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767-OH-GC 767 - Ohio Home Improvement Contractor Exam with Study Book, Exams of Technology

Technology

This exam is designed for individuals seeking licensure as Home Improvement Contractors in Ohio. It covers state regulations, contract law, business practices, construction standards, safety codes, and consumer protection laws applicable to home improvement projects. The study book provides detailed guidance on licensing requirements, project management, estimating, building codes, and ethical responsibilities. Candidates must demonstrate knowledge of Ohio’s home improvement statutes, permitting processes, dispute resolution, and proper contract execution. Passing this exam licenses contractors to legally perform home improvement services across Ohio, ensuring professionalism, safety, and consumer confidence.

Typology: Exams

2024/2025

Available from 05/26/2025

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767-OH-GC 767 Ohio Home Improvement Contractor
1
1. What is the primary purpose of a foundation in residential construction?
A. To provide aesthetic appeal to the building
B. To support the weight of the structure and distribute loads to the soil
C. To create space for plumbing and electrical systems
D. To facilitate easy access to the basement
Answer: B
Explanation: The primary purpose of a foundation is to support the weight of the building
and distribute its loads to the underlying soil, ensuring stability and preventing settlement.
2. What is frost depth and why is it important in foundation design?
A. The depth at which plants grow, important for landscaping.
B. The depth to which the ground freezes in winter, important to prevent frost heave.
C. The depth of water table in a region, important for drainage.
D. The depth of snow accumulation, important for roof design.
Answer: B
Explanation: Frost depth is the depth to which the ground freezes during winter. Foundation
footings must extend below this depth to prevent frost heave, which can cause the foundation
to shift or crack.
3. Which type of foundation is most commonly used for single-story residential
buildings on level ground?
A. Basement foundation
B. Crawl space foundation
C. Slab-on-grade foundation
D. Pier and beam foundation
Answer: C
Explanation: Slab-on-grade foundations are commonly used for single-story homes on level
ground. They consist of a concrete slab poured directly on the ground, providing a solid base
for the structure.
4. What is the minimum recommended depth for footings in Ohio to prevent frost
heave?
A. 12 inches
B. 18 inches
C. 24 inches
D. 36 inches
Answer: C
Explanation: In Ohio, footings should typically extend at least 24 inches below the ground
surface to reach below the frost line, thereby preventing frost heave.
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Download 767-OH-GC 767 - Ohio Home Improvement Contractor Exam with Study Book and more Exams Technology in PDF only on Docsity!

  1. What is the primary purpose of a foundation in residential construction? A. To provide aesthetic appeal to the building B. To support the weight of the structure and distribute loads to the soil C. To create space for plumbing and electrical systems D. To facilitate easy access to the basement Answer: B Explanation: The primary purpose of a foundation is to support the weight of the building and distribute its loads to the underlying soil, ensuring stability and preventing settlement.

  2. What is frost depth and why is it important in foundation design? A. The depth at which plants grow, important for landscaping. B. The depth to which the ground freezes in winter, important to prevent frost heave. C. The depth of water table in a region, important for drainage. D. The depth of snow accumulation, important for roof design. Answer: B Explanation: Frost depth is the depth to which the ground freezes during winter. Foundation footings must extend below this depth to prevent frost heave, which can cause the foundation to shift or crack.

  3. Which type of foundation is most commonly used for single-story residential buildings on level ground? A. Basement foundation B. Crawl space foundation C. Slab-on-grade foundation D. Pier and beam foundation Answer: C Explanation: Slab-on-grade foundations are commonly used for single-story homes on level ground. They consist of a concrete slab poured directly on the ground, providing a solid base for the structure.

  4. What is the minimum recommended depth for footings in Ohio to prevent frost heave? A. 12 inches B. 18 inches C. 24 inches D. 36 inches Answer: C Explanation: In Ohio, footings should typically extend at least 24 inches below the ground surface to reach below the frost line, thereby preventing frost heave.

