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CWEA bundled exams with correct answers solutions
CWEA Environmental Compliance exam with correct solutions
[Mostrar más]CWEA Environmental Compliance exam with correct solutions
[Mostrar más]Why are gasoline and volatile solvents objectionable when present in a sewer? 
They produce an explosion hazard 
 
 
 
You should never attempt to install, maintain, repair or replace electrical equipment panels, controls, wiring or circuits unless 
You know what you are doing, are qualified and are...
Vista previa 2 fuera de 14 páginas
Añadir al carritoWhy are gasoline and volatile solvents objectionable when present in a sewer? 
They produce an explosion hazard 
 
 
 
You should never attempt to install, maintain, repair or replace electrical equipment panels, controls, wiring or circuits unless 
You know what you are doing, are qualified and are...
Sewer maintenance vehicles are 
difficult to maneuver 
 
 
 
At low concentrations, hydrogen sulfide smells like 
Rotten Eggs 
 
 
 
which safety hazard in a collection system operations can be detected by an insturment? 
Toxic Gases 
 
 
 
What must be checked first before entering a manhole? 
Prop...
Vista previa 1 fuera de 3 páginas
Añadir al carritoSewer maintenance vehicles are 
difficult to maneuver 
 
 
 
At low concentrations, hydrogen sulfide smells like 
Rotten Eggs 
 
 
 
which safety hazard in a collection system operations can be detected by an insturment? 
Toxic Gases 
 
 
 
What must be checked first before entering a manhole? 
Prop...
Legally responsible officals are required to report catagory 1 sanitary sewer overflows: 
Within two hours 
 
 
 
When testing a manhole for explosive gases when should the first test be made? 
Before removing the manhole cover 
 
 
 
When setting up to ventilate a manhole,the air inlet should be ho...
Vista previa 2 fuera de 5 páginas
Añadir al carritoLegally responsible officals are required to report catagory 1 sanitary sewer overflows: 
Within two hours 
 
 
 
When testing a manhole for explosive gases when should the first test be made? 
Before removing the manhole cover 
 
 
 
When setting up to ventilate a manhole,the air inlet should be ho...
Why are gasoline and volatile solvents objectionable when present in a sewer? 
They produce an explosion hazard 
 
 
 
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical equipment unless: 
You know what you are doing, are qualified, and are authorized. 
 
 
 
...
Vista previa 2 fuera de 9 páginas
Añadir al carritoWhy are gasoline and volatile solvents objectionable when present in a sewer? 
They produce an explosion hazard 
 
 
 
You should never attempt to install, troubleshoot, maintain, repair, or replace electrical equipment unless: 
You know what you are doing, are qualified, and are authorized. 
 
 
 
...
Which welding process is most commonly used for SMALL pipe maintenance welding? 
OxyAcetylene gas welding 
 
 
 
What is the proper definition of an engine? 
It is a machine designed to convert energy into useful mechanical motion 
 
 
 
What is wet stacking and how can it be prevented? 
It is unbur...
Vista previa 2 fuera de 6 páginas
Añadir al carritoWhich welding process is most commonly used for SMALL pipe maintenance welding? 
OxyAcetylene gas welding 
 
 
 
What is the proper definition of an engine? 
It is a machine designed to convert energy into useful mechanical motion 
 
 
 
What is wet stacking and how can it be prevented? 
It is unbur...
If the potential difference across the coil is low, the coil will: 
A-draw too much current 
B-become too hot 
C-Produce too much magnetic force 
D-not heat up 
D-not heat up 
 
 
 
The NEC identifies environments that contain flammable vapors and gases as which class of hazardous location? 
A-Class...
Vista previa 2 fuera de 12 páginas
Añadir al carritoIf the potential difference across the coil is low, the coil will: 
A-draw too much current 
B-become too hot 
C-Produce too much magnetic force 
D-not heat up 
D-not heat up 
 
 
 
The NEC identifies environments that contain flammable vapors and gases as which class of hazardous location? 
A-Class...
Confined Space 
A space that: 
-is large enough to enter and work. 
-has limited or restricted means for entry. 
-is not designed for continuous occupancy. 
 
 
 
Hot Work Permit 
An employer's written authorization to perform work capable of providing a source of ignition. 
 
 
 
Inerting 
A form ...
Vista previa 2 fuera de 13 páginas
Añadir al carritoConfined Space 
A space that: 
-is large enough to enter and work. 
-has limited or restricted means for entry. 
-is not designed for continuous occupancy. 
 
 
 
Hot Work Permit 
An employer's written authorization to perform work capable of providing a source of ignition. 
 
