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2024 IRC—FLOOD-RESISTANT CONSTRUCTION QUIZ
1. According to Section R306.1, buildings located in multiple flood hazard areas must comply with:
A. The provisions of the least restrictive flood hazard area
B. The provisions of the most restrictive flood hazard area
C. The local jurisdiction's choice of flood hazard compliance
D. The builder's preference for construction methods
2. What is the minimum design flood elevation required by Section R306.1.4?
A. The base flood elevation (BFE) only
B. The design flood elevation from the community's adopted flood hazard map or the BFE, whichever is higher
C. A minimum of 2 feet above the base flood elevation
D. The lowest adjacent grade level
3. If design flood elevations are not specified, the building official may require:
A. The use of historic flood data only
B. The applicant to determine the design flood elevation using accepted engineering practices
C. No additional requirements
D. The installation of flood barriers in all structures
4. What is considered the lowest floor in flood hazard areas under Section R306.1.5?
A. The finished grade level
B. The lowest enclosed area, including basements, excluding specific flood-resistant enclosures
C. The top of the foundation footing
D. The first habitable floor above grade
5. Which of the following statements about the protection of mechanical, plumbing, and electrical systems in flood hazard areas is correct?
A. They must always be located above the base flood elevation
B. They can be installed below required elevation if designed to prevent water infiltration and resist flood loads
C. They can be placed anywhere if properly anchored
D. They are exempt from elevation requirements in residential buildings
6. In riverine flood hazard areas without designated floodways, the applicant must demonstrate that proposed structures:
A. Will not increase design flood elevations by more than 1 foot
B. Will maintain the pre-existing water flow conditions
C. Will comply only with local zoning ordinances
D. Will be constructed with flood-proof materials
7. According to Section R306.2, which flood hazard area designation is subject to wave heights between 1.5 and 3 feet?
A. Flood hazard zones
B. V Zones
C. Coastal A Zones
D. AO Zones
8. What is the required elevation for buildings in AO Zones under Section R306.2.1?
A. At least 1 foot above the highest adjacent grade or 3 feet if depth is not specified
B. At the same level as the adjacent grade
C. Only as required by the community’s floodplain administrator
D. Above the 500-year flood level
9. What is required for walls and partitions below the design flood elevation in coastal high-hazard areas?
A. They must be built with flood-resistant materials and withstand all flood forces
B. They must break away or collapse without damaging the elevated portion of the building
C. They must be permanently fixed and reinforced
D. They must be sealed with waterproof coatings
10. Which foundation type is typically prohibited in coastal high-hazard areas according to Section R306.3.3?
A. Pilings or columns
B. Spread footings or raft foundations if susceptible to scour or erosion
C. Anchored slab foundations
D. Deep pile foundations
1. According to Section R306.1, buildings located in multiple flood hazard areas must comply with:
A. The provisions of the least restrictive flood hazard area
B. The provisions of the most restrictive flood hazard area
C. The local jurisdiction's choice of flood hazard compliance
D. The builder's preference for construction methods
2. What is the minimum design flood elevation required by Section R306.1.4?
A. The base flood elevation (BFE) only
B. The design flood elevation from the community's adopted flood hazard map or the BFE, whichever is higher
C. A minimum of 2 feet above the base flood elevation
D. The lowest adjacent grade level
3. If design flood elevations are not specified, the building official may require:
A. The use of historic flood data only
B. The applicant to determine the design flood elevation using accepted engineering practices
C. No additional requirements
D. The installation of flood barriers in all structures
4. What is considered the lowest floor in flood hazard areas under Section R306.1.5?
A. The finished grade level
B. The lowest enclosed area, including basements, excluding specific flood-resistant enclosures
C. The top of the foundation footing
D. The first habitable floor above grade
5. Which of the following statements about the protection of mechanical, plumbing, and electrical systems in flood hazard areas is correct?
A. They must always be located above the base flood elevation
B. They can be installed below required elevation if designed to prevent water infiltration and resist flood loads
C. They can be placed anywhere if properly anchored
D. They are exempt from elevation requirements in residential buildings
6. In riverine flood hazard areas without designated floodways, the applicant must demonstrate that proposed structures:
A. Will not increase design flood elevations by more than 1 foot
B. Will maintain the pre-existing water flow conditions
C. Will comply only with local zoning ordinances
D. Will be constructed with flood-proof materials
7. According to Section R306.2, which flood hazard area designation is subject to wave heights between 1.5 and 3 feet?
A. Flood hazard zones
B. V Zones
C. Coastal A Zones
D. AO Zones
8. What is the required elevation for buildings in AO Zones under Section R306.2.1?
A. At least 1 foot above the highest adjacent grade or 3 feet if depth is not specified
B. At the same level as the adjacent grade
C. Only as required by the community’s floodplain administrator
D. Above the 500-year flood level
9. What is required for walls and partitions below the design flood elevation in coastal high-hazard areas?
A. They must be built with flood-resistant materials and withstand all flood forces
B. They must break away or collapse without damaging the elevated portion of the building
C. They must be permanently fixed and reinforced
D. They must be sealed with waterproof coatings
10. Which foundation type is typically prohibited in coastal high-hazard areas according to Section R306.3.3?
A. Pilings or columns
B. Spread footings or raft foundations if susceptible to scour or erosion
C. Anchored slab foundations
D. Deep pile foundations