  1. Which soil type has the highest bearing capacity for foundations? A. Clay B. Sandy soil C. Gravelly soil D. Peat Answer: C Explanation: Gravelly soil generally has a higher bearing capacity compared to clay or sandy soils, making it more suitable for supporting foundations.
  2. What is the primary function of footings in a foundation system? A. To insulate the building B. To provide a level surface for construction C. To transfer building loads to the soil D. To serve as a vapor barrier Answer: C Explanation: Footings transfer the building loads to the soil, ensuring that the structure remains stable and properly supported.
  3. Which of the following is NOT a type of foundation? A. Pier and beam B. Mat foundation C. Pile foundation D. Balloon foundation Answer: D Explanation: Balloon foundation is not a recognized standard type of foundation. Pier and beam, mat (raft) foundation, and pile foundations are standard types.
  4. What is a key advantage of a pier and beam foundation? A. It is the cheapest option available. B. It provides excellent insulation. C. It allows easy access to plumbing and electrical systems. D. It requires no excavation. Answer: C Explanation: A pier and beam foundation elevates the structure, allowing easy access to plumbing, electrical, and HVAC systems beneath the building.
  5. What is the typical thickness of a concrete footing for a residential foundation? A. 4 inches B. 6 inches C. 8 inches D. 10 inches
  1. What is the typical width of a footing for a load-bearing wall in a residential foundation? A. 8 inches B. 12 inches C. 16 inches D. 24 inches Answer: C Explanation: The typical width for a footing under a load-bearing wall is about 16 inches, but it may vary based on load requirements and soil conditions.
  2. How does soil compaction affect foundation stability? A. Less compaction increases stability. B. Greater compaction reduces settlement and increases stability. C. Soil compaction has no effect on foundation stability. D. Compacted soil is more prone to shifting. Answer: B Explanation: Greater soil compaction reduces settlement and increases the stability of the foundation by providing a denser and more uniform base.
  3. What is a grade beam in foundation construction? A. A horizontal concrete beam at the top of the foundation walls. B. A vertical support in the foundation. C. The ground level surface of the foundation. D. A type of insulation used in foundations. Answer: A Explanation: A grade beam is a horizontal concrete beam that sits at the top of the foundation walls, providing additional support and distributing loads evenly.
  4. What is the typical minimum concrete strength for residential footings? A. 2500 psi B. 3000 psi C. 3500 psi D. 4000 psi Answer: B Explanation: The minimum recommended concrete strength for residential footings is typically 3000 psi, providing sufficient strength for structural support.
  5. What is the term for the upward movement of soil during freezing conditions that can affect foundations? A. Soil creep B. Frost heave

C. Settlement D. Soil liquefaction Answer: B Explanation: Frost heave is the upward movement of soil caused by the freezing of water in the ground, which can lift and damage foundations.

  1. Which foundation type is most suitable for areas prone to flooding? A. Basement foundation B. Slab-on-grade foundation C. Elevated pier and beam foundation D. Mat foundation Answer: C Explanation: An elevated pier and beam foundation is suitable for flood-prone areas as it raises the structure above ground level, reducing the risk of flood damage.
  2. What is the primary difference between a footing and a foundation wall? A. Footings are above ground, walls are below. B. Footings support the foundation walls, which in turn support the structure. C. Footings are made of wood, walls are concrete. D. There is no difference; they are the same. Answer: B Explanation: Footings are the concrete base that support the foundation walls, which then support the building structure.
  3. In foundation design, what does "bearing capacity" refer to? A. The ability of soil to hold water. B. The maximum load the soil can support without failure. C. The depth at which soil freezes. D. The compressive strength of concrete. Answer: B Explanation: Bearing capacity refers to the maximum load that the soil can support without experiencing shear failure or excessive settlement, critical in foundation design.
  4. What is a common method to improve poor soil conditions for foundation support? A. Adding more water to the soil B. Removing and replacing with better soil C. Ignoring soil conditions in design D. Using larger foundation beams Answer: B Explanation: A common method to improve poor soil conditions is to remove the unsuitable soil and replace it with soil that has better bearing capacity and stability.

C. To insulate the foundation D. To provide drainage around the foundation Answer: B Explanation: A grade beam acts as a horizontal support that connects piers or footings, distributing loads evenly across the foundation.

  1. What is the standard depth of a basement foundation wall in Ohio? A. 4 feet B. 6 feet C. 8 feet D. 10 feet Answer: C Explanation: The standard depth for a basement foundation wall in Ohio is typically 8 feet, but this can vary based on specific building requirements.
  2. Which of the following is essential to prevent water intrusion in foundation walls? A. Painting the walls with regular paint B. Installing proper drainage and waterproofing C. Using thinner concrete walls D. Elevating the foundation above ground Answer: B Explanation: Proper drainage systems and waterproofing measures are essential to prevent water from infiltrating foundation walls, which can cause damage and moisture issues.
  3. What is "expansive soil," and why is it a concern for foundation design? A. Soil that absorbs water and shrinks when dry, causing settling. B. Soil that expands when wet and contracts when dry, causing movement. C. Soil that has high clay content and can expand and contract, leading to foundation movement. D. Soil that is highly fertile, attracting roots that can damage foundations. Answer: C Explanation: Expansive soil, often high in clay content, can expand when wet and contract when dry, causing significant movement that can affect foundation stability.
  4. What is the recommended method to ensure the proper alignment and levelness of foundation walls? A. Visual inspection only B. Using a string line and level during construction C. Allowing walls to settle naturally D. Using wooden planks as guides

Answer: B Explanation: Using a string line and level during construction ensures that foundation walls are properly aligned and level, which is crucial for the stability of the structure.

