1.
Some building materials once thought to be safe can now create a health hazard in the home. The age of the home will often indicate the possibility of the presences of these materials. Which hazard would not be evident base on the age of the home?
Correct Answer
D. Radon
Explanation
The age of the home does not determine the presence of radon, as radon is a naturally occurring radioactive gas that can be found in any home, regardless of its age. Radon can seep into homes through cracks in the foundation or walls, and its presence cannot be determined based on the age of the home alone.
2.
The framework of a house must be strong enough to support both "live" and "dead" loads. Which of the following loads would be considered a "dead" load?
Correct Answer
A. Building materials
Explanation
"Dead" loads refer to the permanent or stationary loads that a structure must support, such as the weight of the building materials themselves, as they do not change over time. In contrast, "live" loads are temporary or transient loads that can change, such as the weight of people, furniture, or equipment inside the house. Earthquake, snow, and wind are considered "live" loads as they can vary in intensity and duration.
3.
Since basements are often used as inhabited spaces, a wet or damp basement can create many problems. Which method is considered the best solution for a dry basement?
Correct Answer
B. Permeable Mat
Explanation
A permeable mat is considered the best solution for a dry basement because it allows water to pass through it while preventing moisture from entering the basement. This helps to keep the basement dry and prevent issues such as mold, mildew, and water damage. Exterior stucco, inside waterproof paint, and tar paper/plastic on the exterior wall may provide some level of protection against moisture, but they are not as effective as a permeable mat in keeping the basement dry.
4.
Floor joists are often altered to accommodate pipes and wiring during new construction and remodeling. However, ther eare limitations to the size of holes allowed in floor joists. Which diameter holde is considered the maximum acceptable for a 2x10 joist?
Correct Answer
C. 2-1/2"
Explanation
Floor joists are often altered to accommodate pipes and wiring during construction and remodeling. However, there are limitations to the size of holes allowed in floor joists. The maximum acceptable diameter hole for a 2x10 joist is 2-1/2". This means that any hole larger than 2-1/2" would weaken the structural integrity of the joist and potentially compromise the stability of the floor above. Therefore, 2-1/2" is considered the maximum acceptable diameter for a hole in a 2x10 joist.
5.
Designer N is planning a new btah for a second floor bedroom. The floor was not designed to support the wight of the heavy cast iron bathtub she has specified for the rpoject. What would be the best and most cost effective method to add additional support for the bathtb?
Correct Answer
B. Add extra floor joists in the tub area
Explanation
Adding extra floor joists in the tub area would be the best and most cost-effective method to add additional support for the bathtub. This solution would distribute the weight of the heavy cast iron bathtub more evenly across the floor, preventing any structural damage. Adding two layers of 3/4" plywood or replacing the existing 2x10's with 2x12's could also provide additional support, but they may be more expensive and require more labor compared to adding extra floor joists. Placing steel "I" beams under the tub could be a viable option, but it may involve more complex structural modifications and potentially higher costs.
6.
The minimum distance between the ground and floor joists ina crawl space is
Correct Answer
B. 18"
Explanation
The minimum distance between the ground and floor joists in a crawl space is 18". This is because crawl spaces require a certain amount of clearance to allow for proper ventilation and access for maintenance and repairs. A height of 18" provides enough space for these requirements while still maintaining structural integrity and preventing moisture buildup.
7.
Designer R is adding an opening in a loadbearing wall. To maintain the strength of the wall, what should be placed over the opening?
Correct Answer
B. Double header
Explanation
To maintain the strength of a loadbearing wall when adding an opening, a double header should be placed over the opening. A double header consists of two pieces of lumber placed side by side, providing additional support and distributing the weight evenly across the opening. This helps to ensure that the loadbearing capacity of the wall is maintained and that it can continue to support the weight above it effectively.
8.
The most common wlal construction used in North America is
Correct Answer
B. Platform framing
Explanation
Platform framing is the most common wall construction used in North America. This method involves building the walls one level at a time, starting with the bottom plate on the foundation and adding studs, top plates, and headers as each level is completed. Platform framing is preferred because it is cost-effective, efficient, and allows for easy installation of insulation, electrical wiring, and plumbing. It also provides a strong and stable structure that can support the weight of the floors and roof.
9.
Designer B is planning a bath project for her client. To eliminate unforeseen problems involving the plumbing system in this older home, which action would be the most effective in avoiding cost overruns?
Correct Answer
C. A thorough inspection of the home
Explanation
A thorough inspection of the home would be the most effective action in avoiding cost overruns. By conducting a thorough inspection, the designer can identify any potential issues with the plumbing system in the older home. This will allow them to address these problems before starting the project, avoiding any unexpected costs that may arise during the construction process. The inspection will provide valuable information about the condition of the plumbing system, enabling the designer to plan and budget accordingly.
