Idex California - Practice Quiz
This is a practice quiz for interior designers taking the "IDEX California" exam to become a Certified Interior Designer (CID) in the state of California.
This quiz uses sample questions from the IDEX Study Guide published by the California Council for Interior Design Certification (CCIDC). The questions are "retired" and will not appear on the actual IDEX exam. The IDEX exam is a 150 multiple choice question exam and is given twice a year - for the entire month of May, and the month of October.
Created by IDEXprep. Com, publisher of the IDEXPREP eGuide
Questions and Answers
- 1.
In lighting design, where are light reflectance and glare issues MOST important?
- A.
Offices
- B.
Restaurants
- C.
Bedrooms
- D.
Living Rooms
Correct Answer
A. OfficesExplanation
Light reflectance and glare issues are most important in offices because these spaces typically involve tasks that require high visual acuity, such as reading documents or working on a computer. Excessive glare can cause discomfort and eye strain, leading to reduced productivity and potential health issues. Additionally, proper light reflectance is crucial in offices to ensure sufficient illumination and minimize shadows, creating a comfortable and visually conducive environment for work.Rate this question:
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- 2.
For a nursery with full-time care of ten toddlers, what class (excluding exceptions) must wallcoverings be in corridors and exit ways?
- A.
Class I
- B.
Class I I
- C.
Class III
- D.
Class IV
Correct Answer
B. Class I IExplanation
The correct answer is Class II. In a nursery with full-time care of ten toddlers, the wallcoverings in corridors and exit ways must be in Class II. This classification is based on the fire resistance and smoke generation properties of the wallcoverings, ensuring the safety of the children and staff in case of a fire.Rate this question:
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- 3.
Which of the following should a designer attempt to specify on every “LEED” design project?
- A.
Sustainable materials.
- B.
Materials for cost.
- C.
Materials for style
- D.
Materials for safety.
Correct Answer
A. Sustainable materials.Explanation
A designer should attempt to specify sustainable materials on every "LEED" design project because LEED (Leadership in Energy and Environmental Design) is a green building certification program that promotes sustainable design and construction practices. By using sustainable materials, the designer can contribute to reducing the environmental impact of the project, conserving resources, and creating a healthier indoor environment.Rate this question:
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- 4.
Which test is used to measure flame spread in rated corridors?
- A.
Flame rating system.
- B.
Chamber test.
- C.
Steiner tunnel test.
- D.
Flooring radiant panel test.
Correct Answer
D. Flooring radiant panel test.Explanation
The correct answer is the Flooring radiant panel test. This test is used to measure flame spread in rated corridors. The Flooring radiant panel test involves placing a radiant panel on the floor and subjecting it to a controlled flame. The flame spread is then measured and rated based on specific criteria. This test is commonly used to assess the fire safety of flooring materials and determine their suitability for use in corridors.Rate this question:
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- 5.
Designers should allow a change order to be issued only upon the written approval by which of the following?
- A.
Building Official.
- B.
Client/Owner.
- C.
Subcontractor.
- D.
Contractor
Correct Answer
B. Client/Owner.Explanation
Designers should allow a change order to be issued only upon the written approval by the Client/Owner. This is because the Client/Owner is the ultimate decision-maker and has the authority to approve any changes to the project. By requiring written approval, it ensures that all parties are in agreement and there is a clear record of the change order. The Building Official, Subcontractor, and Contractor may have input or be involved in the change order process, but the final approval lies with the Client/Owner.Rate this question:
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- 6.
Which of the following is the purpose of the shop drawings in the administration of the compliance with the contract?
- A.
Offer the designer the opportunity to reconsider the design intent.
- B.
Allow the contractor to make substitutions.
- C.
Illustrate specific situations or details of the project.
- D.
Respond to plan check corrections.
Correct Answer
C. Illustrate specific situations or details of the project.Explanation
Shop drawings are detailed drawings created by the contractor or subcontractor that illustrate specific situations or details of the project. These drawings provide a visual representation of how certain elements of the project will be constructed or installed. They allow the contractor to communicate their intended methods and materials to the designer and other project stakeholders. Shop drawings are essential in ensuring that the project is built according to the design intent and specifications outlined in the contract. They help to identify any potential conflicts or issues before construction begins, allowing for adjustments or modifications to be made as necessary.Rate this question:
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- 7.
Which of the following should a designer do during the concept/ schematic design phase.
- A.
Create preliminary design decisions for client review.
- B.
Prepare set of CD’s and FF&E package.
- C.
Locate contractors that can complete the work.
- D.
Finalize all schedules and specifications.
Correct Answer
A. Create preliminary design decisions for client review.Explanation
During the concept/schematic design phase, a designer should create preliminary design decisions for client review. This involves developing initial design ideas and concepts based on the client's requirements and preferences. These preliminary decisions serve as a starting point for further discussions and revisions with the client before finalizing the design. It allows the designer to gather feedback and make necessary adjustments to ensure that the final design meets the client's expectations.Rate this question:
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- 8.
