Class C Water Operator License Exam Questions & Answers(RATED A)
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Course
FLORIDA WASTEWATER OPERATOR CLASS B CERTIFICATION
Institution
FLORIDA WASTEWATER OPERATOR CLASS B CERTIFICATION
Ammonia mixed with chlorine gas creates a - ANSWER white smoke
The most difficult part of a water distribution operator's job. - ANSWER furnish a continuous supply
Physical connection between a safe and potentially unsafe water source. - ANSWER cross connection
A distribution system is a -...
Class C Water Operator License Exam
Questions & Answers(RATED A)
Ammonia mixed with chlorine gas creates a - ANSWER white smoke
The most difficult part of a water distribution operator's job. - ANSWER furnish a
continuous supply
Physical connection between a safe and potentially unsafe water source. - ANSWER
cross connection
A distribution system is a - ANSWER looped system
Dead end mains should be flushed - ANSWER every month
Excess nitrate causes a condition called - ANSWER blue baby syndrome
Water hardness is caused by - ANSWER calcium and magnesium
Sewer mains should be __ft away from water mains. - ANSWER 9
Water with a pH less than 7 is considered to be - ANSWER acidic
Bacti records are kept for ____yrs and chemical records are kept for ___yrs. - ANSWER
5, 10
Bacti samples have to be returned to the lab within ___hrs of the collection time. -
ANSWER 30
Color in the water supply should be less than _____ units. - ANSWER 15
Chlorine is ______ times heavier than air. - ANSWER 2.5
90% of underground pipe failures are related to improper - ANSWER backfill and
bedding
The spoil bank should be located at least ___ft away from the ditch. - ANSWER 2
The following minimum residuals is ______mg/L for free chlorine and ____mg/L for total
chlorine. - ANSWER .2, .5
Public opinion of the water utility is _______ at a standstill. - ANSWER never
A bacti sample should be taken every ____ft of pipe. - ANSWER 1000
, The most common collection point for a bacti sample is the water tap _______. -
ANSWER outside the house
The most common valve is the _______. - ANSWER gate valve
The most commonly used fire hydrants used in distribution systems are the _________.
- ANSWER dry barrel
Hydrants have a _____ point in case the hydrant is struck by a vehicle. - ANSWER
breakaway
Controlling valves regulate pressure flow ____ and flow _______. - ANSWER rates,
direction
Electricity is the preferred power source for most distribution systems because of
______, reliability and relatively low _______. - ANSWER availability, cost
5/8 meters need to be tested at least every _____ to _______ yrs. - ANSWER 5, 10
When disinfecting a water line, use ____mg/L of chlorine in the main and let stand for
____hrs. - ANSWER 50, 24
When pressure testing the water main, the test pressure should be ___times as great
as the ________ operating pressure. - ANSWER 1.5, normal
Distribution systems are usually laid out in ____ and/or circular designs. - ANSWER
loops
Dead ends in a system are usually located on ____ shaped or ____ designs. -
ANSWER tree, grid
An operator may refer to Piezometric elevation, static head, or pressure head as ____
height - ANSWER vertical water column
The main purpose of the water storage facility is to provide ____ amount of water to
average or equalize the ______ demands plus provide ______ pressures to fight fires. -
ANSWER sufficient, daily, minimum
Electrical demand in a wiring system is determined by the amount of ____ consumed. -
ANSWER watts
Baffling inside a storage facility may be needed to prevent "hot spots" and ____ flows. -
ANSWER straight through
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