Wastewater Collections Grade 1 Test Questions And
Answers Graded A
What device is used during sewer excavation to A pump that operates continuously needs to be
protect workers an consist of portable inspected for cleanliness and leakage?
rectangular box open at? A) Daily
A) Trench box B) Weekly
B) Solid sleeting C) Monthly
C) bucket box D) Yearly - ANSWER -A) Daily
D) Frame shoring - ANSWER -A) Trench
box
In a pressure sensing controller, for every foot
water rises in a wet well, how much psi air will be
When entering a manual, ventilation shall be required to overcome the water pressure?
procured? A) 0.433 psi per foot
A) Only before entering B) 0.866 psi per foot
B) Anytime a manhole is entered C) 7.480 psi per foot
C) Only after leaving D) 8.340 psi per foot - ANSWER -A) 0.433
D) only when explosive atmospheres are present psi per foot
- ANSWER -B) Anytime a manhole is
entered
Which of the following is required for the
maintenance of couplings between the driving
What should a collection system operator know and driven elements?
in order to troubleshoot? A) Proper tuning
A) How to correct process operator problems B) Proper Curvature
B) How to correct equipment operational C) Proper alignment
problems D) Proper moisture draining - ANSWER -C)
C) How to prevent process operational problems Proper alignment
D) How to identify problems, causes, and
potential solutions - ANSWER -D) How to
identify problems, causes, and potential solutions
Check valves are used to?
A) Stop flow in both directions
B) Regulate velocity
Evidence of a chlorine leak can be detected by? C) Permit flow in only one direction
A) checking the leak gauge D) Permit air to escape from the pipe -
B) An explosimeter ANSWER -C) Permit flow in only one
C) Spring water on suspected leaks direction
D) Green or reddish deposits on material -
ANSWER -D) Green or reddish deposits on
material
What common error in maintenance of bearings
cause heat problems?
A) Lubricating the pump while it is not running
, Wastewater Collections Grade 1 Test Questions And
Answers Graded A
B) Overlubricating the bearings
C) Lubricating on the wrong day
D) Lubricating on the same day of the week -
ANSWER -B) Overlubricating the bearings What should be checked as a part of the
maintenance required for a lift station float
control?
A) Probe
How is the rate of air from the ventilation blower B) Float cleanliness
normally measured? C) Power supply
A) Cubic feet per minute D) Air tube - ANSWER -B) Float cleanliness
B) Milligrams per liter
C) Feet per minute
D) Grains per gallon - ANSWER -A) Cubic
feet per minute Enclosed open and semi closed are terms that
were designated and selection of?
A) Stuffing box
B) Impellers
So electric motors in a facility are three phase C) Lantern rings
powered with no phase protection- if one phase D) Sleeves - ANSWER -B) Impellers
was interrupted the motor would run?
A) Faster and cooler
B) Slower and heat up
C) Slower and cooler Accidental spills can be reduced and prevented
D) Faster and heat up - ANSWER -B) by?
Slower and heat up A) Starting a volume reduction program
B) Allowing only authorized persons to operate
valves
C) Having operators keep waste segregated
What is the purpose of forced draft ventilation in D) Implementing a strength reduction program -
a lift station? ANSWER -B) Allowing only authorized
A) Remove dangerous gases persons to operate valves
B) Prevent odors
C) Keep the air pressure equalized
D) Cool the pump - ANSWER -A) Remove
dangerous gases What is the most important purpose of a fuse or
circuit breaker in an electric unit?
A) To disconnect the system when it is not in use
B) To protect electrical equipment
Inorganic solids in wastewater are? C) To regulate current flow in the circuit
A) Mostly floatable solids D) To increase the current carrying capacity of
B) Inert and not subject to decay the circuit - ANSWER -B) To protect
C) Generally, of animals and vegetables organic electrical equipment
D) Mostly dissolved solids - ANSWER -B)
Inert and not subject to decay
Answers Graded A
What device is used during sewer excavation to A pump that operates continuously needs to be
protect workers an consist of portable inspected for cleanliness and leakage?
rectangular box open at? A) Daily
A) Trench box B) Weekly
B) Solid sleeting C) Monthly
C) bucket box D) Yearly - ANSWER -A) Daily
D) Frame shoring - ANSWER -A) Trench
box
In a pressure sensing controller, for every foot
water rises in a wet well, how much psi air will be
When entering a manual, ventilation shall be required to overcome the water pressure?
procured? A) 0.433 psi per foot
A) Only before entering B) 0.866 psi per foot
B) Anytime a manhole is entered C) 7.480 psi per foot
C) Only after leaving D) 8.340 psi per foot - ANSWER -A) 0.433
D) only when explosive atmospheres are present psi per foot
- ANSWER -B) Anytime a manhole is
entered
Which of the following is required for the
maintenance of couplings between the driving
What should a collection system operator know and driven elements?
in order to troubleshoot? A) Proper tuning
A) How to correct process operator problems B) Proper Curvature
B) How to correct equipment operational C) Proper alignment
problems D) Proper moisture draining - ANSWER -C)
C) How to prevent process operational problems Proper alignment
D) How to identify problems, causes, and
potential solutions - ANSWER -D) How to
identify problems, causes, and potential solutions
Check valves are used to?
A) Stop flow in both directions
B) Regulate velocity
Evidence of a chlorine leak can be detected by? C) Permit flow in only one direction
A) checking the leak gauge D) Permit air to escape from the pipe -
B) An explosimeter ANSWER -C) Permit flow in only one
C) Spring water on suspected leaks direction
D) Green or reddish deposits on material -
ANSWER -D) Green or reddish deposits on
material
What common error in maintenance of bearings
cause heat problems?
A) Lubricating the pump while it is not running
, Wastewater Collections Grade 1 Test Questions And
Answers Graded A
B) Overlubricating the bearings
C) Lubricating on the wrong day
D) Lubricating on the same day of the week -
ANSWER -B) Overlubricating the bearings What should be checked as a part of the
maintenance required for a lift station float
control?
A) Probe
How is the rate of air from the ventilation blower B) Float cleanliness
normally measured? C) Power supply
A) Cubic feet per minute D) Air tube - ANSWER -B) Float cleanliness
B) Milligrams per liter
C) Feet per minute
D) Grains per gallon - ANSWER -A) Cubic
feet per minute Enclosed open and semi closed are terms that
were designated and selection of?
A) Stuffing box
B) Impellers
So electric motors in a facility are three phase C) Lantern rings
powered with no phase protection- if one phase D) Sleeves - ANSWER -B) Impellers
was interrupted the motor would run?
A) Faster and cooler
B) Slower and heat up
C) Slower and cooler Accidental spills can be reduced and prevented
D) Faster and heat up - ANSWER -B) by?
Slower and heat up A) Starting a volume reduction program
B) Allowing only authorized persons to operate
valves
C) Having operators keep waste segregated
What is the purpose of forced draft ventilation in D) Implementing a strength reduction program -
a lift station? ANSWER -B) Allowing only authorized
A) Remove dangerous gases persons to operate valves
B) Prevent odors
C) Keep the air pressure equalized
D) Cool the pump - ANSWER -A) Remove
dangerous gases What is the most important purpose of a fuse or
circuit breaker in an electric unit?
A) To disconnect the system when it is not in use
B) To protect electrical equipment
Inorganic solids in wastewater are? C) To regulate current flow in the circuit
A) Mostly floatable solids D) To increase the current carrying capacity of
B) Inert and not subject to decay the circuit - ANSWER -B) To protect
C) Generally, of animals and vegetables organic electrical equipment
D) Mostly dissolved solids - ANSWER -B)
Inert and not subject to decay
