Water Distribution D2 California test Actual Test
2026 | All Questions and Correct Answers |
Verified Answers | Just Released
A coupon test installation in a distribution system is used to ---------CORRECT
ANSWER-----------------determine the rate scaling or corrosion.
Disease causing bacteria are know as ---------CORRECT ANSWER-----------------
pathogenic
Normally, surface water and groundwater have a PH range of ---------CORRECT
ANSWER-----------------6.8 to 8.5
Which is the best definition of turbidity in water? ---------CORRECT ANSWER---------
--------anything in water that scatters light
A competent person must inspect excavations and adjacent areas for hazards -----
----CORRECT ANSWER-----------------daily, prior to the start of work, and as needed
throughout the shift.
, The component of a centrifugal pump sometimes installed on the end of a suction
pipe to hold the priming is known as a ---------CORRECT ANSWER-----------------foot
valve
The principal purpose of an altitude valve on an elevated tank is to ---------
CORRECT ANSWER-----------------control maximum filling level in distribution
storage.
The term primacy means the ---------CORRECT ANSWER-----------------authority by
the states to supersede the USEPA drinking water regulations.
Reciprocating positive displacement pumps are also known as ---------CORRECT
ANSWER-----------------Piston pumps
Modertely hard water will have a hardness range of ----- mg/L as ---------CORRECT
ANSWER-----------------61 to 120
A common method for removing hydrogen sulfide from water is ---------CORRECT
ANSWER-----------------aeration
2026 | All Questions and Correct Answers |
Verified Answers | Just Released
A coupon test installation in a distribution system is used to ---------CORRECT
ANSWER-----------------determine the rate scaling or corrosion.
Disease causing bacteria are know as ---------CORRECT ANSWER-----------------
pathogenic
Normally, surface water and groundwater have a PH range of ---------CORRECT
ANSWER-----------------6.8 to 8.5
Which is the best definition of turbidity in water? ---------CORRECT ANSWER---------
--------anything in water that scatters light
A competent person must inspect excavations and adjacent areas for hazards -----
----CORRECT ANSWER-----------------daily, prior to the start of work, and as needed
throughout the shift.
, The component of a centrifugal pump sometimes installed on the end of a suction
pipe to hold the priming is known as a ---------CORRECT ANSWER-----------------foot
valve
The principal purpose of an altitude valve on an elevated tank is to ---------
CORRECT ANSWER-----------------control maximum filling level in distribution
storage.
The term primacy means the ---------CORRECT ANSWER-----------------authority by
the states to supersede the USEPA drinking water regulations.
Reciprocating positive displacement pumps are also known as ---------CORRECT
ANSWER-----------------Piston pumps
Modertely hard water will have a hardness range of ----- mg/L as ---------CORRECT
ANSWER-----------------61 to 120
A common method for removing hydrogen sulfide from water is ---------CORRECT
ANSWER-----------------aeration