 
 
Inerting 
A form ...
A Flagger should Stand? 
A. On the shoulder adjacent to traffic being controlled 
B. In the closed lane before stopping vehicle traffic 
C. In the traffic lane. 
D. As stated in "A" or "B" above. 
D. As stated in "A" or "B" above. 
 
 
 
Legally responsible officials are required to report c...
Vista previa 3 fuera de 18 páginas
Añadir al carritoA Flagger should Stand? 
A. On the shoulder adjacent to traffic being controlled 
B. In the closed lane before stopping vehicle traffic 
C. In the traffic lane. 
D. As stated in "A" or "B" above. 
D. As stated in "A" or "B" above. 
 
 
 
Legally responsible officials are required to report c...
What does COLOR measure? 
Amount of color units (CU) in a sample. Color caused by natural metallic ions (Fe & Mg) & industrial wastes. 
 
 
 
What is the test summary for COLOR? 
Sample -> Tubes -> Compare to color standards over light source 
 
 
 
Which of the following techniques is used to...
Vista previa 2 fuera de 7 páginas
Añadir al carritoWhat does COLOR measure? 
Amount of color units (CU) in a sample. Color caused by natural metallic ions (Fe & Mg) & industrial wastes. 
 
 
 
What is the test summary for COLOR? 
Sample -> Tubes -> Compare to color standards over light source 
 
 
 
Which of the following techniques is used to...
Receiving job instruction and planning 
equipment use are part of: 
a. craft data. 
b. job preparation. 
c. work factors. 
d. leveled time. 
b. job preparation 
 
 
 
Anticipating other tasks or problems: 
a. usually creates additional problems. 
b. wastes time. 
c. sharply reduces the number 
of em...
Vista previa 4 fuera de 32 páginas
Añadir al carritoReceiving job instruction and planning 
equipment use are part of: 
a. craft data. 
b. job preparation. 
c. work factors. 
d. leveled time. 
b. job preparation 
 
 
 
Anticipating other tasks or problems: 
a. usually creates additional problems. 
b. wastes time. 
c. sharply reduces the number 
of em...
Which process is most commonly used for small pipe maintenance welding? 
D. Oxyacetylene gas welding 
 
 
 
What is the proper definition of an engine? 
B. It is machine designed to convert energy into useful mechanical motion 
 
 
 
What is wet stacking and how can it be prevented? 
C.Wet stacking ...
Vista previa 2 fuera de 6 páginas
Añadir al carritoWhich process is most commonly used for small pipe maintenance welding? 
D. Oxyacetylene gas welding 
 
 
 
What is the proper definition of an engine? 
B. It is machine designed to convert energy into useful mechanical motion 
 
 
 
What is wet stacking and how can it be prevented? 
C.Wet stacking ...
Acid: 
A substance which releases hydrogen ions 
when dissolved in water. Most acids will dissolve 
the common metals and will react with a base to 
form a neutral salt and water. An acid is the opposite 
of an alkali, has a pH rating lower than 7.0, 
will turn litmus paper red, and has a sour taste...
Vista previa 4 fuera de 57 páginas
Añadir al carritoAcid: 
A substance which releases hydrogen ions 
when dissolved in water. Most acids will dissolve 
the common metals and will react with a base to 
form a neutral salt and water. An acid is the opposite 
of an alkali, has a pH rating lower than 7.0, 
will turn litmus paper red, and has a sour taste...
Celcius 
(F-32)5/9 
 
 
 
HPC media water bath 
45`C, 3hr 
 
 
 
Precision 
a measure of how close a series of measurements are to one another 
 
 
 
Accuracy 
how close a measurement is to the true value 
 
 
 
Electrical Fire 
unplug & sodium bicarbonate 
 
 
 
analytical balance 
a device for det...
Vista previa 1 fuera de 2 páginas
Añadir al carritoCelcius 
(F-32)5/9 
 
 
 
HPC media water bath 
45`C, 3hr 
 
 
 
Precision 
a measure of how close a series of measurements are to one another 
 
 
 
Accuracy 
how close a measurement is to the true value 
 
 
 
Electrical Fire 
unplug & sodium bicarbonate 
 
 
 
analytical balance 
a device for det...
An industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? 
11.1 hours 
 
 
 
An industry ...
Vista previa 3 fuera de 30 páginas
Añadir al carritoAn industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? 
11.1 hours 
 
 
 
An industry ...
An industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? 
11.1 hours 
 
 
 
An industry ...
Vista previa 3 fuera de 30 páginas
Añadir al carritoAn industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? 
11.1 hours 
 
 
 
An industry ...
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