10.
What is the best definition for "bird pecks" found in some wood species?
Correct Answer
B. Brown to blackish hole created by woodpeckers, common in hickory or maple
Explanation
Bird pecks are brown to blackish holes that are created by woodpeckers. These pecks are commonly found in wood species like hickory or maple.
11.
The minimum service entrance permitted by most codes is:
Correct Answer
D. 100 amp with 240-volts
Explanation
The minimum service entrance permitted by most codes is 100 amp with 240 volts. This means that the electrical service coming into a building must have a capacity of at least 100 amps and a voltage of 240 volts. This ensures that there is enough power to meet the electrical needs of the building without overloading the system.
12.
Many electrical appliances and fixtures require dedicated circuits. Which one of the following does not require a dedicated circuit?
Correct Answer
D. 21" color tv
Explanation
A 21" color TV does not require a dedicated circuit. While many electrical appliances and fixtures, such as built-in microwaves and dishwashers, require their own dedicated circuits to ensure they have enough power and to prevent overloading, a 21" color TV does not have the same power requirements. It can typically be plugged into a regular outlet without the need for a dedicated circuit.
13.
Dimmer switches should not be connected to which of the following?
Correct Answer
C. Receptacle at bedroom nightstand
Explanation
Dimmer switches should not be connected to a receptacle at a bedroom nightstand because dimmer switches are designed to control the brightness of light fixtures, not to control the power supply to outlets. Connecting a dimmer switch to a receptacle could cause damage to the switch, the outlet, or any devices plugged into the outlet.
14.
Which is thebest definition of lumens
Correct Answer
A. Measures the lighting intensity
Explanation
Lumens is the unit of measurement used to quantify the amount of light emitted by a source. It measures the lighting intensity, indicating the brightness or level of illumination provided by a light source.
15.
The initials CRI are improtant to the designer when working with lighting particularly with fluorescent lamps. Which of the follwing describes CRI?
Correct Answer
D. Color Rendering Index
Explanation
The correct answer is Color Rendering Index (CRI). CRI is a measurement of how accurately a light source can reproduce the colors of objects compared to a natural light source. It is particularly important for designers working with lighting, especially fluorescent lamps, as it helps them assess the quality of light and its ability to accurately render colors.
16.
Which is part of the plumbing D/W/V system?
Correct Answer
D. Wyes
Explanation
A wye is a type of fitting used in plumbing systems to join two pipes at a 45-degree angle. It is commonly used to redirect the flow of water or waste in a plumbing system. In this context, a wye is a part of the plumbing D/W/V (drain, waste, vent) system as it helps to connect different pipes and redirect the flow of water or waste in the desired direction.
17.
Which type of material should not be used for supply lines?
Correct Answer
D. Lead
Explanation
Lead should not be used for supply lines because it is a toxic material that can contaminate the water supply. It can leach into the water and pose serious health risks if consumed. Therefore, lead is not a suitable material for supply lines in order to ensure the safety and well-being of individuals using the water.
18.
Which one of th efollwoing does not require acces by an electrician, plumber or the homeowner after construction?
Correct Answer
A. Dielectric union
Explanation
A dielectric union is a type of fitting that is used to join pipes of different materials, specifically copper and steel. It is designed to prevent galvanic corrosion, which occurs when two dissimilar metals come into contact with each other. Unlike the other options listed, a dielectric union does not require any additional access or maintenance after construction. Once it is properly installed, it functions autonomously to protect the pipes from corrosion, without the need for intervention from an electrician, plumber, or homeowner.
19.
According to the NKBA what is the recommended minimum CFM rating when a range hood is against a wall?
Correct Answer
C. 150 CFM
Explanation
The NKBA recommends a minimum CFM rating of 150 when a range hood is against a wall. This is because a range hood against a wall may have limited ventilation and airflow, so a higher CFM rating is necessary to effectively remove smoke, odors, and grease from the cooking area. A higher CFM rating ensures better air circulation and prevents the buildup of heat and contaminants in the kitchen.
20.
Designer T is moving the kitchen sink to a new location. He has located the vent stack for the existing sink. What is the maximum distance he can move the sink (1-1/2"drain) from the exisiting vent stack without re-venting at the new sink location?
Correct Answer
D. 72"
Explanation
The maximum distance the sink can be moved from the existing vent stack without re-venting at the new sink location is 72". This is because the vent stack needs to be within a certain proximity to the drain in order to properly vent the plumbing system. Moving the sink any further than 72" would require re-venting at the new sink location to ensure proper ventilation.
