The most accurate chlorine residual measurement would be taken with?
A. DPD
B. pH meter
C. Jar Test
D. Amperometric Titration
D
What is the rule that sets MCL's for harmful chemicals?
A. Disinfection By Product Rule
B. Safe Drinking Water Act
C. Surface Treatment Water Rule
D. O'doyle Rules
A
,Reservoir turnover events cause by temperature changes reduce what at deeper water
levels?
A. Cl2
B. O2
C. TDS
D. Flocculation
B
,The IDLH (immediately dangerous to life and health) value for chlorine is?
A. 5 ppm
B. 10 ppm
C. 15 ppm
D. 25 ppm
B
What is the usual detention time required to produce optimal floc aggregation?
A. 30 seconds
B. 30 min
C. 30 hours
D. 30 days
B
, If dry alum and quicklime are mixed together, what will happen?
A. Dust will be created
B. Highly explosive hydrogen gas will be released
C. A gel with form
D. None of the above
B
As the level of phosphates increase in a new water supply, an operator should?
A. Increase chlorine dosage and check the pH
B. Check the Hazen Williams Levels
C. Increase the coagulant dosage and check for algae growth
D. Shut the plant down immediately and check all filters
C
A. DPD
B. pH meter
C. Jar Test
D. Amperometric Titration
D
What is the rule that sets MCL's for harmful chemicals?
A. Disinfection By Product Rule
B. Safe Drinking Water Act
C. Surface Treatment Water Rule
D. O'doyle Rules
A
,Reservoir turnover events cause by temperature changes reduce what at deeper water
levels?
A. Cl2
B. O2
C. TDS
D. Flocculation
B
,The IDLH (immediately dangerous to life and health) value for chlorine is?
A. 5 ppm
B. 10 ppm
C. 15 ppm
D. 25 ppm
B
What is the usual detention time required to produce optimal floc aggregation?
A. 30 seconds
B. 30 min
C. 30 hours
D. 30 days
B
, If dry alum and quicklime are mixed together, what will happen?
A. Dust will be created
B. Highly explosive hydrogen gas will be released
C. A gel with form
D. None of the above
B
As the level of phosphates increase in a new water supply, an operator should?
A. Increase chlorine dosage and check the pH
B. Check the Hazen Williams Levels
C. Increase the coagulant dosage and check for algae growth
D. Shut the plant down immediately and check all filters
C
