TCEQ Water License D – Questions & Accurate
Solutions
Fecal Coliform Right Ans - _____ ______ found in drinking water indicates the
water is contaminated with potentially pathogenic organisms that may be
harmful
Hepatitis, typhoid, cholera, and dysentery are all waterborne diseases that are
preventable with proper disinfection. Right Ans - Hepatitis, typhoid, ______,
and _________ are all waterborne diseases that are preventable with proper
disinfection.
Calcium Hypochlorite is a solid form of chlorine that is used by some small
water systems to maintain a chlorine residual. Right Ans - ______ ______ is a
solid form of chlorine that is used by some small water systems to maintain a
chlorine residual.
The chlorine demand represents the amount of chlorine used by reducing
agents and other impurities before a chlorine residual is formed. Right Ans
- The chlorine _______ represents the amount of chlorine used by reducing
agents and other impurities before a chlorine residual is formed.
Disinfection is commonly referred to as the most important water treatment
process. Right Ans - __________ is commonly referred to as the most
important water treatment process.
The main component of a hypo-chlorination system is a solution feed pump.
Right Ans - The main component of a hypo-chlorination system is a ________
________ pump.
Components of a chlorine gas feed system include a steel chlorine cylinder,
scale and rotameter. Right Ans - Components of a chlorine gas feed system
include a steel chlorine cylinder, ______, and ________.
Under non-emergency conditions, the chlorine residual for disinfecting new
or repaired water main is ___ mg/L. Right Ans - Under non-emergency
conditions, the chlorine residual for disinfecting new or repaired water main
is 50 mg/L.
, Under emergency conditions, TCEQ allows water main disinfection to be
accomplished with a 500 mg/L chlorine dose for 30 minutes. Right Ans -
Under emergency conditions, TCEQ allows water main disinfection to be
accomplished with a ____ mg/L chlorine dose for ___ minutes.
Most Calcium Hypochlorite (HTH) contains about 65% available chlorine.
Right Ans - Most Calcium Hypochlorite (HTH) contains about ___% available
chlorine.
Chlorine dosage is the combination of demand plus the desired residual.
Right Ans - Chlorine dosage is the combination of demand plus the desired
_______.
The point at which all organic compounds, ammonia, and reducing agents
have reacted with the chlorine dose is called the Breakpoint. Right Ans -
The point at which all organic compounds, ammonia, and reducing agents
have reacted with the chlorine dose is called the ________.
After flushing and disinfecting newly installed water line, a bacteriological
sample should be collected every 1,000 feet along the new water main.
Right Ans - After flushing and disinfecting newly installed water line, a
bacteriological sample should be collected every _____ feet along the new
water main.
Cryptosporidium is very resistant to chlorine disinfection. Right Ans -
_____________ is very resistant to chlorine disinfection.
1 MGD = 694.4 gpm Right Ans - 1 MGD = _____ gpm
1 foot = 0.433 psi Right Ans - 1 MGD = 694.4 gpm
2.31 feet = 1 psi Right Ans - ____ feet = 1 psi
1 mile = 5,280 feet Right Ans - 1 mile = ______ feet
Volume, gal = 0.785 x D x D x Depth x 7.48 7.48 gal/cu ft Right Ans -
_________ = 0.785 x D x D x Depth x 7.48 gal/cu ft
Solutions
Fecal Coliform Right Ans - _____ ______ found in drinking water indicates the
water is contaminated with potentially pathogenic organisms that may be
harmful
Hepatitis, typhoid, cholera, and dysentery are all waterborne diseases that are
preventable with proper disinfection. Right Ans - Hepatitis, typhoid, ______,
and _________ are all waterborne diseases that are preventable with proper
disinfection.
Calcium Hypochlorite is a solid form of chlorine that is used by some small
water systems to maintain a chlorine residual. Right Ans - ______ ______ is a
solid form of chlorine that is used by some small water systems to maintain a
chlorine residual.
The chlorine demand represents the amount of chlorine used by reducing
agents and other impurities before a chlorine residual is formed. Right Ans
- The chlorine _______ represents the amount of chlorine used by reducing
agents and other impurities before a chlorine residual is formed.
Disinfection is commonly referred to as the most important water treatment
process. Right Ans - __________ is commonly referred to as the most
important water treatment process.
The main component of a hypo-chlorination system is a solution feed pump.
Right Ans - The main component of a hypo-chlorination system is a ________
________ pump.
Components of a chlorine gas feed system include a steel chlorine cylinder,
scale and rotameter. Right Ans - Components of a chlorine gas feed system
include a steel chlorine cylinder, ______, and ________.
Under non-emergency conditions, the chlorine residual for disinfecting new
or repaired water main is ___ mg/L. Right Ans - Under non-emergency
conditions, the chlorine residual for disinfecting new or repaired water main
is 50 mg/L.
, Under emergency conditions, TCEQ allows water main disinfection to be
accomplished with a 500 mg/L chlorine dose for 30 minutes. Right Ans -
Under emergency conditions, TCEQ allows water main disinfection to be
accomplished with a ____ mg/L chlorine dose for ___ minutes.
Most Calcium Hypochlorite (HTH) contains about 65% available chlorine.
Right Ans - Most Calcium Hypochlorite (HTH) contains about ___% available
chlorine.
Chlorine dosage is the combination of demand plus the desired residual.
Right Ans - Chlorine dosage is the combination of demand plus the desired
_______.
The point at which all organic compounds, ammonia, and reducing agents
have reacted with the chlorine dose is called the Breakpoint. Right Ans -
The point at which all organic compounds, ammonia, and reducing agents
have reacted with the chlorine dose is called the ________.
After flushing and disinfecting newly installed water line, a bacteriological
sample should be collected every 1,000 feet along the new water main.
Right Ans - After flushing and disinfecting newly installed water line, a
bacteriological sample should be collected every _____ feet along the new
water main.
Cryptosporidium is very resistant to chlorine disinfection. Right Ans -
_____________ is very resistant to chlorine disinfection.
1 MGD = 694.4 gpm Right Ans - 1 MGD = _____ gpm
1 foot = 0.433 psi Right Ans - 1 MGD = 694.4 gpm
2.31 feet = 1 psi Right Ans - ____ feet = 1 psi
1 mile = 5,280 feet Right Ans - 1 mile = ______ feet
Volume, gal = 0.785 x D x D x Depth x 7.48 7.48 gal/cu ft Right Ans -
_________ = 0.785 x D x D x Depth x 7.48 gal/cu ft