21.
Which of the following best describes a cabinet with the nomenclature SB36
Correct Answer
B. Sink base with no drawers and floor(shelf) 36"w
Explanation
The correct answer is "sink base with no drawers and floor (shelf) 36"w." This is because the nomenclature SB36 indicates a sink base cabinet that is 36 inches wide and does not have any drawers. Instead, it has a floor or shelf for storage.
22.
Your client is interested in two of the cabinet lines you represent. One is a major stock manufacturer and the other is a well known brand of semi-custom cabinets. Which one of the follwoing best describes semi-custom cabinetry?
Correct Answer
D. Some modifications are possible with additional lead time
Explanation
Semi-custom cabinetry refers to a type of cabinet that allows for certain modifications to be made, but these modifications may require additional lead time. This means that the client can request specific changes to the cabinet design or features, but it may take longer for these modifications to be implemented compared to stock cabinets. This option highlights the flexibility and customization options available with semi-custom cabinetry.
23.
What is the most commonly used term for the boxed-in area above wall cabinets?
Correct Answer
D. Soffit
Explanation
The correct answer is "soffit". In the context of wall cabinets, a soffit refers to the boxed-in area above the cabinets. It is a common term used in construction and interior design to describe this architectural feature. The soffit is often used to conceal wiring, ventilation, or plumbing, and it can also be used as a decorative element in the kitchen or other areas of the house.
24.
What feature is unique to base kitchen cabinets designed for wheelchair use?
Correct Answer
D. The toekick is 9" high and 6" deep
Explanation
Base kitchen cabinets designed for wheelchair use have a unique feature where the toekick is 9" high and 6" deep. This allows for easier access and maneuverability for wheelchair users, as they can comfortably fit their feet underneath the cabinets while sitting in their wheelchair. This design feature ensures that wheelchair users can fully utilize the base cabinets without any hindrance or discomfort.
25.
The term "32mm" refers to which one of the following?
Correct Answer
B. The distance between holes used of drawer guides, hinges, etc
Explanation
The term "32mm" refers to the distance between holes used for drawer guides, hinges, etc. This measurement is commonly used in cabinet construction to ensure uniformity and compatibility between different components. It allows for easy interchangeability of hardware and ensures precise alignment during installation.
26.
One way to shorten the cycle time it takes from tear-out to job completion is to
Correct Answer
A. Schedule a pre-installation meeting on all jobs
Explanation
Scheduling a pre-installation meeting on all jobs can help shorten the cycle time from tear-out to job completion. This meeting allows for clear communication and understanding between the client, designers, and workers before the job starts. It helps to address any potential issues, clarify expectations, and ensure everyone is on the same page. By discussing the project in advance, any necessary changes or adjustments can be made early on, reducing the chances of delays or rework later in the process. This proactive approach can help streamline the workflow and increase efficiency, ultimately shortening the overall cycle time.
27.
Labels applied to some appliances help the customer select the appliance for their family based on energy usage. what is the name of this label?
Correct Answer
D. Energy guide
Explanation
The correct answer is "energy guide." This label helps customers select appliances for their family based on energy usage. It provides information about the energy efficiency of the appliance, allowing consumers to make more informed decisions and choose products that will help them save energy and reduce their electricity bills.
28.
Which one of the following ranges requires the designer to supply a cabinet trim piece complete the installation
Correct Answer
B. Drop-in
Explanation
A drop-in range is designed to fit into a specific cutout in a cabinet or countertop. Unlike freestanding or slide-in ranges, which have finished sides and back panels, a drop-in range requires a cabinet trim piece to complete the installation. This trim piece covers the gaps between the range and the surrounding cabinet or countertop, creating a seamless and finished look.
29.
Listed below are four comments about freestanding side-by-side refrigerator. which statement is false?
Correct Answer
A. Doors are reversible on most units
Explanation
The statement "doors are reversible on most units" is false.
30.
Which statement best describes the difference between cast iron sinks and enameled steel sinks?
Correct Answer
A. Enameled steel sinks are more likely to chip due to their flexibility
Explanation
Enameled steel sinks are more likely to chip due to their flexibility. This is because steel is a more flexible material compared to cast iron. The enamel coating on steel sinks can be prone to chipping or cracking when subjected to impact or heavy use. On the other hand, cast iron sinks are more durable and less likely to chip. They do not require a separate stainless steel rim for mounting, which is another difference between the two types of sinks. Additionally, the statement about good selection of color is unrelated to the difference between cast iron and enameled steel sinks.
31.
