Topic Quiz, 4-Hour, Plumbing Flashcards
The water service pipe should be installed at least _____ below grade or ____ below the frost line.
a. 6’’, 12’’
b. 12’’, 6’’
c. 12’’, 18’’
d. 6’’, 6’’
b. 12’’, 6’’
[IRC P2603.5]
The minimum size pipe used from a water main to a house is: _____
a. 1/2’’
b. 1’’
c. 1 1/2’’
d. 3/4’’
d. 3/4’’
[IRC P2903.7]
PEX (Cross-linked polyethylene) tubing should be supported at least every _____ horizontally & vertically every_____.
a. 32’’, 10’
b. 32’’, 2’
c. 3’’, 10’
d. 6’’, 10’
a. 32’’, 10’
[IRC TABLE P2605.1]
Shower compartments shall have at least ____ of interior cross-sectioned area.
a. 300 sq in
b. 666 sq in
c. 900 sq in
d. 1200 sq in
c. 900 sq in
[IRC P2708.1]
Plumbing fixtures OTHER than _______, shall be provided with strainers.
a. bathtubs
b. shower stalls
c. water closets
d. water receptors
c. water closets (toilets)
[IRC P2702.1]
What is the minimum size trap for a bidet?
a. 1.5’’
b. 1.25’’
c. 2’’
d. 2.5’’
b. 1.25’’
[IRC TABLE P3201.7]
What is the minimum size of a drain pipe on any appliance?
a. 1 1/4’’
b. 2’’
c. 1 1/2’’
d. 3’’
a. 1 1/4’’
P2713.1 Bathtub Waste Outlets
P2714.1 Sink Waste Outlets
P2715.1 Laundry Tub Waste Outlet
P2716.1 Food-Waste Disposer Waste Outlets
P2717.2 Sink and Dishwasher
*** IRC states all serviced by 1 1/2’’ drain
A kitchen drain, if properly trapped, will have a minimum water seal of: _______
a. 4’’
b. 3’’
c. 2 1/2’’
d. 2’’
d. 2’’
[IRC P3201.2]
The minimum diameter of a floor drain waste outlet is: _____
a. 1 1/4’’
b. 1 1/2’’
c. 2’’
d 3’’
c. 2’’
[IRC P2719.1]
The minimum diameter for a dry vent is: ______
a. 1 1/4’’
b. 1’’
c. 1 1/2’’
d. 2’’
c. 1 1/2’’
[IRC P3108.3]
When a vent terminates less than 2’ above a window, what is the minimum horizontal distance required to the window opening?
a. 10’
b. 4’
c. 6’
d. 5’
a. 10’
[IRC P3103.5]
The minimum size of a plumbing exhaust vent is _____?
a. 1’’
b. 1 1/2’’
c. 2’’
d. 1 1/4’’
d. 1 1/4’’
[IRC P3113.1]
Water heaters located in a bedroom or bathroom shall be installed in a sealed enclosure so that combustion air will not be taken from the ______ space.
a. entire
b. immediate
c. living
d. ALL OF THE ABOVE
c. living
[IRC M2005.2]
A water heater inspection includes checking for all of the following features EXCEPT:
a. Pressure relief valve
b. A fullway valve
c. Vacuum breaker installation
d. Minimum clearance above garage floor of 18’’ to source of ignition
c. Vacuum breaker installation
[TAC §535.231(b) (iv), (viii) & (xii)
Access to water heaters located in an attic or underfloor crawl space is permitted to be through a ______ located in a sleeping room or bathroom where ventilation of those spaces is in accordance with code.
a. access door
b. shower
c. closet
d. ALL OF THE ABOVE
c. closet
[IRC M2005.2.1]
What is the maximum length of a gas line that connects to a gas appliance?
a. 6’
b. 8’
c. 3’
d. 12’
a. 6’
[IRC G2420.5.1 & G2422.1.2.1]
There should be NO gas pipe in circulating or ventilating air ducts (TRUE/FALSE)
TRUE
[IRC G2415.3]
Gas piping must be buried at least _____ underground
a. 18’’
b. 12’’
c. 24’’
d. 8’’
b. 12’’
[IRC G2415.12]
For a whirlpool tub, access openings size minimum _____ must be provided.
a. 12’’ X 12’’
b. 12’’ X 18’’
c. 20’’ X 30’’
d. 22’’ X 30’’
a. 12’’ X 12’’
[IRC P2720.1]
Whirlpool tub pump must be accessible & installed above the _____ of the traps.
a. Trap arm
b. Crown weir
c. Slip joint
d. Vacuum breaker
b. Crown weir
[IRC P2720.2]
Temperature limiting device for tubs required at maximum ______ .
