26. The minimum slope of a 6 inch horizontal drainage pipe is ___________.
A. 1/4 inch per foot
B. 1/8 inch per foot
C. 1/16 inch per foot
D. level
27. A potable ground water source or pump suction line must not be located less than ____________ feet from a farm silo.
A. 25 feet
B. 50 feet
C. 100 feet
D. 200 feet
28. Traps that depend on moving parts to maintain the seal _____________.
A. shall be inspected yearly.
B. shall be made of stainless steel or pvc plastic.
C. are allowed in one and two family dwellings
D. are prohibited
29. For fuel gas piping, the maximum support spacing for 1-1/2" steel pipe nominal run in a vertical direction is ______________________ .
A. 4 feet
B. 6 feet
C. 8 feet
D. at every floor level
30. The minimum size supply pipe for a urinal, flush tank is _____ inch.
A. 3/8 inch
B. 1/2 inch
C. 3/4 inch
D. 1 inch
31. For purposes of calculating maximum fixture unit load and drainage sizing, what is the drainage fixture unit value as a load factor for a bathtub (with or without overhead shower or whirlpool attachments).
A. 1 drainage fixture unit
B. 2 drainage fixture units
C. 3 drainage fixture units
D. 4 drainage fixture units
E. 5 drainage fixture units
32. A framing member must not be cut, notched or bored ___________________________________.
A. more than one third of its horizontal dimension
B. unless stamped and mark for such alteration
C. in excess of limitations specified in the International Building Code
D. without pre-authorization of the building official or certified designer or both.
33. Exterior water supply system piping may not be installed less than ________________________ below the frost line.
A. 6 inches
B. 12 inches
C. 24 inches
D. 48 inches
34. What is the maximum number of drainage fixture units allowed to be connected to any portion of the building drain or the building sewer, including branches of the building drain for a system with a 15 inch building drain pipe with a slope of 1/2 inch per foot?
A. 26 drainage fixture units
B. 250 drainage fixture units
C. 4,200 drainage fixture units
D. 12,000 drainage fixture units
35. The covers of water supply gravity tanks must be vented with a return bend vent pipe with an area not less than the area of the down-feed riser pipe, and the vent must be screened with a corrosion-resistant screen of not less than ________________________.
A. 16 by 20 mesh per inch
B. 20 by 20 mesh per inch
C. 16 by 16 mesh per inch
D. none of these
36. Where building sub drains cannot be discharged to the sewer by gravity flow must be discharged into a tightly covered and vented _________ from which the liquid is lifted and discharged into the building gravity drainage system by automatic pumping equipment or other approved method.
A. drain
B. elevator
C. sump
D. storage tank
37. For purposes of calculating maximum fixture unit load and drainage sizing, what is the drainage fixture unit value as a load factor for a bathroom group as defined in Section 202 (water closet flushing greater than 1.6 gpf).
A. 1 drainage fixture unit
B. 2 drainage fixture units
C. 4 drainage fixture units
D. 5 drainage fixture units
E. 6 drainage fixture units
38. The maximum allowable horizontal hanger spacing for steel pipe is __________ feet.
A. 2 feet
B. 3 feet
C. 6 feet
D. 12 feet
39. Required cleanouts may not be installed in concealed locations. Concealed locations include, but are not limited to, the inside of plenums, within walls, within floor/ceiling assemblies, below grade and in crawl spaces where the height from the crawl space floor to the nearest obstruction along the path from the crawl space opening to the clean-out location is less than ____________.
A. 48 inches
B. 12 inches
C. 24 inches
D. none of these
40. What is the maximum flow rate allowed for a sink faucet?
A. 0.5 gpm at 60 psi
B. 2.5 gpm at 80 psi
C. 2.2 gpm at 60 psi
D. 1.5 gpm at 80 psi
41. Attics containing a water heater must be provided with an opening and unobstructed passageway large enough to allow removal of the water heater. The passageway shall not be less than _______________ wide and not more than _____________ in length when measured along the centerline of the passageway from the opening to the water heater.
A. 30 inches, 20 feet
B. 22 inches, 20 feet
C. 22 inches, 24 feet
D. 22 inches, 20 feet
42. Fuel gas piping may not be installed in or through a ducted supply, return or exhaust, or a clothes chute, chimney or gas vent, dumbwaiter or elevator shaft. Piping installed ____________ of the point of delivery may not extend through any townhouse unit other than the unit served by such piping.
A. upstream
B. downstream
C. either upstream or downstream
D. none of these
43. What is the maximum capacity in cubic feet of gas per hour for schedule 40 metallic pipe 1.25" nominal size with a run length of 156 feet? The fuel is natural gas with and inlet pressure of less than 2 psi and a pressure drop of 0.5 inches on a water column.
A. 424 cubic feet of gas per hour
B. 322 cubic feet of gas per hour
C. 99 cubic feet of gas per hour
D. 296 cubic feet of gas per hour
44. Where trenches are excavated for installation of pipes, the bottom of the trench must form a bed for the pipe that ____________________________ . .
A. has blocking a minimum of every 2 feet must be provided between joints
B. support at least each end of each pipe section
C. solid and continuous load-bearing support must be provided between joints
D. is soft and not compacted
45. What is the maximum number of drainage fixture units that may be connected to a waste drainage systems horizontal branch stack pipe that is 2-1/2 inches in diameter?
A. 3 drainage fixture units
B. 6 drainage fixture units
C. 12 drainage fixture units
D. 160 drainage fixture units
E. 360 drainage fixture units
46. If water pressure within a building exceeds ______ static, an approved water-pressure reducing valve with strainer must be installed to reduce the pressure in the building water distribution piping to ______ static or less. Exceptions ignored.