  1. What is the purpose of a damp-proof membrane in a foundation? A. To provide structural strength B. To prevent moisture from penetrating the foundation C. To enhance thermal insulation D. To increase aesthetic appeal Answer: B Explanation: A damp-proof membrane is installed to prevent moisture from penetrating the foundation, protecting the structure from dampness and potential water damage.
  2. Which tool is commonly used to compact soil before laying footings? A. Hammer B. Trowel C. Plate compactor D. Level Answer: C Explanation: A plate compactor is used to compact soil, ensuring a stable and dense base for laying footings and reducing the risk of future settlement.
  3. What is the main function of foundation insulation? A. To prevent frost heave B. To reduce heat loss through the foundation C. To add structural support D. To increase the foundation’s weight Answer: B Explanation: Foundation insulation is used to reduce heat loss through the foundation, improving the energy efficiency of the building and preventing cold floors.
  4. What is the purpose of a footing drain? A. To provide a pathway for electrical wiring B. To collect and redirect groundwater away from the foundation C. To support the foundation walls D. To insulate the footings Answer: B Explanation: A footing drain collects and redirects groundwater away from the foundation, preventing water accumulation and reducing hydrostatic pressure on the walls.

C. Measuring with a tape measure from one end to the other D. Visually inspecting the surface Answer: B Explanation: Using a laser level or similar precise tools ensures the foundation is level and meets the required specifications after the concrete is poured.

  1. What is a common consequence of excessive settlement on a building's foundation? A. Improved stability B. Structural damage, such as cracks in walls and floors C. Enhanced insulation D. Reduced maintenance costs Answer: B Explanation: Excessive settlement can lead to structural damage, including cracks in walls and floors, misalignment of doors and windows, and compromised structural integrity.
  2. Which of the following is a sign of a well-designed foundation? A. Visible gaps between walls and foundation B. Evenly spaced and straight foundation walls with no cracks C. Sloping floors D. Water pooling near the foundation Answer: B Explanation: A well-designed foundation will have evenly spaced, straight walls with no visible cracks, indicating stability and proper construction.
  3. What is the purpose of a sill plate in a foundation system? A. To insulate the foundation B. To provide a connection point between the foundation and the framing of the house C. To act as a waterproof barrier D. To reinforce the foundation walls Answer: B Explanation: A sill plate is a horizontal wooden board that sits on top of the foundation walls, providing a secure connection point for the framing of the house.
  4. How does concrete curing affect foundation strength? A. Faster curing increases strength. B. Proper curing ensures the concrete reaches its intended strength. C. Curing has no effect on concrete strength. D. Slower curing decreases strength. Answer: B Explanation: Proper curing of concrete allows it to hydrate fully, reaching its intended strength and ensuring the foundation performs as designed.
  1. What is a common method to detect foundation cracks? A. Thermal imaging B. Visual inspection C. Using a moisture meter D. Acoustic testing Answer: B Explanation: Visual inspection is the most common method to detect foundation cracks, allowing for assessment of their severity and potential impact on structural integrity.
  2. What is the typical minimum depth for a crawl space foundation? A. 12 inches B. 18 inches C. 24 inches D. 36 inches Answer: C Explanation: A crawl space foundation typically requires a minimum depth of 24 inches, allowing space for utilities and ventilation while keeping the structure elevated.
  3. Which of the following materials is NOT typically used for foundation waterproofing? A. Bituminous membranes B. Liquid-applied membranes C. Polyurethane coatings D. Wood siding Answer: D Explanation: Wood siding is not used for foundation waterproofing. Bituminous membranes, liquid-applied membranes, and polyurethane coatings are commonly used for this purpose.
  4. What is a key factor in selecting the type of foundation for a residential building? A. The color of the soil B. The height of the building C. Soil type and bearing capacity D. The age of the homeowner Answer: C Explanation: Soil type and bearing capacity are critical factors in selecting the appropriate foundation type, as they determine how well the soil can support the building's loads.
  5. In foundation terminology, what does "span" refer to? A. The distance between two footings B. The thickness of the foundation wall

Answer: B Explanation: A perimeter drain collects surface water and diverts it away from the foundation, preventing water accumulation and reducing hydrostatic pressure.

