NC Plumbing Code, Fuel Gas, And Business Exam Prep Questions with Correct Answers 100%
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It must be increased one nominal pipe size for the entire develop the length of the vent pipe
What is the minimum size relief pipe for a sewage ejector ? 1 1/4 inches
A common may be permitted to vent how many traps 2 traps
When connecting vertical drains at different levels connecting the two fixture Drains shall be
considered a vent for the lower fixture drain but they may not receive what? Upper fixture
shall not be a water closet or a clothes washer
How many fixtures can be connected to a horizontal branch drain when circuit venting? 8
fixtures
Pipe bursting shall be limited to what size pipe in drainage piping? 6 inches and smaller
Drainage discharge DFU values for horizontal fixture branches shall be reduced to what in
circuit vented fixture branches? 50 percent
I relief vent shall be provided for circuit vent and horizontal branches receiving the discharge of
a what ? Four or more water closets
What kind of valve could be used to vent fixtures that are on the same floor level and connect
to the horizontal branch Drain Individual air admittance valves
Plastic pans may be used For Electric water heaters only
Barometric loop is ? 35 feet tall
,Water heater must be? Above garage floor 18 inches
Largest hole in a 2 x 10 is? 3 1/16 inch
When you have unstable ground what pipe must you lay in the ground? Cast iron
Contractors are required to hand out lead awareness papers For what reason? It is to warn
the homeowner of the dangers of lead based paint in homes before 1978
What has to be cleaned and maintained periodically? Interceptors
Shall be provided if more than 10 branch intervals, beginning at top floor, over 3 feet above
floor, Yoke vent
plumbing Water there to waste there from
long-term liability Longer than one year
Have to get within 10 days of completion of labor Final inspection
In residential homes how many DFU's Do you add for each additional bathroom group? 2
dfu's
Steam heat is category what? H1
AC over 15 tons is? H2
, AC Under 15 tons is? H3
Renew license within how many years and days? 3 years 1094 days
Sole proprietor Is ? Owner
Posted February 1 through April 30 each year? Osha 300 a forms
1 fixture unit equals how many gallons of water? 7.5 gallons of water
Invert is ? Bottom of pipe on inside
Purpose of license is ? To protect health ,well-being ,safety ,comfort of public
License expires Last day of December
Can only be used under ground Mechanical joints
Lead joints are supposed to be? 1 inch thick and no less than 1/8 of an inch recessed
Drain fitting threads are? Recessed
A failed inspection is considered what? A class three misdemeanor
A building sewer cannot be smaller than what ? 4 inches
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It must be increased one nominal pipe size for the entire develop the length of the vent pipe
What is the minimum size relief pipe for a sewage ejector ? 1 1/4 inches
A common may be permitted to vent how many traps 2 traps
When connecting vertical drains at different levels connecting the two fixture Drains shall be
considered a vent for the lower fixture drain but they may not receive what? Upper fixture
shall not be a water closet or a clothes washer
How many fixtures can be connected to a horizontal branch drain when circuit venting? 8
fixtures
Pipe bursting shall be limited to what size pipe in drainage piping? 6 inches and smaller
Drainage discharge DFU values for horizontal fixture branches shall be reduced to what in
circuit vented fixture branches? 50 percent
I relief vent shall be provided for circuit vent and horizontal branches receiving the discharge of
a what ? Four or more water closets
What kind of valve could be used to vent fixtures that are on the same floor level and connect
to the horizontal branch Drain Individual air admittance valves
Plastic pans may be used For Electric water heaters only
Barometric loop is ? 35 feet tall
,Water heater must be? Above garage floor 18 inches
Largest hole in a 2 x 10 is? 3 1/16 inch
When you have unstable ground what pipe must you lay in the ground? Cast iron
Contractors are required to hand out lead awareness papers For what reason? It is to warn
the homeowner of the dangers of lead based paint in homes before 1978
What has to be cleaned and maintained periodically? Interceptors
Shall be provided if more than 10 branch intervals, beginning at top floor, over 3 feet above
floor, Yoke vent
plumbing Water there to waste there from
long-term liability Longer than one year
Have to get within 10 days of completion of labor Final inspection
In residential homes how many DFU's Do you add for each additional bathroom group? 2
dfu's
Steam heat is category what? H1
AC over 15 tons is? H2
, AC Under 15 tons is? H3
Renew license within how many years and days? 3 years 1094 days
Sole proprietor Is ? Owner
Posted February 1 through April 30 each year? Osha 300 a forms
1 fixture unit equals how many gallons of water? 7.5 gallons of water
Invert is ? Bottom of pipe on inside
Purpose of license is ? To protect health ,well-being ,safety ,comfort of public
License expires Last day of December
Can only be used under ground Mechanical joints
Lead joints are supposed to be? 1 inch thick and no less than 1/8 of an inch recessed
Drain fitting threads are? Recessed
A failed inspection is considered what? A class three misdemeanor
A building sewer cannot be smaller than what ? 4 inches
