Water Operator Class C License Exam with
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precise detailed answers
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Ammonia |mixed |with |chlorine |gas |creates |a |- |CORRECT |ANSWER✔✔-white |smoke
The |most |difficult |part |of |a |water |distribution |operator's |job. |- |CORRECT |ANSWER✔✔-furnish |a |
continuous |supply
Physical |connection |between |a |safe |and |potentially |unsafe |water |source. |- |CORRECT |ANSWER✔✔-
cross |connection
A |distribution |system |is |a |- |CORRECT |ANSWER✔✔-looped |system
Dead |end |mains |should |be |flushed |- |CORRECT |ANSWER✔✔-every |month
Excess |nitrate |causes |a |condition |called |- |CORRECT |ANSWER✔✔-blue |baby |syndrome
Water |hardness |is |caused |by |- |CORRECT |ANSWER✔✔-calcium |and |magnesium
Sewer |mains |should |be |__ft |away |from |water |mains. |- |CORRECT |ANSWER✔✔-9
Water |with |a |pH |less |than |7 |is |considered |to |be |- |CORRECT |ANSWER✔✔-acidic
Bacti |records |are |kept |for |____yrs |and |chemical |records |are |kept |for |___yrs. |- |CORRECT |
ANSWER✔✔-5, |10
Bacti |samples |have |to |be |returned |to |the |lab |within |___hrs |of |the |collection |time. |- |CORRECT |
ANSWER✔✔-30
Color |in |the |water |supply |should |be |less |than |_____ |units. |- |CORRECT |ANSWER✔✔-15
Chlorine |is |______ |times |heavier |than |air. |- |CORRECT |ANSWER✔✔-2.5
90% |of |underground |pipe |failures |are |related |to |improper |- |CORRECT |ANSWER✔✔-backfill |and |
bedding
The |spoil |bank |should |be |located |at |least |___ft |away |from |the |ditch. |- |CORRECT |ANSWER✔✔-2
The |following |minimum |residuals |is |______mg/L |for |free |chlorine |and |____mg/L |for |total |chlorine. |- |
CORRECT |ANSWER✔✔-.2, |.5
Public |opinion |of |the |water |utility |is |_______ |at |a |standstill. |- |CORRECT |ANSWER✔✔-never
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, A |bacti |sample |should |be |taken |every |____ft |of |pipe. |- |CORRECT |ANSWER✔✔-1000
The |most |common |collection |point |for |a |bacti |sample |is |the |water |tap |_______. |- |CORRECT |
ANSWER✔✔-outside |the |house
A |standpipe |is |considered |ground |storage |unless |it |exceeds |_____ft |above |the |highest |________. |- |
CORRECT |ANSWER✔✔-80, |service |connection
________ |protection |is |the |electrochemical |method |for |preventing |________ |of |metal |tanks. |- |
CORRECT |ANSWER✔✔-cathodic, |corrosion
The |_____ |is |the |only |cross |connection |control |method |approved |by |_______. |- |CORRECT |
ANSWER✔✔-air |gap, |tceq
_______ |on |a |pipeline |depend |on |the |_____ |or |coefficient |of |pipe |roughness. |- |CORRECT |
ANSWER✔✔-friction |loss, |c |factor
__________ |occurs |whenever |there |is |a |______ |in |the |velocity |or |direction |of |water |flow. |- |CORRECT |
ANSWER✔✔-water |hammer, |sudden |change
The |______ |water |pressure |required |by |the |rules |and |regulations |is |____psi |under |any |and |all |
conditions. |- |CORRECT |ANSWER✔✔-minimum, |20
100, |150, |200 |and |250 |are |approved |classes |of |_____ |_____. |- |CORRECT |ANSWER✔✔-working |
pressure
______ |is |used |to |anchor |pipe |bends. |- |CORRECT |ANSWER✔✔-concrete
A |general |deposit |of |mineral |particles |evenly |along |the |inside |of |the |pipe |is |________. |- |CORRECT |
ANSWER✔✔-tuberculation
Shoring |should |be |used |if |a |ditch |is |___ft |or |deeper. |- |CORRECT |ANSWER✔✔-5
A |written |sample |writing |plan |is |required |for |_______ |monitoring. |- |CORRECT |ANSWER✔✔-
coliform
Ladders |should |be |placed |every |___ft |in |a |ditch. |- |CORRECT |ANSWER✔✔-25
An |oxygen |deficient |atmosphere |is |defined |as |one |which |contains |_____ |than |______ |% |oxygen. |- |
CORRECT |ANSWER✔✔-less, |19.5
Characteristics |of |a |Centrifugal |Pump:
as |the |head |_____ |the |discharge |________. |- |CORRECT |ANSWER✔✔-increases, |decreases
