAR -JUST
RELEASED.pdf 1||NEWEST EXAM!!!
If fluoride is fed ahead of filtration what can occur?
a.) Some fluoride loss
b.) Problems with disinfection
c.) Increases in fluoride concentration
d.) Formation of precipitate - Answer-A
Which of the following emergency leak repair kits should
be on hand for ton cylinders?
a.) Emergency Kit A
b.) Emergency Kit B
c.) Emergency Kit C
d.) Emergency Kit D - Answer-B
What will iron that remains in the ferrous state do?
,2|Page
a.) Be removed by filters
b.) Pass through the filters
c.) Precipitate in the reaction tank
d.) Settle out - Answer-B
Short circuiting in the flocculation process can be
corrected by
a.) Adjusting the pH
b.) Decreasing the flows
c.) Increasing coagulant dosages
d.) Providing several compartments in series - Answer-D
What removes organic substances from depleted
activated carbon?
a.) Degasification
b.) Recarbonation
c.) Reduction
d.) Reactivation - Answer-D
,3|Page
What is the purpose of an anti-siphon valve on a fluoride
metering pump?
a.) The same as that of the overflow connection on the
supply
b.) To prevent fluoridated water from being siphoned into
the feed equipment
c.) To prevent potential overfeed of fluoride
d.) The same as that of a vacuum breaker on the potable
makeup water line - Answer-B
A perfectly uniform sand would have a uniformity
coefficient of
a.) 0
b.) 1
c.) 1.5
d.) 1.7 - Answer-C
When handling any dry fluoride compound one important
safety precaution that should be observed is to
, 4|Page
a.) Have another operator near by
b.) Keep all windows closed to prevent the escape of
dangerous dusts into the environment
c.) Keep skin contact with fluoride dusts to a minimum
d.) Use only explosion proof fixtures - Answer-C
What calcium carbonate condition should be maintained
for a good calcium carbonate coating in piping?
a.) Undersaturated
b.) Just saturated
c.) Oversaturated
d.) That which is indicated by the corrosion indices -
Answer-B
In a pumping station where two complete pumping units
are provided, how much should a pump be capable of
delivering?
a.) Average Flow
b.) Maximum Flow
