Matching questions
1-74 of 74
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A. Altitude valve
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Which is the correct type of valve for controlling the level of a treated
water storage reservoir below the level of the hydraulic grade
A. Altitude valve
B. Check Valve
C. Pressure relief valve
D. Reduced pressure backflow valve
D. When Chlorine dosage is increased, a corresponding increase
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, When is breakpoint chlorination achieved ?
A. Free ammonia can be tasted in the water
B. No chlorine residual is detected
C. Strong chlorine taste at the plant does not persist in the distribution
system
D. When Chlorine dosage is increased, a corresponding increase
A. That a drain is fully closed
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Dry barrel hydrants should be fully opened to ensure
A. That a drain is fully closed
B. That the operating valve is fully opened
C. That the operating mechanisms is fully functional
D. it is not necessary that a dry-barrel hydrants are fully opened
B. Make the water more acidic (more corrosiveness)
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The addition of chlorine gas to water tends to
A. Be of no influence on corrosiveness of water
B. Make the water more acidic (more corrosiveness)
C. Make the water less acidic (less corrosive)
D. Prevent pipeline corrosion
C. Document complaint investigations
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, What is the best reason an operator should keep records of complaints
A. Identify future pressure zone problems
B. Evaluate plant performance
C. Document complaint investigations
D. Comply with government regulations
C. Globe
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A. Pressure regulating valve is usually which design.
A. Rotary
B. Slide
C. Globe
D. Gate
A. 0.3 mg/L
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What is the lowest concentration of iron in water which will cause staining ?
A. 0.3 mg/L
B. 1.9 mg/l
C. 3.0 mg/L
D. 4.0 mg/L
C. Flapper valve
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1-74 of 74
Click a term to match it with a definition
A. Altitude valve
Give this one a try later!
Which is the correct type of valve for controlling the level of a treated
water storage reservoir below the level of the hydraulic grade
A. Altitude valve
B. Check Valve
C. Pressure relief valve
D. Reduced pressure backflow valve
D. When Chlorine dosage is increased, a corresponding increase
Give this one a try later!
, When is breakpoint chlorination achieved ?
A. Free ammonia can be tasted in the water
B. No chlorine residual is detected
C. Strong chlorine taste at the plant does not persist in the distribution
system
D. When Chlorine dosage is increased, a corresponding increase
A. That a drain is fully closed
Give this one a try later!
Dry barrel hydrants should be fully opened to ensure
A. That a drain is fully closed
B. That the operating valve is fully opened
C. That the operating mechanisms is fully functional
D. it is not necessary that a dry-barrel hydrants are fully opened
B. Make the water more acidic (more corrosiveness)
Give this one a try later!
The addition of chlorine gas to water tends to
A. Be of no influence on corrosiveness of water
B. Make the water more acidic (more corrosiveness)
C. Make the water less acidic (less corrosive)
D. Prevent pipeline corrosion
C. Document complaint investigations
Give this one a try later!
, What is the best reason an operator should keep records of complaints
A. Identify future pressure zone problems
B. Evaluate plant performance
C. Document complaint investigations
D. Comply with government regulations
C. Globe
Give this one a try later!
A. Pressure regulating valve is usually which design.
A. Rotary
B. Slide
C. Globe
D. Gate
A. 0.3 mg/L
Give this one a try later!
What is the lowest concentration of iron in water which will cause staining ?
A. 0.3 mg/L
B. 1.9 mg/l
C. 3.0 mg/L
D. 4.0 mg/L
C. Flapper valve
Give this one a try later!