The |operator |should |leave |a |________ |of |slack |in |flexible |tubing. |- |CORRECT |ANSWER✔✔-
Nursylab.com
| | | | | | |
precise detailed answers
| |
Ammonia |mixed |with |chlorine |gas |creates |a |- |CORRECT |ANSWER✔✔-white |smoke
The |most |difficult |part |of |a |water |distribution |operator's |job. |- |CORRECT |ANSWER✔✔-furnish |a |
continuous |supply
Physical |connection |between |a |safe |and |potentially |unsafe |water |source. |- |CORRECT |ANSWER✔✔-
cross |connection
A |distribution |system |is |a |- |CORRECT |ANSWER✔✔-looped |system
Dead |end |mains |should |be |flushed |- |CORRECT |ANSWER✔✔-every |month
Excess |nitrate |causes |a |condition |called |- |CORRECT |ANSWER✔✔-blue |baby |syndrome
Water |hardness |is |caused |by |- |CORRECT |ANSWER✔✔-calcium |and |magnesium
Sewer |mains |should |be |__ft |away |from |water |mains. |- |CORRECT |ANSWER✔✔-9
Water |with |a |pH |less |than |7 |is |considered |to |be |- |CORRECT |ANSWER✔✔-acidic
Bacti |records |are |kept |for |____yrs |and |chemical |records |are |kept |for |___yrs. |- |CORRECT |
ANSWER✔✔-5, |10
Bacti |samples |have |to |be |returned |to |the |lab |within |___hrs |of |the |collection |time. |- |CORRECT |
ANSWER✔✔-30
Color |in |the |water |supply |should |be |less |than |_____ |units. |- |CORRECT |ANSWER✔✔-15
Chlorine |is |______ |times |heavier |than |air. |- |CORRECT |ANSWER✔✔-2.5
90% |of |underground |pipe |failures |are |related |to |improper |- |CORRECT |ANSWER✔✔-backfill |and |
bedding
The |spoil |bank |should |be |located |at |least |___ft |away |from |the |ditch. |- |CORRECT |ANSWER✔✔-2
The |following |minimum |residuals |is |______mg/L |for |free |chlorine |and |____mg/L |for |total |chlorine. |- |
CORRECT |ANSWER✔✔-.2, |.5
Public |opinion |of |the |water |utility |is |_______ |at |a |standstill. |- |CORRECT |ANSWER✔✔-never
Nursylab.com
, A |bacti |sample |should |be |taken |every |____ft |of |pipe. |- |CORRECT |ANSWER✔✔-1000
The |most |common |collection |point |for |a |bacti |sample |is |the |water |tap |_______. |- |CORRECT |
ANSWER✔✔-outside |the |house
A |standpipe |is |considered |ground |storage |unless |it |exceeds |_____ft |above |the |highest |________. |- |
CORRECT |ANSWER✔✔-80, |service |connection
________ |protection |is |the |electrochemical |method |for |preventing |________ |of |metal |tanks. |- |
CORRECT |ANSWER✔✔-cathodic, |corrosion
The |_____ |is |the |only |cross |connection |control |method |approved |by |_______. |- |CORRECT |
ANSWER✔✔-air |gap, |tceq
_______ |on |a |pipeline |depend |on |the |_____ |or |coefficient |of |pipe |roughness. |- |CORRECT |
ANSWER✔✔-friction |loss, |c |factor
__________ |occurs |whenever |there |is |a |______ |in |the |velocity |or |direction |of |water |flow. |- |CORRECT |
ANSWER✔✔-water |hammer, |sudden |change
The |______ |water |pressure |required |by |the |rules |and |regulations |is |____psi |under |any |and |all |
conditions. |- |CORRECT |ANSWER✔✔-minimum, |20
100, |150, |200 |and |250 |are |approved |classes |of |_____ |_____. |- |CORRECT |ANSWER✔✔-working |
pressure
______ |is |used |to |anchor |pipe |bends. |- |CORRECT |ANSWER✔✔-concrete
A |general |deposit |of |mineral |particles |evenly |along |the |inside |of |the |pipe |is |________. |- |CORRECT |
ANSWER✔✔-tuberculation
Shoring |should |be |used |if |a |ditch |is |___ft |or |deeper. |- |CORRECT |ANSWER✔✔-5
A |written |sample |writing |plan |is |required |for |_______ |monitoring. |- |CORRECT |ANSWER✔✔-
coliform
Ladders |should |be |placed |every |___ft |in |a |ditch. |- |CORRECT |ANSWER✔✔-25
An |oxygen |deficient |atmosphere |is |defined |as |one |which |contains |_____ |than |______ |% |oxygen. |- |
CORRECT |ANSWER✔✔-less, |19.5
Characteristics |of |a |Centrifugal |Pump:
as |the |head |_____ |the |discharge |________. |- |CORRECT |ANSWER✔✔-increases, |decreases
The |operator |should |leave |a |________ |of |slack |in |flexible |tubing. |- |CORRECT |ANSWER✔✔-
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