1|Page
WATER DISTRIBUTION GRADE 1 EXAM LATEST
WITH ACTUAL QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
100% GUARANTEED PASS
Drawdown - ....ANSWER ....✔✔ The difference
between the static groundwater and the pumping level.
Pumping - static = drawdown
A customer complaint about the presence of brown floc
in tap water can best be handled by...? - ....ANSWER
....✔✔ investigating the problem ASAP.
The term "aquifer" refers to what type of water? -
....ANSWER ....✔✔ Groundwater
One indication of corrosive water is a high concentration
of...? - ....ANSWER ....✔✔ Carbon dioxide. CO2 in
water creates carbonic acid, which drives down the pH,
making the water acidic.
,2|Page
Cathodic protection means protection against what? -
....ANSWER ....✔✔ Corrosion.
The primary reason for the use of a dry barrel fire
hydrant is to...? - ....ANSWER ....✔✔ keep the hydrant
from freezing.
At the same barometric pressure, the amount of
dissolved oxygen in cold water tends to be ______ the
amount of dissolved oxygen in warm water. -
....ANSWER ....✔✔ More than. Denser water
molecules hold onto oxygen more than the less dense do.
The principal constituent in water that causes corrosion of
metals is...? - ....ANSWER ....✔✔ hydrogen sulfide
Which component of a centrifugal pump moves the
water? - ....ANSWER ....✔✔ the impeller
Comprehensive map (AKA Charles Atlas) - ....ANSWER
....✔✔ A record containing size, location, and types
of water mains, valves, hydrants, tanks, reservoirs, and
pump stations.
,3|Page
Water suitable for drinking - ....ANSWER ....✔✔
Potable
Velocity of flow in mains is usually expressed in terms of
- ....ANSWER ....✔✔ feet per second
A "competent person" at an excavation work site is
capable of... - ....ANSWER ....✔✔ identifying hazards
and has the authority to take corrective measures.
Hydrogen sulfide gas smells like...? - ....ANSWER
....✔✔ rotten eggs
Oxidation and filtration can be used for what? -
....ANSWER ....✔✔ To remove high iron content from
a well supply.
Hardness may be expressed in...? - ....ANSWER
....✔✔ milligrams per liter as CaCO3
The basic unit of electrical power is the...? - ....ANSWER
....✔✔ Watt. Watt = volt x amp
, 4|Page
Check valves are used to...? - ....ANSWER ....✔✔
permit flow in only one direction
Standard pumper - connection fire hydrants should not
be installed on water mains smaller than _________
inches in diameter - ....ANSWER ....✔✔ 6
Beards or long sideburns prohibit an operator from
safely...? - ....ANSWER ....✔✔ wearing the face mask
of a self-contained breathing apparatus.
The water table is defined as the...? - ....ANSWER
....✔✔ upper surface of groundwater
The shaft speed of an electric motor is most commonly
expressed in units of what? - ....ANSWER ....✔✔
revolutions per minute
A coupon test installation in a distribution system is used
to...? - ....ANSWER ....✔✔ determine the rate of
scaling or corrosion. You want to be on the slight scaling
side. You do not want to be on the corrosion side.
WATER DISTRIBUTION GRADE 1 EXAM LATEST
WITH ACTUAL QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
100% GUARANTEED PASS
Drawdown - ....ANSWER ....✔✔ The difference
between the static groundwater and the pumping level.
Pumping - static = drawdown
A customer complaint about the presence of brown floc
in tap water can best be handled by...? - ....ANSWER
....✔✔ investigating the problem ASAP.
The term "aquifer" refers to what type of water? -
....ANSWER ....✔✔ Groundwater
One indication of corrosive water is a high concentration
of...? - ....ANSWER ....✔✔ Carbon dioxide. CO2 in
water creates carbonic acid, which drives down the pH,
making the water acidic.
,2|Page
Cathodic protection means protection against what? -
....ANSWER ....✔✔ Corrosion.
The primary reason for the use of a dry barrel fire
hydrant is to...? - ....ANSWER ....✔✔ keep the hydrant
from freezing.
At the same barometric pressure, the amount of
dissolved oxygen in cold water tends to be ______ the
amount of dissolved oxygen in warm water. -
....ANSWER ....✔✔ More than. Denser water
molecules hold onto oxygen more than the less dense do.
The principal constituent in water that causes corrosion of
metals is...? - ....ANSWER ....✔✔ hydrogen sulfide
Which component of a centrifugal pump moves the
water? - ....ANSWER ....✔✔ the impeller
Comprehensive map (AKA Charles Atlas) - ....ANSWER
....✔✔ A record containing size, location, and types
of water mains, valves, hydrants, tanks, reservoirs, and
pump stations.
,3|Page
Water suitable for drinking - ....ANSWER ....✔✔
Potable
Velocity of flow in mains is usually expressed in terms of
- ....ANSWER ....✔✔ feet per second
A "competent person" at an excavation work site is
capable of... - ....ANSWER ....✔✔ identifying hazards
and has the authority to take corrective measures.
Hydrogen sulfide gas smells like...? - ....ANSWER
....✔✔ rotten eggs
Oxidation and filtration can be used for what? -
....ANSWER ....✔✔ To remove high iron content from
a well supply.
Hardness may be expressed in...? - ....ANSWER
....✔✔ milligrams per liter as CaCO3
The basic unit of electrical power is the...? - ....ANSWER
....✔✔ Watt. Watt = volt x amp
, 4|Page
Check valves are used to...? - ....ANSWER ....✔✔
permit flow in only one direction
Standard pumper - connection fire hydrants should not
be installed on water mains smaller than _________
inches in diameter - ....ANSWER ....✔✔ 6
Beards or long sideburns prohibit an operator from
safely...? - ....ANSWER ....✔✔ wearing the face mask
of a self-contained breathing apparatus.
The water table is defined as the...? - ....ANSWER
....✔✔ upper surface of groundwater
The shaft speed of an electric motor is most commonly
expressed in units of what? - ....ANSWER ....✔✔
revolutions per minute
A coupon test installation in a distribution system is used
to...? - ....ANSWER ....✔✔ determine the rate of
scaling or corrosion. You want to be on the slight scaling
side. You do not want to be on the corrosion side.
