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WorksheetsPlumbing
Total questions: 44
Worksheet time: 37mins
What type of joints are used to install polythylene tubing for hydronic piping systems?
Flanged
Heat-fusion
Compression
Brazed
The maximum amount of fuel oil stored above ground or inside a building shall be ___ gallons.
500
700
740
660
Vent piping on oil tanks shall be not smaller than (a) - inch pipe.
Oil tank vent piping shall terminate outside of buildings at a point not less than (a) feet, measured vertically or horizontally, from any building opening.
Components of a solar thermal energy system that might be subjected to a vacuum during operation or shutdown shall be designed to withstand such a vacuum or shall be protected with (a) .
What is BTU and abbreviation for and what is it?
For gas appliances installations using the two-permanent-openings methods for outdoor combustion air, one opening commencing within ___ inches of the top and one commencing within ___ inches of the bottom of the enclosure, shall be provided.
(Answer for both blanks is the same)
12
10
20
17
Fel gas piping installed across roof surfaces shall be elevated not less than (a) inches above the roof.
Where gas piping is located within a framing member and is less than ___ inches from the framing member face to which wall, ceiling or floor membranes will be attached, the piping shall be protected by shield plates.
1
2 1/2
1 1/2
1 3/4
What is the thinnest steal material that can be used to cover the area of concealed gas piping?
No. 16 gage
No. 14 gage
No. 10 gage
No. 20 gage
What is the minimum depth that underground fuel gas piping systems can be installed at?
12 feet below grade
8 inches below grade
12 inches below grade
18 inches below grade
Vent connectors for draft-hood-equipped appliances shall not be (a) than the draft hood outlet diameter.
Gas appliance shutoff valves shall be located in the same room as the appliance. The shutoff valve shall be within (a) feet of the appliance.
True or False
Fuel gas appliance connectors shall have an overall length not to exceed 8 feet.
True
False
Gas vents that are over 12 inches in size or are located less than 8 feet from a vertical wall or similar obstruction shall terminate not less than (a) feet above the highest point where they pass through the roof.
The minimum height a Type B or Type L gas vent can terminate above the highest connected appliance draft hood or flue collar.
6 feet
4 feet
8 feet
5 feet
A Type B-W gas vent shall terminate not less than ___ feet in vertical height above the bottom of the all furnace.
15
12
9
24
How many inches of clearance from grade level should the lowest portion of a gas floor furnace have minimum?
(a)
Fuel-gas-fired clothes dryer exhaust duct size shall be ___ inches nominal in diameter.
7
4
3
5
What is the longest a transition duct (used to connect the dryer to the exhaust duct system) can be?
16 feet
11 feet
5 feet
8 feet
When doing an air test on DWV systems during rough-in plumbing, the portion under test shall be maintained at a gauge pressure of ___ psi for a period of ___ minutes.
When doing a water test on DWV systems during rough-in plumbing, each section shall be filled with water to a point not less than (a) feet above the highest fitting connection in that section.
Water service pipe shall be installed not less than ___ inches deep and not less than ___ inches below the frost line.
(Choose two answers!)
12
10
15
9
6
Trenching installed parallel to footings shall not extend into the bearing plane of a footing or wall. The upper boundary of the bearing plane is a line that extends downward, at an angle of ___ - degrees from horizontal, from the outside bottom edge of the footing or wall.
36
45
90
60
How far apart should supports for 1-inch copper or copper alloy tubing be spaced?
(a)
Minimum diameter of fixture tail pieces for sinks, dishwashers, laundry tubs, bathtubs, and similar fixtures.
2 inches
3/4 inch
1 1/4 inches
1 inch
1 1/2 inches
A water closet, lavatory, or bidet shall not be set closer than ___ inches from its center to any side wall, partition, or vanity.
12
15
20
24
There shall be a clearance of less than ___ inches in front of a water closer, bidet, or lavatory to any wall, fixture, or door.
30
25
21
36
Standpipes shall extend not less than ___ inches and not greater than ___ inches above the trap weir.
Write your answer as follows: 31 < x < 210
(a)
What is the minimum interior cross-sectional area required for a shower compartment?
900 square inches
300 square inches
1200 square inches
1000 square inches
Lavatories shall have waste outlets not less than (a) inches in diameter.
Bathtubs shall be equipped with a waste outlet that is not less than ___ inches in diameter.
1
2
1 1/2
1 3/4
Sinks shall be provided with waste outlets not less than ___ inches in diameter.
1
2
1 1/2
1 3/4
Each compartment of a laundry tub shall be provided with a waste outlet not less than (a) inches in diameter.
What is the minimum diameter that the waste outlet of a floor drain can be?
(a)
Bottom fed tank-type water heaters and bottom fed tanks connected to water heaters shall have a (a) valve installed.
Maximum psi for the static water pressure of a water supply system.
90
80
70
60
The size of the water service pipe shall be not less than (a) inch.
A ___-___ fire sprinkler system shall be separate and independent from the water distribution system.
(Include the hyphen in your answer!)
(a)
The water supply shall have the capacity to provide the required design flow rate for sprinklers for a period of ___ minutes for dwelling units one story in height and less than ___ square feet in area.
7 minutes
1,400 sq ft
10 minutes
3,000 sq ft
10 minutes
2,000 sq ft
7 minutes
2,000 sq ft
Where chlorine is used for disinfection, the non-potable water shall contain not more than ___ ppm of chloramines or free chlorine.
8
4
12
15
The drainage fixture unit (d.f.u.) value of a dishwasher is (a) .
Any combination of fixtures within two bathroom groups located on the same floor level shall be ___ to be vented by a horizontal wet vent.
permitted
prohibited
connected
obstructed
The sump pump shall be of a capacity and head appropriate to (a) use requirements.
