CWEA E1 FINAL PAPER PRACTICE
SOLUTION COMPLETE ANSWER RESOURCE
●● What is one cause of an ineffective maintenance program?
Answer: Airtight joint
●● Which items are sources of pressure on the financial resources of a
wasterwater collection system agency?
Answer: Reduction of a federal, state, and local funds
●● What problem can occur when velocities in a collection system are
too high or too low?
Answer: The velocities can interfere with the operation and maintenance
of the system
●● What are lateral and branch sewers?
Answer: Sewers that serve the upper ends of the street sewer
components of a collection system
●● Why must building sewer connections be constructed with care?
Answer: To avoid sources of ground water infiltration and sewer
stoppages
,●● When operators review collection system designs, which factors
should be considered?
Answer: Manhole locations
●● What kind of training should each person whose actions affect TTC
zone safety receive?
Answer: Training appropriate to the job decisions each individual is
required to make
●● What is a TTC plan?
Answer: A description of traffic control to be used for facilitating all
traffic through a TTC zone
●● When are governing road authorities most likely to restrict
construction work in streets?
Answer: Peak traffic periods
●● In what area should work activity and storage of equipment,
vehicles, and materials not occur?
Answer: Buffer space
●● What is one way to minimize the possibility of temporary traffic
control cones being blown over or displaced by wind or moving
vehicular traffic?
, Answer: Apply retroreflective tape or equip with lighting devices
●● Which item is not a major category of hazards?
Answer: Insect, bug, rodent, and snake bites
●● What is the major concern in confined spaces?
Answer: Whether the existing ventilation is capable of removing
atmospheric hazards that may exist or develop
●● When using atmospheric analyzers to test the air in confined spaces,
in what order should test be performed?
Answer: Oxygen content, combustible gases and toxic gases
●● Why must the electrochemical sensor in an atmospheric test
instrument be replaced periodically?
Answer: It loses its sensitivity to hydrogen sulfide
●● When installing braces or screw jacks which one should be installed
first?
Answer: Top brace or jack
●● If the human body becomes a variable resistor, what determines the
amount of damage the electric current does to the body
SOLUTION COMPLETE ANSWER RESOURCE
●● What is one cause of an ineffective maintenance program?
Answer: Airtight joint
●● Which items are sources of pressure on the financial resources of a
wasterwater collection system agency?
Answer: Reduction of a federal, state, and local funds
●● What problem can occur when velocities in a collection system are
too high or too low?
Answer: The velocities can interfere with the operation and maintenance
of the system
●● What are lateral and branch sewers?
Answer: Sewers that serve the upper ends of the street sewer
components of a collection system
●● Why must building sewer connections be constructed with care?
Answer: To avoid sources of ground water infiltration and sewer
stoppages
,●● When operators review collection system designs, which factors
should be considered?
Answer: Manhole locations
●● What kind of training should each person whose actions affect TTC
zone safety receive?
Answer: Training appropriate to the job decisions each individual is
required to make
●● What is a TTC plan?
Answer: A description of traffic control to be used for facilitating all
traffic through a TTC zone
●● When are governing road authorities most likely to restrict
construction work in streets?
Answer: Peak traffic periods
●● In what area should work activity and storage of equipment,
vehicles, and materials not occur?
Answer: Buffer space
●● What is one way to minimize the possibility of temporary traffic
control cones being blown over or displaced by wind or moving
vehicular traffic?
, Answer: Apply retroreflective tape or equip with lighting devices
●● Which item is not a major category of hazards?
Answer: Insect, bug, rodent, and snake bites
●● What is the major concern in confined spaces?
Answer: Whether the existing ventilation is capable of removing
atmospheric hazards that may exist or develop
●● When using atmospheric analyzers to test the air in confined spaces,
in what order should test be performed?
Answer: Oxygen content, combustible gases and toxic gases
●● Why must the electrochemical sensor in an atmospheric test
instrument be replaced periodically?
Answer: It loses its sensitivity to hydrogen sulfide
●● When installing braces or screw jacks which one should be installed
first?
Answer: Top brace or jack
●● If the human body becomes a variable resistor, what determines the
amount of damage the electric current does to the body
