Illinois Class D Water License Questions With Complete
Solutions
.019 MGD too gallons per day Correct Answers 19,000 gallons
.895 MGD too gallons per day Correct Answers 895,000
gallons
.999 MGD too gallons per day Correct Answers 999,000
gallons
1,245,000 gallons too million gallons per day (MGD) Correct
Answers 1.245 MGD
2.20 MGD too gallons per day Correct Answers 2,200,000
gallons
678,000 gallons too million gallons per day (MGD) Correct
Answers .678 MGD
9,500 gallons too million gallons per day (MGD) Correct
Answers .0095 MGD
98,000 gallons too million gallons per day (MGD) Correct
Answers .098 MGD
A 4 inch water main 5000 feet in length than to be flushed long
enough to completely change out the water in the main. How
long would it take to completely fuss out this line if the fire
hydrant the end of the line is flowing at a rate of 325 gallons per
minute? Correct Answers 10 minutes
, A 5/8" x 3/4" water meter serves a residence. Over a period of
years the meter __________ in recording actual water used
Correct Answers Decreases
A 6 inch PVC Watermain is installed what should be installed at
the end of the main Correct Answers Concrete thrusting block
A boil order must be issued if systems pressure drops below 20
psi or if contaminated of any part of the system is suspected.
Why? Correct Answers It is a regulation of the IEPA, and to
protect the health of water consumers
A boil order should be issued for? Correct Answers Until
further notice
A circuit breaker is used to Correct Answers Automatically shut
down on electrical circuit is overloaded to prevent damage
A connection between a possible water supply and a non-potable
water supply is? Correct Answers A cross connection, a
possible danger to water customers, and a violation of state
regulations
A device that is used to repair a cracked Watermain is? Correct
Answers Split-sleeve clamp
A distribution system that is "looped" instead of having dead
ends will help prevent Correct Answers Tastes and odors,
"dirty" water, and chlorine depletion
Solutions
.019 MGD too gallons per day Correct Answers 19,000 gallons
.895 MGD too gallons per day Correct Answers 895,000
gallons
.999 MGD too gallons per day Correct Answers 999,000
gallons
1,245,000 gallons too million gallons per day (MGD) Correct
Answers 1.245 MGD
2.20 MGD too gallons per day Correct Answers 2,200,000
gallons
678,000 gallons too million gallons per day (MGD) Correct
Answers .678 MGD
9,500 gallons too million gallons per day (MGD) Correct
Answers .0095 MGD
98,000 gallons too million gallons per day (MGD) Correct
Answers .098 MGD
A 4 inch water main 5000 feet in length than to be flushed long
enough to completely change out the water in the main. How
long would it take to completely fuss out this line if the fire
hydrant the end of the line is flowing at a rate of 325 gallons per
minute? Correct Answers 10 minutes
, A 5/8" x 3/4" water meter serves a residence. Over a period of
years the meter __________ in recording actual water used
Correct Answers Decreases
A 6 inch PVC Watermain is installed what should be installed at
the end of the main Correct Answers Concrete thrusting block
A boil order must be issued if systems pressure drops below 20
psi or if contaminated of any part of the system is suspected.
Why? Correct Answers It is a regulation of the IEPA, and to
protect the health of water consumers
A boil order should be issued for? Correct Answers Until
further notice
A circuit breaker is used to Correct Answers Automatically shut
down on electrical circuit is overloaded to prevent damage
A connection between a possible water supply and a non-potable
water supply is? Correct Answers A cross connection, a
possible danger to water customers, and a violation of state
regulations
A device that is used to repair a cracked Watermain is? Correct
Answers Split-sleeve clamp
A distribution system that is "looped" instead of having dead
ends will help prevent Correct Answers Tastes and odors,
"dirty" water, and chlorine depletion