  1. What is the difference between a footing and a stem wall? A. Footings are above ground, stem walls are below. B. Footings are the base concrete, stem walls are the vertical extensions above the footings. C. Footings are made of wood, stem walls are concrete. D. There is no difference. Answer: B Explanation: Footings are the base concrete elements that spread the load, while stem walls are the vertical extensions built above the footings to support the foundation walls.
  2. What is the main purpose of a grade beam in a foundation? A. To provide a decorative finish B. To resist lateral forces and tie foundation walls together C. To serve as a drainage system D. To insulate the foundation Answer: B Explanation: Grade beams resist lateral forces and tie foundation walls together, enhancing the overall stability and structural integrity of the foundation system.
  3. In a slab-on-grade foundation, what is the typical method to prevent cracks due to concrete shrinkage? A. Increasing the concrete thickness B. Adding fibers to the concrete mix C. Installing control joints at regular intervals D. Using higher cement content Answer: C Explanation: Control joints are installed at regular intervals in a slab-on-grade foundation to create predetermined weak points, allowing the concrete to crack in a controlled manner and prevent random cracking.
  4. What is the main concern with using untreated wood in a pier and beam foundation? A. Increased cost B. Attraction of pests and potential rot C. Difficulty in installation D. Poor structural support Answer: B Explanation: Using untreated wood in a pier and beam foundation can lead to pest infestations and rot, compromising the structural integrity over time.
  1. Which of the following is NOT a typical component of a foundation system? A. Footings B. Foundation walls C. Roof trusses D. Sill plates Answer: C Explanation: Roof trusses are part of the roof system, not the foundation. Footings, foundation walls, and sill plates are typical foundation components.
  2. What is a spread footing? A. A deep foundation element B. A shallow foundation element that spreads the load over a large area C. A type of pile foundation D. A decorative element in foundations Answer: B Explanation: A spread footing is a shallow foundation element that spreads the load of a column or wall over a larger area, enhancing stability and load distribution.
  3. How does concrete quality affect foundation performance? A. Lower quality concrete improves flexibility. B. Higher quality concrete increases durability and load-bearing capacity. C. Concrete quality does not affect foundation performance. D. Lower quality concrete reduces cost without impact. Answer: B Explanation: Higher quality concrete with proper strength and durability enhances the foundation's load-bearing capacity and longevity, ensuring better performance.
  4. What is "sill flashing" used for in foundation construction? A. To connect foundation walls to the sill plate and prevent moisture intrusion B. To reinforce the foundation walls C. To provide thermal insulation D. To act as a decorative trim Answer: A Explanation: Sill flashing is used to connect foundation walls to the sill plate, providing a barrier that prevents moisture from penetrating between the foundation and the building.
  5. What role does rebar placement play in a reinforced concrete foundation? A. It acts as a waterproof barrier. B. It helps in the aesthetic finish of the foundation. C. Proper placement ensures maximum structural reinforcement and load distribution. D. It reduces the amount of concrete needed.
  1. How does the use of insulating concrete forms (ICFs) benefit foundation construction? A. They reduce the overall weight of the foundation. B. They provide integrated insulation, improving energy efficiency. C. They eliminate the need for rebar. D. They speed up the curing process of concrete. Answer: B Explanation: Insulating concrete forms (ICFs) integrate insulation into the foundation walls, enhancing energy efficiency by reducing thermal bridging and improving overall building insulation.
  2. What is the purpose of a vapor barrier in a crawl space foundation? A. To prevent moisture from entering the crawl space from the ground B. To add structural strength C. To provide insulation D. To allow air circulation Answer: A Explanation: A vapor barrier in a crawl space prevents moisture from entering from the ground, reducing humidity and preventing issues like mold and wood rot.
  3. What is a common consequence of inadequate drainage around a foundation? A. Increased insulation B. Reduced building height C. Hydrostatic pressure leading to foundation damage D. Enhanced soil stability Answer: C Explanation: Inadequate drainage can lead to hydrostatic pressure, which can damage foundation walls, cause cracking, and lead to moisture problems within the structure.
  4. Which of the following is a sign of water infiltration in a basement? A. Dry walls B. Musty odors and visible mold growth C. Evenly painted surfaces D. Smooth floors Answer: B Explanation: Musty odors and visible mold growth are common signs of water infiltration in a basement, indicating moisture issues that need to be addressed.
  5. What is "grade" in foundation terminology? A. The type of soil used B. The elevation of the ground surface relative to a reference point

C. The thickness of the foundation wall D. The slope of the roof Answer: B Explanation: "Grade" refers to the elevation of the ground surface relative to a reference point, important in determining how the foundation interacts with the surrounding soil and drainage.

