WASTEWATER COLLECTIONS GRADE 1 | TOP SCORES
MADE SIMPLE | TRUSTED TEST SOLUTIONS!
QUALITY CONTENT YOU CAN RELY ON!
What device is used during sewer excavation to protect workers an consist of portable
rectangular box open at?
A) Trench box
B) Solid sleeting
C) bucket box
D) Frame shoring Answer: A) Trench box
When entering a manual, ventilation shall be procured?
A) Only before entering
B) Anytime a manhole is entered
C) Only after leaving
D) only when explosive atmospheres are present Answer: B) Anytime a manhole is entered
What should a collection system operator know in order to troubleshoot?
A) How to correct process operator problems
B) How to correct equipment operational problems
C) How to prevent process operational problems
D) How to identify problems, causes, and potential solutions Answer: D) How to identify
problems, causes, and potential solutions
Evidence of a chlorine leak can be detected by?
A) checking the leak gauge
B) An explosimeter
C) Spring water on suspected leaks
D) Green or reddish deposits on material Answer: D) Green or reddish deposits on material
A pump that operates continuously needs to be inspected for cleanliness and leakage?
A) Daily
B) Weekly
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,C) Monthly
D) Yearly Answer: A) Daily
In a pressure sensing controller, for every foot water rises in a wet well, how much psi air
will be required to overcome the water pressure?
A) 0.433 psi per foot
B) 0.866 psi per foot
C) 7.480 psi per foot
D) 8.340 psi per foot Answer: A) 0.433 psi per foot
Which of the following is required for the maintenance of couplings between the driving
and driven elements?
A) Proper tuning
B) Proper Curvature
C) Proper alignment
D) Proper moisture draining Answer: C) Proper alignment
Check valves are used to?
A) Stop flow in both directions
B) Regulate velocity
C) Permit flow in only one direction
D) Permit air to escape from the pipe Answer: C) Permit flow in only one direction
What common error in maintenance of bearings cause heat problems?
A) Lubricating the pump while it is not running
B) Overlubricating the bearings
C) Lubricating on the wrong day
D) Lubricating on the same day of the week Answer: B) Overlubricating the bearings
How is the rate of air from the ventilation blower normally measured?
A) Cubic feet per minute
B) Milligrams per liter
C) Feet per minute
D) Grains per gallon Answer: A) Cubic feet per minute
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, So electric motors in a facility are three phase powered with no phase protection- if one
phase was interrupted the motor would run?
A) Faster and cooler
B) Slower and heat up
C) Slower and cooler
D) Faster and heat up Answer: B) Slower and heat up
What is the purpose of forced draft ventilation in a lift station?
A) Remove dangerous gases
B) Prevent odors
C) Keep the air pressure equalized
D) Cool the pump Answer: A) Remove dangerous gases
Inorganic solids in wastewater are?
A) Mostly floatable solids
B) Inert and not subject to decay
C) Generally, of animals and vegetables organic
D) Mostly dissolved solids Answer: B) Inert and not subject to decay
What should be checked as a part of the maintenance required for a lift station float
control?
A) Probe
B) Float cleanliness
C) Power supply
D) Air tube Answer: B) Float cleanliness
Enclosed open and semi closed are terms that were designated and selection of?
A) Stuffing box
B) Impellers
C) Lantern rings
D) Sleeves Answer: B) Impellers
Accidental spills can be reduced and prevented by?
A) Starting a volume reduction program
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
MADE SIMPLE | TRUSTED TEST SOLUTIONS!
QUALITY CONTENT YOU CAN RELY ON!
What device is used during sewer excavation to protect workers an consist of portable
rectangular box open at?
A) Trench box
B) Solid sleeting
C) bucket box
D) Frame shoring Answer: A) Trench box
When entering a manual, ventilation shall be procured?
A) Only before entering
B) Anytime a manhole is entered
C) Only after leaving
D) only when explosive atmospheres are present Answer: B) Anytime a manhole is entered
What should a collection system operator know in order to troubleshoot?
A) How to correct process operator problems
B) How to correct equipment operational problems
C) How to prevent process operational problems
D) How to identify problems, causes, and potential solutions Answer: D) How to identify
problems, causes, and potential solutions
Evidence of a chlorine leak can be detected by?
A) checking the leak gauge
B) An explosimeter
C) Spring water on suspected leaks
D) Green or reddish deposits on material Answer: D) Green or reddish deposits on material
A pump that operates continuously needs to be inspected for cleanliness and leakage?
A) Daily
B) Weekly
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,C) Monthly
D) Yearly Answer: A) Daily
In a pressure sensing controller, for every foot water rises in a wet well, how much psi air
will be required to overcome the water pressure?
A) 0.433 psi per foot
B) 0.866 psi per foot
C) 7.480 psi per foot
D) 8.340 psi per foot Answer: A) 0.433 psi per foot
Which of the following is required for the maintenance of couplings between the driving
and driven elements?
A) Proper tuning
B) Proper Curvature
C) Proper alignment
D) Proper moisture draining Answer: C) Proper alignment
Check valves are used to?
A) Stop flow in both directions
B) Regulate velocity
C) Permit flow in only one direction
D) Permit air to escape from the pipe Answer: C) Permit flow in only one direction
What common error in maintenance of bearings cause heat problems?
A) Lubricating the pump while it is not running
B) Overlubricating the bearings
C) Lubricating on the wrong day
D) Lubricating on the same day of the week Answer: B) Overlubricating the bearings
How is the rate of air from the ventilation blower normally measured?
A) Cubic feet per minute
B) Milligrams per liter
C) Feet per minute
D) Grains per gallon Answer: A) Cubic feet per minute
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, So electric motors in a facility are three phase powered with no phase protection- if one
phase was interrupted the motor would run?
A) Faster and cooler
B) Slower and heat up
C) Slower and cooler
D) Faster and heat up Answer: B) Slower and heat up
What is the purpose of forced draft ventilation in a lift station?
A) Remove dangerous gases
B) Prevent odors
C) Keep the air pressure equalized
D) Cool the pump Answer: A) Remove dangerous gases
Inorganic solids in wastewater are?
A) Mostly floatable solids
B) Inert and not subject to decay
C) Generally, of animals and vegetables organic
D) Mostly dissolved solids Answer: B) Inert and not subject to decay
What should be checked as a part of the maintenance required for a lift station float
control?
A) Probe
B) Float cleanliness
C) Power supply
D) Air tube Answer: B) Float cleanliness
Enclosed open and semi closed are terms that were designated and selection of?
A) Stuffing box
B) Impellers
C) Lantern rings
D) Sleeves Answer: B) Impellers
Accidental spills can be reduced and prevented by?
A) Starting a volume reduction program
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
