53. Subslab soil exhaust system ducts must extend through the roof and terminate at least ___________________ above the roof and at least 10 feet (3048 mm) from any operable openings or air intake.

A. 6 inches (152 mm)

B. 8 feet (2432 mm)

C. 5 feet (1524 mm)

D. 10 feet (3048 mm)

54. Ceiling radiation dampers must be tested as part of a fire-resistance-rated floor/ceiling or roof/ceiling assembly in accordance with ASTM E 119 or UL 263. Ceiling radiation dampers must be installed in accordance with the details listed in the fire-resistance-rated assembly and the manufacturer’s installation instructions and the listing. Ceiling radiation dampers are not required where which of the following applies:

A. Tests in accordance withASTME119 or UL 263 have shown that ceiling radiation dampers are not necessary in order to maintain the fire-resistance rating of the assembly.

B. Where exhaust duct penetrations are protected in accordance with Section 713.4.1.2 of the International Building Code and the exhaust ducts are located within the cavity of a wall, and do not pass through another dwelling unit or tenant space.

C. Neither A nor B

D. Either A or B

55. An upblast fan serving Type I hoods and installed in a vertical must be hinged and supplied with a flexible weatherproof electrical cable to permit inspection and cleaning. The ductwork must extend a minimum of ________________________ above the roof surface.

A. 6 inches (152 mm)

B. 12 inches (305 mm)

C. 18 inches (457 mm)

D. 24 inches (609 mm)

56. The cutting, notching and boring of holes in structural steel framing members must be as prescribed by the ___________________________________.

A. registered design professional

B. owner

C. building official

D. none of these

57. Where a code provision is less restrictive than the conditions of the listing of the equipment or appliance or the manufacturer’s installation instructions, the ______ must apply. Exceptions ignored.

A. conditions of the listing and the manufacturer’s installation instructions

B. code

58. 918.6 Prohibited sources. Outdoor or return air for a forced-air heating and cooling systems must not be taken from: Exceptions ignored.

A. a closet

B. a bathroom

C. a toilet room

D. a kitchen, garage, mechanical room, boiler room or furnace room or unconditioned attic

E. any of these

59. Flexible air ducts are not be limited in length.

A. True

B. False

60. Mechanical systems that are a part of buildings or structures moved into or within the jurisdiction do not need to comply with the provisions of this code for new installations. Exceptions ignored.

A. True

B. False

61. Ducts discharging combustible material directly into any _______________________ must conform to the requirements of NFPA 82.

A. storage container

B. holding tank

C. combustion chamber

D. any of these

62. The use of gypsum boards to form air shafts (ducts) must be limited to return air systems where the air temperatures do not exceed 125ºF (52ºC) and the gypsum board surface temperature is maintained above the __________________temperature.

A. ambient room temperature

B. outside temperature

C. inside temperature

D. airstream dew-point

63. The high-pressure gas equation is for sizing pipe in gas systems with a pressure of _____________ or less.

A. 1.5 psi

B. 3.0 psi

C. 10.5 psi

D. 20 psi

E. none of the above

64. A gas-tight joint obtained by the joining of metal parts with metallic mixtures or alloys which melt at a temperature above 1,000ºF (538ºC), but lower than the melting temperature of the parts to be joined.

A. solder joint

B. weld joint

C. brazed joint

D. fused joint