  1. What is the typical slope of a foundation drainage ditch? A. 1% (1/8 inch per foot) B. 2% (1/4 inch per foot) C. 3% (3/8 inch per foot) D. 5% (5/8 inch per foot) Answer: B Explanation: A typical slope for a foundation drainage ditch is about 2%, or 1/4 inch per foot, to ensure proper water runoff away from the foundation.
  2. What is the benefit of using a reinforced concrete foundation over an unreinforced one? A. Lower cost B. Increased tensile strength and resistance to cracking C. Faster construction D. Easier to shape Answer: B Explanation: Reinforced concrete foundations have increased tensile strength and resistance to cracking due to the inclusion of steel rebar, enhancing overall structural integrity.
  3. What is the main function of a sump pump in relation to a foundation? A. To provide water supply to the basement B. To remove accumulated water from the sump basin, preventing flooding C. To add moisture to the crawl space D. To heat the foundation Answer: B Explanation: A sump pump removes accumulated water from the sump basin, preventing basement flooding and reducing hydrostatic pressure around the foundation.
  4. Which of the following is a method to reinforce foundation walls against lateral earth pressure? A. Using thinner walls B. Adding buttresses or reinforcement C. Reducing the depth of footings D. Increasing the height of walls without reinforcement
  1. What is the typical spacing for control joints in a concrete slab-on-grade? A. Every 4-6 feet B. Every 8-10 feet C. Every 12-15 feet D. Every 20 feet Answer: A Explanation: Control joints are typically spaced every 4-6 feet in a concrete slab-on-grade to allow for controlled cracking and reduce random cracking due to shrinkage or thermal movements.
  2. What is the main purpose of a foundation tie? A. To connect multiple foundation walls together B. To provide drainage C. To secure the foundation to the roof D. To insulate the foundation Answer: A Explanation: Foundation ties connect multiple foundation walls together, enhancing the overall structural integrity and ensuring that walls work together to resist loads and forces.
  3. What is "compaction" in the context of foundation preparation? A. Adding water to the soil B. Removing vegetation from the site C. Increasing soil density by mechanical means to improve stability D. Pouring concrete footings Answer: C Explanation: Compaction involves mechanically increasing the soil density, improving its stability and load-bearing capacity, which is essential for a stable foundation.
  4. Why is it important to have proper slope away from a foundation? A. To direct rainwater towards the building B. To prevent water from pooling near the foundation, reducing moisture issues C. To enhance the aesthetic of the building D. To make the property look larger Answer: B Explanation: Proper slope away from the foundation directs rainwater away from the building, preventing pooling and reducing the risk of moisture intrusion and foundation damage.
  5. What is the purpose of a foundation anchor rod? A. To provide electrical grounding B. To secure the framing of the building to the foundation

C. To add aesthetic detail D. To reinforce the concrete Answer: B Explanation: A foundation anchor rod secures the building's framing to the foundation, preventing movement and providing stability against wind and seismic forces.

  1. Which foundation type provides a full basement under the building? A. Slab-on-grade B. Pier and beam C. Basement foundation D. Mat foundation Answer: C Explanation: A basement foundation includes a full basement area under the building, providing additional space for utilities, storage, or living areas.
  2. How can soil stabilization be achieved for foundation support? A. By leaving the soil as is B. By mixing lime or cement into the soil C. By increasing the moisture content of the soil D. By removing all organic matter Answer: B Explanation: Soil stabilization can be achieved by mixing lime, cement, or other stabilizing agents into the soil, improving its load-bearing capacity and reducing potential for movement.
  3. What is the main function of a concrete foundation? A. To provide interior living space B. To act as a decorative element C. To support and anchor the structure, distributing loads to the ground D. To house plumbing systems Answer: C Explanation: The main function of a concrete foundation is to support and anchor the structure, distributing its loads to the ground and ensuring stability.
  4. What is "bearing soil"? A. Soil that resists compression B. Soil that cannot support any loads C. Soil with high moisture content D. Soil located at the surface level Answer: A Explanation: Bearing soil is soil that has sufficient strength and stability to support the loads imposed by a structure, resisting compression and maintaining structural integrity.