Clean up for the client will be easier with which type of sink mounting method
Correct Answer
A. Integral-bowl
Explanation
The integral-bowl sink mounting method would make clean up for the client easier because the sink and countertop are seamlessly fused together, eliminating any crevices or gaps where dirt and debris could accumulate. This makes it easier to wipe down and maintain cleanliness.
32.
Kitchen and bath faucets are available with many finish options. which material is considered to be the best for the body of the faucet?
Correct Answer
A. Brass
Explanation
Brass is considered to be the best material for the body of the faucet because it is highly durable, resistant to corrosion, and has a long lifespan. It is also a malleable material, making it easier to manufacture and shape into intricate designs. Brass faucets are known for their aesthetic appeal and ability to withstand heavy everyday use in kitchen and bathroom environments. Additionally, brass has antimicrobial properties, which helps to prevent the growth of bacteria and maintain a hygienic environment in the kitchen or bathroom.
33.
Drawers are convenient storage features in a kitchen. you are planning a 3DB18 with a reduced depth of 18". What is the total storage space for this cabinet?
Correct Answer
D. 81"
Explanation
18"wx18"D=324"/12"=27"x3(drawers)=81"
34.
The minimum clear opening of a doorway into a kitchen or bath should be
Correct Answer
B. 32" recommended, 34" for access standard
Explanation
The minimum clear opening of a doorway into a kitchen or bath should be 32" as recommended. However, for accessibility standards, it is recommended to have a clear opening of 34". This is likely because a wider doorway allows for easier access for individuals with mobility aids such as wheelchairs or walkers.
35.
Which statement is true concerning the "work triangle"
Correct Answer
C. The work triangle connects at the front of the cooking surface, refrigerator and sink
Explanation
The work triangle is a concept in kitchen design that suggests the most efficient layout for the three main work areas: the cooking surface, refrigerator, and sink. By connecting these three areas, it allows for easy movement and reduces the amount of time and effort required to complete tasks in the kitchen. This layout ensures that the essential components are within a convenient distance from each other, making it easier for the cook to navigate and work efficiently.
36.
Fillers are helpful to the designer in many circumstances. Which one of the following situations using stock cabinets would not normally require fillers?
Correct Answer
A. A filler placed between the dishwasher and base end panel
Explanation
A filler placed between the dishwasher and base end panel would not normally require fillers because the dishwasher is usually designed to fit perfectly between the base end panel and the adjacent cabinets. Therefore, there would be no need for additional fillers in this situation.
37.
Designer E's plan will locate the sink next to the refrigerator. To meet Kitchen Guideline #24, how many inches of countertop space are required between the sink and refrigerator when combining landing areas?
Correct Answer
A. 36"
Explanation
The correct answer is 36". According to Kitchen Guideline #24, there should be a minimum of 36 inches of countertop space required between the sink and refrigerator when combining landing areas. This space is necessary for tasks such as food preparation and placing items from the sink to the refrigerator.
38.
To meet IRC Code Requirements, NKBA Bath Guideline #5 states that the center of the sink bowl must be no less than _____ inches from a tall cabinet or wall
Correct Answer
C. 15"
Explanation
According to NKBA Bath Guideline #5, in order to meet IRC Code Requirements, the center of the sink bowl must be no less than 15 inches from a tall cabinet or wall. This spacing is necessary to ensure proper access and functionality of the sink, allowing enough room for the user to comfortably use the sink while also considering any potential obstructions from nearby cabinets or walls.
39.
What is the least desirable way to turn a corner in a base cabinet installation?
Correct Answer
D. Void the corner
Explanation
Voiding the corner is the least desirable way to turn a corner in a base cabinet installation. This means leaving the corner empty without installing any cabinet or storage solution. This is undesirable because it wastes valuable space and does not utilize the corner efficiently. It can also create an awkward and unfinished look in the kitchen or storage area.
40.
Designer H has planned a bathroom that includes an intersecting pattern in the shower repeating several rectangular shapes and a unique design in the tile flooring. What design pattern was she planning for the bathroom?
Correct Answer
A. Geometric
Explanation
The correct answer is geometric. The question states that the designer planned an intersecting pattern in the shower with rectangular shapes and a unique design in the tile flooring. This description suggests that the designer was intending to use geometric shapes and patterns in the bathroom design. Geometric patterns are characterized by repeating shapes and lines, which aligns with the description given in the question.
41.
When planning a turning radius for a universally accepted space, how much floor space is recommended?
Correct Answer
C. 60" of floor space
Explanation
When planning a turning radius for a universally accepted space, it is recommended to have 60" of floor space. This allows for enough room for individuals to comfortably maneuver and turn around without any restrictions or obstacles. Having this amount of floor space ensures that the area is accessible and usable for everyone, regardless of their mobility or physical limitations.