a. 100°F
b. 110°F
c. 120°F
d. 130°F
c. 120°F
[IRC P2713.3]
[SCENARIO]
An inspector is in a garage inspecting a water heater. The inspector see the water heater is installed 18’’ above the garage floor, has a galvanized pan under it, it is piped to the outside of the dwelling. The inspector is looking for combustion air openings. There is an attic above the compartment of the water heater & an access door from the garage to the water heater. Where are these openings to be located?
a. 2 openings, one at the top & one at the bottom.
b. 1 opening at the top, the other opening at the top with a pipe extending down into the confined area.
c. 2 openings, one within 6’’ of the top, one within 6’’ of the bottom of the confined space.
d. 2 openings, one within 12’’ of the top, one within 12’’ of the bottom of the confined space.
d. 2 openings, one within 12’’ of the top, one within 12’’ of the bottom of the confined space.
[IRC G2407.6.1, FIGURE G2407.6.1(1), FIGURE G2407.6.1(2), FIGURE G2407.5.3]
A water closet, lavatory or bidet shall not be set closer than _____ from its center to any side wall, partition or vanity. There shall be a clearance of not less than _______ in front of a water closet, lavatory or bidet to any wall, fixture or door.
a. 12’’, 18’’
b. 24, 24’’
c. 18’’, 24’’
d. 15’’, 21’’
d. 15’’, 21’’
[IRC P2705.1 (5)]
Sillcocks, hose bibbs, wall hydrants and other openings with a hose connection shall be protected by an ____ or _________, a __________ or a ________.
a. atmospheric-type vacuum breaker
b. pressure-type vacuum breaker
c. pressure vacuum breaker assembly
d. permanently attached hose connection vacuum breaker
e. ALL OF THE ABOVE
e. ALL OF THE ABOVE
[IRC P2902.4.3]
Piping in the ground shall be laid on a firm bed for its entire length, except where support is otherwise provided. (TRUE/FALSE)
TRUE
[IRC P2605.1]
Traps shall have a liquid seal not less than ____ & not more than ______.
a. 2’’, 4’’
b. 3’’, 5’’
c. 4’’, 6’’
d. 5’’, 6’’
a. 2’’, 4’’
[IRC P3201.2]
The vent pipe connection to a fixture drain, except for water closets, shall be ____ the weir of the trap.
a. above
b. below
c. adjacent to
d. B & C
b. below
[IRC P3105.2]
Open vent pipes that extend through a roof shall be terminated not less than ______ above the roof.
a. 5’’
b. 6’’
c. 7’’
d. 8’’
b. 6’’
[IRC P3103.1]
Horizontal and vertical wet vents shall be not less than____.
a. 1’’
b. 1 1/4’’
c. 1 1/2’’
d. 1 3/4’’
c. 1 1/2’’
[IRC P3108.3]
Any combination of fixtures within two bathroom groups located on the same floor level shall be permitted to be vented by a horizontal or vertical wet vent. (TRUE/FALSE)
TRUE
[IRC P3108.1 & P3108.4]
The static water pressure at the building entrance for either public or private water service shall be not less than ______ & shall be not greater than _____.
a. 40 psi, 80 psi
b. 50 psi, 70 psi
c. 60 psi, 90 psi
d. 70 psi, 100psi
a. 40 psi, 80 psi
[IRC P2903.3 & P2903.3.1]
Joints between copper or copper-alloy tubing & galvanized steel pipe shall be made with a brass or dielectric fitting. The copper tubing shall be joined to the fitting in an approved manner, & the fitting shall be screwed to the threaded pipe. (TRUE/FALSE)
TRUE
[IRC P2905.17.1]
Gas piping MAY be used as a grounding electrode. (TRUE/FALSE)
FALSE
[IRC G2410.1]
Corrugated stainless steel tubing (CSST) gas piping systems shall be bonded to the electrical service grounding electrode system. The bonding jumper shall connect to a metallic pipe or fitting between the point of delivery and the first downstream CSST fitting. The bonding jumper shall be not smaller than ____copper wire or equivalent.
a. 12AWG
b. 10AWG
c. 8AWG
d. 6AWG
d. 6AWG
[IRC G2411.1.1]
The gas shutoff valve shall be located in the same room as a gas appliance. The shutoff valve shall be within ____of the appliance, & shall be installed _____ of the union, connector or quick disconnect device it serves.
a. 4’, upstream
b. 5’, downstream
c. 6’, upstream
d. 10’, downstream
c. 6’, upstream
[IRC G2420.5.1]
Gas connectors shall not exceed_____ in overall length. Measurement shall be made along the centerline of the connector. Only one connector shall be used for each appliance.
