Exam (elaborations)
Plumbing Course Final Exam
Plumbing Course Final Exam
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Plumbing Course Final ExamA 70' vertical pipe full of water has how much pressure at the base? Math - ANS-30.5
psi
Gray water shall be disinfected by an approved method that employs one or more
disinfectants such as _____. 1 Chlorine 2. Iodine 3. Ozone. IPC 1302 - ANS-All of the
above
A plumbing permit becomes invalid if the work authorized by the permit is not started
within _____ days from the date of issue, or if the work authorized by the permit is
stopped or abandoned after the work is started for a period of _____ days. IPC 106.5.3
- ANS-180, 180
All horizontal drains within a building shall be provided with cleanouts located not more
than _____ feet apart. GA 708.3.1 - ANS-100
The following are acceptable as a cleanout in lieu of the upstream cleanout required to
be placed at the end of a horizontal drain pipe serving _____. 1. "P" traps into which
floor drains, shower drains, or tub drains with removable strainers 2. building drains with
a cleanout located near the junction of the building drain and the building sewer which
may be rodded both ways 3. "P" trap into which a residential washing machine
discharges. IPC 708.3.1 - ANS-1, 2, and 3
Plumbing permits are set by_____? IPC 106.6.2 - ANS-local ordinance
Standpipes shall extend a maximum of _____ inches and a minimum of _____ inches
above the trap IPC 802.4 - ANS-42, 18
Vent stack shall connect at or below the lowest horizontal branch and where the vent
stack connects to the building drain, the connection shall be located downstream of the
drainage stack and _____. IPC 904.4 - ANS-connect within a distance of ten times the
diameter of the drainage stack
The maximum distance of 3" trap with a 3" fixture drain shall be from its vent is _____.
IPC 909.1 - ANS-12'
,A wet vent may serve _____. IPC 912.1 - ANS-A water closet, shower, floor drain, and
lavatory located on the same floor level within one bathroom.
A circuit vent may protect a maximum of _____ fixture traps with their fixture drains
connected to a horizontal branch drain. IPC 914.2 - ANS-8
Combination waste and vent systems shall not receive the discharge from fixtures other
than _____. IPC 915.1 - ANS-floor drains, sinks, lavatories and drinking fountains, food
waster grinders, & clinical sinks
Air admittance valves shall be located a minimum of _____ inches above the horizontal
branch drain or fixture drain being vented. IPC 918.4 - ANS-4
A combination-plumbing fixture is permitted to be installed on one trap provided that one
compartment is not more than _____ inches deeper than the other compartment and
the waste outlets are not more then _____ inches apart. IPC 1002.1 - ANS-6, 30
The size of the vertical conductors and leaders, building storm sewers, and any
horizontal branches of such drains or sewer shall be based on the _____ year hourly
rainfall. IPC 1106.1 - ANS-100
Information required on a permit application is established by _____. IPC 10.3 -
ANS-Local ordinance
A vent connecting one or more individual vents with a vent stack, stack vent or
terminating in the open air is _____. IPC 202 - ANS-Branch vent
Potable water systems or part thereof shall be subjected and proved tight under a
minimum pressure test of _____? IPC 312.5 - ANS-Working pressure
Air may be used to test a potable water system or part thereof if _____? IPC 312.5 -
ANS-The pipes are metallic
Solders used to make joints in potable water systems shall contain no more than _____
% lead. IPC 605.15.4 - ANS-.2%
Except where a parallel water distribution system manifold with shutoff valves is used,
shutoffs for individual fixtures shall be located _____? IPC 606.2.2 - ANS-on the fixture
supply of the fixture
, Where water is heated and stored in a closed plumbing system and thermal expansion
can occur, a device shall be installed that would limit the pressure to no more than
_____? IPC 607.3.2 - ANS-80 PSI
Who can contract for plumbing work under GA State Law? GA Law - ANS-Master
Plumber
A clean out is not required on the upstream end of a horizontal drain line if it
serves_____. 1. Water closet 2. Floor drain, shower drain or tub drain with a removable
strainer 3. Trap with clean out plug or removable trap. GA 708.3.1 - ANS-All of the
above
The size of clean outs shall not be less than _____.GA 708.7 - ANS-The size of the pipe
they are connected to up to 4"
If a floor drain is installed in a public restroom, the minimum size trap of the floor drain
allowed is ? IPC Table 709.1 - ANS-2"
If a floor drain with a 3-inch trap is installed in a public restroom, how many DFU's is it
assigned? (The trap is used in conjunction with hose bibs to wash the floor) IPC Table
709.2 - ANS-5
Restraints shall be provided to prevent movement of drainage pipe _____ in size. IPC
308.7.1 - ANS-Larger than 4 inch
A sand interceptor shall have a minimum water seal of _____? IPC 1003.5 - ANS-6"
The minimum number of plumbing fixtures for a given facility is determined by IPC
403.1 - ANS-The international plumbing code
The minimum size for a residential water heater is determined by? GA 506.1 - ANS-The
International Plumbing Code
The maximum water temperature allowed to be discharged from a shower valve is? IPC
424.5 - ANS-120 degrees F
Vacuum relief valves are required on a water heater installation when the heater is: IPC
424.5 - ANS-Bottom feed water heater
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