Page 1 of 25
WASTEWATER MA MUNICIPAL GRADE 4 EXAM |
{LATEST 2026/ 2027 UPDATE} COMPLETE
ACTUAL AND AUTHENTIC EXAM | BRAND NEW!
An industrial facility plans to install a process that would result in a
high concentration BOD waste. If the waste is discharged to a
wastewater .........the plant being overloaded. What should be done?
Require pretreatment by the industrial facility
Which of the following explains how to handle a chlorine release?
A Strategic action plan
✅B Emergency response plan
C Preventative maintenance plan
D Capital improvement plan
A waste with a high BOD and low suspended solids indicates that a
major portion of the solids are in
Suspension
,Page 2 of 25
Several of the following contain significant quantities of
organic material. Which are they?
a. Domestic wastewater
b. Cooling water from thermal power stations
c. Paper mill waste
d. Metal plating wastes
e. Tanning wastes
A, C , D
For a centrifugal pump in good condition operating at sea level, the
practical suction lift should not exceed
15 Feet
Why is it recommended that approved backflow devices be installed
above grade level ?
To prevent the relief port of the device from ever becoming
submerged
, Page 3 of 25
At what drying oven temperature is the total suspended solids test
run ?
103 - 105 degrees Celsius
When incubating fecal coliform bacteria, what is the purpose of using
a waterbath?
TO promote growth of amphibious bacteria
Reciprocation pumps should only be started when the
Suction and discharge lines are open
The BOD analysis requires incubation for 5 days at what temperature?
20 degrees Celsius
During normal operation of a positive pressure, open- circuit self
contained breathing apparatus (SCBA), the bypass valve should...
Fully Closed
WASTEWATER MA MUNICIPAL GRADE 4 EXAM |
{LATEST 2026/ 2027 UPDATE} COMPLETE
ACTUAL AND AUTHENTIC EXAM | BRAND NEW!
An industrial facility plans to install a process that would result in a
high concentration BOD waste. If the waste is discharged to a
wastewater .........the plant being overloaded. What should be done?
Require pretreatment by the industrial facility
Which of the following explains how to handle a chlorine release?
A Strategic action plan
✅B Emergency response plan
C Preventative maintenance plan
D Capital improvement plan
A waste with a high BOD and low suspended solids indicates that a
major portion of the solids are in
Suspension
,Page 2 of 25
Several of the following contain significant quantities of
organic material. Which are they?
a. Domestic wastewater
b. Cooling water from thermal power stations
c. Paper mill waste
d. Metal plating wastes
e. Tanning wastes
A, C , D
For a centrifugal pump in good condition operating at sea level, the
practical suction lift should not exceed
15 Feet
Why is it recommended that approved backflow devices be installed
above grade level ?
To prevent the relief port of the device from ever becoming
submerged
, Page 3 of 25
At what drying oven temperature is the total suspended solids test
run ?
103 - 105 degrees Celsius
When incubating fecal coliform bacteria, what is the purpose of using
a waterbath?
TO promote growth of amphibious bacteria
Reciprocation pumps should only be started when the
Suction and discharge lines are open
The BOD analysis requires incubation for 5 days at what temperature?
20 degrees Celsius
During normal operation of a positive pressure, open- circuit self
contained breathing apparatus (SCBA), the bypass valve should...
Fully Closed
