Year Two - Plumber/Gasfitter Apprenticeship Level 2 Plumbing Systems Theory
Terms in this set (186)
Can a dishwasher tie into a Yes.
garburator?
Can a kitchen sink have a concealed No.
overflow?
A DWV design must be able to Trap seal.
maintain what 2 things? Atmospheric pressure.
Explain the reasoning behind why a It doesn't allow sewer gas to vent out of the stack.
normally closed backwater valve is
not permitted to be installed on a
sanitary building drain?
A hot water supply for a lavatory is Left, right.
on the ____ and the cold is on the ____.
How could the principles of galvanic To connect dissimilar metals.
corrosion be used to protect a hot
water tank?
How does a tank water closet Refill tube.
maintain its trap seal?
How does momentum affect a trap It causes siphonage.
seal?
How far apart are the hot and cold 4"
openings for a standard two handled
lavatory faucet?
2026/2027
,Year Two - Plumber/Gasfitter Apprenticeship Level 2 Plumbing Systems Theory
How far from the top of a HWT could 150mm
a T&P valve be installed on the
piping?
How is an under mount kitchen sink Manufactured supplied clips and silicone.
fastened to the counter top?
How long does an air pressure test 15 minutes.
have to hold for a DWV rough in
test?
How long must an air test hold on a 2 hours.
potable water system?
How many fixture units does a 0
garburator and a dishwater impose
on the DWV system if they are
installed on the fixture outlet of a
kitchen sink?
How many hangers would be 3
required for a 6.75-meter-long
horizontal run of 1/2" hard temper
copper?
How many PSI is 4 feet of water 4 divided by 2.31 = 1.73
column?
How many total fixture units would a 0.7
5-Lpm lavatory faucet be if used for
a single-family home?
2026/2027
, Year Two - Plumber/Gasfitter Apprenticeship Level 2 Plumbing Systems Theory
How much clean fill is required for 300mm tampered.
piping?
How much kPa are exerted on a 2.98kPa 35kPa.
DWV system at 3 meters high?
How much pressure is used when 1" W.C
administering a final test?
How must the drain for a dishwasher Before p-trap dishwasher wye run hose as high as
connect to a kitchen sink fixture possible.
drain?
How often should maintenance be After each use.
done on sewer cleaning equipment?
How would a faulty diverter knob on Change plastic inside or spout.
a tub spot be rectified?
How would a plumber know where Critical level mark.
to set the tank water level?
How would you install a shower Thread a fitting on the end.
head nipple without scratching the
chrome?
If a building has DWV piping, what Brass.
type of material must the flange be
made from?
If a compression faucet is leaking Seat.
from the spout, what part(s) would Seat seal.
need to be replaced?
2026/2027
Terms in this set (186)
Can a dishwasher tie into a Yes.
garburator?
Can a kitchen sink have a concealed No.
overflow?
A DWV design must be able to Trap seal.
maintain what 2 things? Atmospheric pressure.
Explain the reasoning behind why a It doesn't allow sewer gas to vent out of the stack.
normally closed backwater valve is
not permitted to be installed on a
sanitary building drain?
A hot water supply for a lavatory is Left, right.
on the ____ and the cold is on the ____.
How could the principles of galvanic To connect dissimilar metals.
corrosion be used to protect a hot
water tank?
How does a tank water closet Refill tube.
maintain its trap seal?
How does momentum affect a trap It causes siphonage.
seal?
How far apart are the hot and cold 4"
openings for a standard two handled
lavatory faucet?
2026/2027
,Year Two - Plumber/Gasfitter Apprenticeship Level 2 Plumbing Systems Theory
How far from the top of a HWT could 150mm
a T&P valve be installed on the
piping?
How is an under mount kitchen sink Manufactured supplied clips and silicone.
fastened to the counter top?
How long does an air pressure test 15 minutes.
have to hold for a DWV rough in
test?
How long must an air test hold on a 2 hours.
potable water system?
How many fixture units does a 0
garburator and a dishwater impose
on the DWV system if they are
installed on the fixture outlet of a
kitchen sink?
How many hangers would be 3
required for a 6.75-meter-long
horizontal run of 1/2" hard temper
copper?
How many PSI is 4 feet of water 4 divided by 2.31 = 1.73
column?
How many total fixture units would a 0.7
5-Lpm lavatory faucet be if used for
a single-family home?
2026/2027
, Year Two - Plumber/Gasfitter Apprenticeship Level 2 Plumbing Systems Theory
How much clean fill is required for 300mm tampered.
piping?
How much kPa are exerted on a 2.98kPa 35kPa.
DWV system at 3 meters high?
How much pressure is used when 1" W.C
administering a final test?
How must the drain for a dishwasher Before p-trap dishwasher wye run hose as high as
connect to a kitchen sink fixture possible.
drain?
How often should maintenance be After each use.
done on sewer cleaning equipment?
How would a faulty diverter knob on Change plastic inside or spout.
a tub spot be rectified?
How would a plumber know where Critical level mark.
to set the tank water level?
How would you install a shower Thread a fitting on the end.
head nipple without scratching the
chrome?
If a building has DWV piping, what Brass.
type of material must the flange be
made from?
If a compression faucet is leaking Seat.
from the spout, what part(s) would Seat seal.
need to be replaced?
2026/2027
