1 of 72
Term
the lead and copper rule 90th percentile action levels are
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0.02mg/l for pb and 1.0mg/l for cu 0.01mg/l for pb and 1.5mg/l for cu
0.015mg/l for pb and 1.3mg/l
0.05mg/l for pb and 2.0mg/l for cu
for cu
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, 2 of 72
Term
the term pws stands for
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public well sample private water system
public water system private water plant
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3 of 72
Term
which of the following is a correct statement about chlorine gas
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chlorine gas is odorless chlorine gas is heavier than air
chlorine gas is non-toxic chlorine gas is lighter than air
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4 of 72
,Term
a valve in which the closing element is a disc that slides across the
pipe opening
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angle valve globe valve
gate valve ball valve
Don't know?
5 of 72
Term
what is the SMCL of the fluoride contaminant
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organic, 2.5mg/l inorganic, 2.0mg/l
organic, 1.5mg/l inorganic, 3.0mg/l
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, 6 of 72
Term
What is the chlorine dose
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Chlorine residual minus chlorine Chlorine demand plus chlorine
demand stability
Chlorine dose divided by chlorine Chlorine demand plus
residual chlorine residual
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7 of 72
Term
what are two most important safety concerns when entering an
confined space
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oxygen deficiency and electrical hazards and structural
hazardous gasses instability
temperature extremes and radiation
chemical spills and noise pollution
exposure
Term
the lead and copper rule 90th percentile action levels are
Give this one a try later!
0.02mg/l for pb and 1.0mg/l for cu 0.01mg/l for pb and 1.5mg/l for cu
0.015mg/l for pb and 1.3mg/l
0.05mg/l for pb and 2.0mg/l for cu
for cu
Don't know?
, 2 of 72
Term
the term pws stands for
Give this one a try later!
public well sample private water system
public water system private water plant
Don't know?
3 of 72
Term
which of the following is a correct statement about chlorine gas
Give this one a try later!
chlorine gas is odorless chlorine gas is heavier than air
chlorine gas is non-toxic chlorine gas is lighter than air
Don't know?
4 of 72
,Term
a valve in which the closing element is a disc that slides across the
pipe opening
Give this one a try later!
angle valve globe valve
gate valve ball valve
Don't know?
5 of 72
Term
what is the SMCL of the fluoride contaminant
Give this one a try later!
organic, 2.5mg/l inorganic, 2.0mg/l
organic, 1.5mg/l inorganic, 3.0mg/l
Don't know?
, 6 of 72
Term
What is the chlorine dose
Give this one a try later!
Chlorine residual minus chlorine Chlorine demand plus chlorine
demand stability
Chlorine dose divided by chlorine Chlorine demand plus
residual chlorine residual
Don't know?
7 of 72
Term
what are two most important safety concerns when entering an
confined space
Give this one a try later!
oxygen deficiency and electrical hazards and structural
hazardous gasses instability
temperature extremes and radiation
chemical spills and noise pollution
exposure