42.
What is the best description of "unity of design"
Correct Answer
A. All dissimilar items or elements of the space are visually tied together
Explanation
"Unity of design" refers to the concept of visually connecting all the different elements or items within a space. This means that despite their differences, these elements are brought together in a cohesive and harmonious way. It involves creating a sense of coherence and balance in the design, ensuring that all the elements work together to create a unified whole. This can be achieved through various techniques such as using consistent colors, materials, and style throughout the room. Ultimately, unity of design aims to create a visually pleasing and cohesive space.
43.
The suggested height for the grab bar in a shower is
Correct Answer
C. 33-36"
Explanation
The suggested height for the grab bar in a shower is 33-36" because this range provides optimal support and accessibility for individuals of varying heights and abilities. It allows for easy gripping and stability while standing or maneuvering in the shower. This height range also aligns with industry standards and guidelines for grab bar installation in bathrooms, ensuring safety and convenience for users.
44.
The "gold standard" for good design is that it will:
Correct Answer
D. Stand the "test of time"
Explanation
Good design is often considered timeless and enduring, meaning it remains relevant and visually appealing even as trends and tastes change over time. A design that stands the "test of time" is one that remains functional, aesthetically pleasing, and relevant for many years. It demonstrates a level of quality and craftsmanship that transcends temporary fads and remains desirable and appreciated by both the client and others who encounter it.
45.
You have retired early from your former job as a professor of interior design. You are ready to start your second career. You are very interested in the kitchen and bath design industry. After completing several kitchen and bath related courses you have decided on a home-based kitchen and bath design consulting service. A showroom and employees are not needed at this time. Which type of business would best meet your start up situation?
Correct Answer
C. Sole proprietorship
Explanation
A sole proprietorship would best meet the start-up situation described in the question. As a retired professor starting a home-based consulting service, a sole proprietorship allows for the easiest and most straightforward business structure. It offers simplicity in terms of ownership, management, and taxes. With no need for a showroom or employees at this time, a sole proprietorship allows the individual to have full control and make all decisions independently. It also offers the advantage of minimal legal requirements and lower start-up costs compared to other business types like partnerships or corporations.
46.
Using different types of lines can add interest to any kitchen or bath design. Which of the following lines is the most stable?
Correct Answer
D. Horizontal
Explanation
Horizontal lines are considered the most stable in design. They create a sense of stability and grounding, as they are parallel to the horizon. Horizontal lines are commonly found in the foundation of structures, such as floors and countertops, providing a solid and balanced feel. In kitchen and bath design, horizontal lines can be achieved through the placement of cabinets, countertops, or even tile patterns. This stability helps create a visually pleasing and harmonious space.
47.
Designer B needs to visually stretch out a small kitchen area. In order to visually increase the space whic of the following will work best?
Correct Answer
B. A long curved island with a light solid surface countertop
Explanation
A long curved island with a light solid surface countertop would work best to visually stretch out a small kitchen area. The curved shape of the island creates a sense of flow and movement, which can make the space feel larger. Additionally, the light color of the countertop reflects more light, making the area appear brighter and more open.
48.
The motif is an emphasis on architectural shapes, strong linear interest, unadorned structural material offering design detail. What is the theme?
Correct Answer
C. Urban contemporary
Explanation
The theme of the given description is "urban contemporary." This is because the description mentions an emphasis on architectural shapes, strong linear interest, and unadorned structural material, which are all characteristics commonly associated with contemporary urban design. The other options, such as arts and crafts, modern (euro style), and southwest, do not align with these specific design elements mentioned in the description.
49.
Which term best describes "period" as it reflects to design and styles?
Correct Answer
B. A particular time in history
Explanation
The term "period" in design and styles refers to a specific time in history. It represents a distinct era or timeframe characterized by certain design elements, aesthetics, and trends that were prevalent during that particular period. It helps to categorize and understand different design styles based on the historical context in which they originated.
50.
The interpretive drawings listed below are used by kitchen and bath designers. Each one of these has a specific use. Which one of the drawings can be scaled in width and height and is used for NKBA testing purposes?
Correct Answer
A. Elevation
Explanation
An elevation drawing is a two-dimensional representation of a wall or an object as seen from a specific viewpoint. It shows the vertical dimensions and proportions of the object, and it can be scaled in both width and height. Kitchen and bath designers use elevation drawings to illustrate the layout and design of cabinets, appliances, and fixtures. These drawings are essential for NKBA testing purposes as they accurately depict the spatial relationships and measurements of the elements in a design.