a. 4’
b. 5’
c. 6’
d. 10’
c. 6’
[IRC G2422.1.2.1]
Where a sediment trap is not incorporated as part of the appliance, a sediment trap shall be installed downstream of the appliance shutoff valve as close to the inlet of the appliance as practical. (TRUE/FALSE)
TRUE
[IRC G2419.4]
Water closets, lavatories and bidets. A water closet, lavatory or bidet shall not be set closer than ____ from its center to any side wall, partition or vanity. There shall be a clearance of not less than_____ in front of a water closet, lavatory or bidet to any wall, fixture or door.
a. 12’’, 25’’
b. 15’’, 21’’
c. 17’’, 30’’
d. 20’’, 24’’
b. 15’’, 21’’
[IRC P2705.1]
Flush tanks shall be equipped with an antisiphon fill valve backflow preventer shall be located not less than ____ above the full opening of the overflow pipe.
a. 3/4’’
b. 1’’
c. 1 1/2’’
d. 2’’
b. 1’’
[IRC P2902.4.1]
Access to whirlpool tubs shall be provided to circulation pumps in accordance with the fixture or pump manufacturer’s installation instructions. Where the manufacturer’s instructions do not specify the location and minimum size of field-fabricated access openings, an opening of not less than______ shall be installed for access to the circulation pump.
a. 10’’ X 10’’
b. 10’’ X 12’’
c. 12’’ X 12’’
d. 12’’ X 10’’
c. 12’’ X 12’’
[IRC P2720.1]
The whirlpool tub circulation pump shall be accessibly located _____ the crown weir of the trap.
a. below
b. above
c. adjacent to
d. B & C
b. above
[IRC P2720.2]
Hot water supplied to bathtubs and whirlpool bathtubs shall be limited to a temperature of not greater than ____ by a water-temperature limiting device
a. 110°F
b. 120°F
c. 130°F
d. 140°F
b. 120°F
[IRC P2713.3]
Shower compartments shall have not less than _____of interior cross-sectional area. Shower compartments shall be not less than _____ in minimum dimension measured from the finished interior dimension
a. 300 sq in, 60’’
b. 500 sq in, 50’’
c. 600 sq in, 40’’
d. 900 sq in, 30’’
d. 900 sq in, 30’’
[IRC P2708.1]
Hinged shower doors shall open outward, with a clearance of ____.
a. 20’’
b. 22’’
c. 24’’
d. 26’’
c. 24’’
[IRC P2708.1 & R307.1]
Bathtub and shower floors and walls above bathtubs with installed shower heads and in shower compartments shall be finished with a nonabsorbent surface. Such wall surfaces shall extend to a height of not less than _____ above the floor.
a. 60’’
b. 65’’
c. 72’’
d. 80’’
c. 72’’ (6’)
[IRC R307.2]
Standpipes shall extend not less than ____ but not greater than _____ above the trap weir.
a. 12’’, 30’’
b. 18’’, 36’’
c. 18’’, 42’’
d. 20’’, 42’’
c. 18’’, 42’’
[IRC P2706.2]
A laundry tray waste line is permitted to connect into a standpipe for the automatic clothes washer drain within ____ .
a. 20’’
b. 25’’
c. 30’’
d. 40’’
c. 30’’
[IRC P2706.2.1]
The combined discharge from a sink, dishwasher, and waste grinder is permitted to discharge through a single _____trap. The discharge pipe from the dishwasher shall be increased to not less than _____ in diameter and shall connect with a wye fitting between the discharge of the food-waste grinder & the trap inlet or to the head of the food grinder. The dishwasher waste line shall rise & be securely fastened to the underside of the counter before connecting to the sink tail piece or the food grinder.
a. 1’’, 1/2’’
b. 1 1/2’’, 1/2’’
c. 2’’, 3/4’’
d. 1 1/2’’, 3/4’’
d. 1 1/2’’, 3/4’’
[IRC P2717.2 & P2717.3]
Waste or discharge from reverse osmosis drinking water treatment units shall enter the drainage system through an _____ .
a. p-trap
b. weir
c. air gap
d. NONE OF THE ABOVE
c. air gap
[IRC P2908.2]
Sillcocks, hose bibbs, wall hydrants and other openings with a hose connection shall be protected by an atmospheric-type or pressure-type vacuum breaker or a removable hose connection vacuum breaker. (TRUE/FALSE)
FALSE (permanently attached)
[IRC P2902.4.3]
The potable water supply to lawn irrigation systems shall be protected against backflow by an __________ backflow prevention assembly.
a. atmospheric vacuum breaker
b. a pressure vacuum breaker assembly
c. a reduced pressure prevention assembly
d. ALL OF THE ABOVE
d. ALL OF THE ABOVE
[IRC P2902.5.3]
