Classes of Construction (Unit
4) questions and answers
(verified for accuracy)
Class 1- Frame - answer frame structures have outside support
walls, roof, and floors constructed of wood or other combustible
materials. The exterior walls may be covered with stucco or brick
veneer, and the interior walls are typically lath and plaster.
Class 2 - Joisted Masonry - answer Joisted masonry structures have
outside support walls made of noncombustible masonry materials
(such as concrete, brick, hollow concrete block, stone, or tile) and a
roof and floor made of combustible materials (such as wood)
Class 3- Non combustible - answer A noncombustible structure is
one whose exterior walls, floors, and roof are constructed of and
supported by noncombustible materials such as metal, asbestos, or
gypsum.
Class 4 - Masonry Noncombustible - answer Structures in this
construction class have exterior walls constructed of masonry
materials and a roof and floor made of metal or other non-
combustible materials.
Class 5 - Modified Fire Resistive - answer Buildings that are
modified fire resistive have exterior walls, floors and roof
constructed of masonry or fire resistive material with a fire
resistance rating of two hours or less.
Class 6 - Fire Resistive - answer These structures are constructed
of masonry or fire resistive material with a fire resistance rating of 2
hours or more
4) questions and answers
(verified for accuracy)
Class 1- Frame - answer frame structures have outside support
walls, roof, and floors constructed of wood or other combustible
materials. The exterior walls may be covered with stucco or brick
veneer, and the interior walls are typically lath and plaster.
Class 2 - Joisted Masonry - answer Joisted masonry structures have
outside support walls made of noncombustible masonry materials
(such as concrete, brick, hollow concrete block, stone, or tile) and a
roof and floor made of combustible materials (such as wood)
Class 3- Non combustible - answer A noncombustible structure is
one whose exterior walls, floors, and roof are constructed of and
supported by noncombustible materials such as metal, asbestos, or
gypsum.
Class 4 - Masonry Noncombustible - answer Structures in this
construction class have exterior walls constructed of masonry
materials and a roof and floor made of metal or other non-
combustible materials.
Class 5 - Modified Fire Resistive - answer Buildings that are
modified fire resistive have exterior walls, floors and roof
constructed of masonry or fire resistive material with a fire
resistance rating of two hours or less.
Class 6 - Fire Resistive - answer These structures are constructed
of masonry or fire resistive material with a fire resistance rating of 2
hours or more