A. 80 psi, 80 psi
B. 60 psi, 60 psi
C. 50 psi, 50 psi
D. 40 psi, 40 psi
47. Underground fuel gas piping systems must be installed a minimum depth of _______________ below grade, except for individual outside appliances. Individual lines to outside lights, grills or other appliances must be installed a minimum of _______________ below finished grade, provided that such installation is approved and is installed in locations not susceptible to physical damage.
A. 8 inches, 12 inches
B. 12 inches, 8 inches
C. 12 inches, 12 inches
D. none of these
48. The joint between polypropylene plastic pipe and fittings require what type of connection seal.
A. a solvent cement joint
B. a mechanical joint
C. a thermalplastic solder joint
D. an elastomeric seal
49. Exterior water supply system piping may not be installed less than 6 inches below the frost line and not less than ______________________ below grade.
A. 6 inches
B. 12 inches
C. 24 inches
D. 48 inches
50. A type of backflow preventer installed on openings subject to normal atmospheric pressure that prevents backflow by admitting atmospheric pressure through ports to the discharge side of the device.
A. VACUUM BREAKER
B. YOKE VENT.
C. AIR BREAK
D. ASPIRATOR
51. What is the drainage fixture unit value for a 1-1/2 inch fixture drain?
A. 1 drainage fixture unit
B. 2 drainage fixture units
C. 3 drainage fixture units
D. 4 drainage fixture units
52. On water closets and urinals, flush tanks equipped for manual flushing, the trap seal to the fixture must be _______________ refilled after each flushing.
A. manually
B. automatically
C. partially
D. none of these
53. Pipe and pipe fittings, including valves and faucets, utilized in the water supply system may not have more than ______________ lead content.
A. .08-percent
B. 2-percent
C. 4-percent
D. 8-percent
E. no lead allowed
54. For fuel gas piping, the maximum support spacing for 1-1/2" steel pipe nominal run in a horizontal direction is _____________________.
A. 4 feet
B. 6 feet
C. 8 feet
D. 10 feet
55. A potable water supply system must be designed, installed and maintained in such a manner so as to prevent contamination from nonpotable liquids, solids or gases being introduced into the potable water supply through cross-connections or any other piping connections to the system. This is normally accomplished with the use of ___________.
A. backflow preventers
B. restrictive flow valves
C. a bimetal strip triggered check valve
D. none of these
56. Where a 3-inch (76 mm) bend is utilized on water closets, a _________________________ flange must be installed to receive the fixture horn.
A. 4-inch by 3-inch
B. 4-inch by 4-inch
C. 3-inch by 3-inch
D. 3-inch by 4-inch
57. What is the total hot water supply fixture units (wsfu) load value assigned in the International Plumbing Code for a private automatic dish washing machine?
A. 1.4 water supply fixture units (wsfu)
B. 1.0 water supply fixture units (wsfu)
C. 2.4 water supply fixture units (wsfu)
D. 3.0 water supply fixture units (wsfu)
58. The discharge piping serving a pressure relief valve, temperature relief valve or combination valve may ____________.
A. not be directly connected to the drainage system.
B. not discharge through an air gap located in the same room than the water heater.
C. not be larger than the diameter of the outlet of the valve served and shall discharge full size to the air gap.
D. serve a single relief device and shall connect to piping serving all other relief device or equipment.
59. Floor drains located within walk-in refrigerators or freezers in food service and food establishments must be _____________ connected to the sanitary drainage system by means of an __________.
A. directly, watertight connection
B. indirectly, air gap
C. permanently, wet trap
D. none of these, may not be connected
60. The capacity of a water supply line to a water supply tank 195 gpm. What is the diameter size in inches for an acceptable overflow pipe?
A. 3 inches
B. 4 inches
C. 5 inches
D. 6 inches
61. In mall buildings, the required public and employee toilet facilities must be located not more than one story above or below the space required to be provided with toilet facilities, and the path of travel to such facilities shall not exceed a distance of ______________________.
A. 100 feet
B. 1000 feet
C. 200 feet
D. 300 feet
62. The code official, upon notification from the permit holder or the permit holder’s agent, must make the following inspections and other inspections if necessary, and shall either release that portion of the construction or shall notify the permit holder or an agent of any violations that must be corrected.
A. underground inspection
B. rough-in inspection
C. final inspection
D. all of the above
E. none of the above
63. Water closets having a concealed trap seal or an unventilated space or having walls that are not thoroughly washed at each discharge are _____________________ .
A. installed in accordance with manufacturers instructions
B. prohibited
C. inspected annually
D. none of these
64. A fixture which is not listed in the code table for determining drainage fixture unit value, has a outlet drain size of 2 inches. What is the value to be used for the drainage fixture unit value of this fixture?
A. 1 drainage fixture unit
B. 2 drainage fixture units
C. 3 drainage fixture units
D. 4 drainage fixture units
E. 5 drainage fixture units
65. Tests gauges used for testing requiring a pressure of greater than 10 psi but less than or equal to 100 psi must utilize a testing gauge having increments of ____________________ or less.
A. 1 psi
B. 10 psi
C. 100 psi
D. .1 psi
66. Each water closet, urinal, clinical sink and any plumbing fixture that depends on _____________ to discharge the fixture contents to the drainage system must be provided with a flushometer valve, flushometer tank or a flush tank designed and installed to supply water in quantity and rate of flow to flush the contents of the fixture, cleanse the fixture and refill the fixture trap.
A. trap siphonage
B. gravity
C. overflow drainage
D. pressure differential