Your client has seen the work of another professional designer in a trade magazine and has asked you to duplicate it as closely as possible. In addition, your client has a limited budget and will not be able to afford the chairs and sofa that would need to be purchased from a well-known furniture manufacturer. You should:
- A.
Inform your client that you will need to find a local workroom that will duplicate the furniture pieces from photos supplied to you from
- B.
Add an addendum to your contract stating you will not be held liable for any copyright infringements.
- C.
Inform your client that it is against the professional designer's code of ethics to plagiarize another designer's work.
- D.
Ask the vendors if they provide special discounts.
Correct Answer
C. Inform your client that it is against the professional designer's code of ethics to plagiarize another designer's work.Explanation
The answer suggests that the professional designer should inform the client that it is against the professional designer's code of ethics to plagiarize another designer's work. This is the most appropriate response because plagiarism is unethical and goes against the principles of professional design. By informing the client about this, the designer upholds their professional integrity and encourages the client to consider original designs or alternative solutions within their limited budget.Rate this question:
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- 9.
In a type I or II commercial office building, what construction is allowed for non-load bearing interior partitions that do not establish a fire-rated corridor?
- A.
Untreated wood framing and 5/8" gypsum board
- B.
Steel framing and 5/8" gypsum board
- C.
Combustible framing with non-combustible materials applied to the framing
- D.
. Steel framing with 1/2" gypsum board
Correct Answer
B. Steel framing and 5/8" gypsum boardExplanation
In a type I or II commercial office building, non-load bearing interior partitions that do not establish a fire-rated corridor are allowed to be constructed using steel framing and 5/8" gypsum board. This combination provides a non-combustible and fire-resistant solution for the partitions, ensuring the safety of the building occupants.Rate this question:
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- 10.
What MINIMUM conservation features and devices are to be included for compliance with residential energy efficiency standards?
- A.
. Mandatory Measures Checklist
- B.
Shading Coefficient Worksheet
- C.
Energy Budget Point System
- D.
CEC system grid
Correct Answer
A. . Mandatory Measures ChecklistExplanation
The answer is "Mandatory Measures Checklist" because it is stated in the question that the features and devices need to be included for compliance with residential energy efficiency standards. The checklist would provide a list of mandatory measures that need to be implemented in order to meet these standards.Rate this question:
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- 11.
Which of the following is a common property of vinyl coated wall coverings manufactured for hospitality design?
- A.
Mildew resistance.
- B.
Toxic binders.
- C.
Transparent finishes.
- D.
Textural surfaces.
Correct Answer
A. Mildew resistance.Explanation
Vinyl coated wall coverings manufactured for hospitality design commonly possess mildew resistance. This means that they are designed to prevent the growth and spread of mildew, which is a common problem in humid environments. This property ensures that the wall coverings remain clean and hygienic, making them suitable for use in hospitality settings where cleanliness and durability are important factors.Rate this question:
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- 12.
Which of the following should designers AVOID when specifying paint, because of toxicity?
- A.
Volatile organic compounds.
- B.
Water-based resins.
- C.
Water-based thinners.
- D.
Water-based sealers.
Correct Answer
A. Volatile organic compounds.Explanation
Designers should avoid specifying volatile organic compounds (VOCs) when specifying paint because of their toxicity. VOCs are chemicals that can easily evaporate into the air at room temperature and can have harmful effects on human health. They can contribute to indoor air pollution and can cause respiratory problems, headaches, and other health issues. Therefore, designers should opt for paint options that have low or no VOC content to ensure a healthier indoor environment.Rate this question:
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- 13.
Which of the following would require construction documents to be prepared by a registered professional?
- A.
Residential remodel
- B.
Non-sprinklered building.
- C.
Artist-in-residence loft.
- D.
High-rise building project.
Correct Answer
D. High-rise building project.Explanation
A high-rise building project would require construction documents to be prepared by a registered professional because of the complexity and scale of the project. High-rise buildings have unique structural and safety considerations that require the expertise of a registered professional to ensure compliance with building codes and regulations. Residential remodels, non-sprinklered buildings, and artist-in-residence lofts may also require construction documents, but they may not necessarily need to be prepared by a registered professional.Rate this question:
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- 14.
Who prepares and submits shop drawings and samples for approval?
- A.
City inspector.
- B.
Designer.
- C.
Contractor.
- D.
Client.
Correct Answer
C. Contractor.Explanation
The contractor is responsible for preparing and submitting shop drawings and samples for approval. This is because the contractor is the one who is executing the construction project and is in charge of coordinating and managing the various aspects of the project, including the preparation and submission of necessary documents and samples for approval by the relevant authorities. The city inspector, designer, and client may have their respective roles and responsibilities in the project, but it is ultimately the contractor who takes the lead in this particular task.Rate this question:
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- 15.
Which of the following determines and rates the mildew resistance of wallpaper?
- A.
IBC
- B.
ASTM
- C.
NTMA
- D.
ANSI
Correct Answer
B. ASTMExplanation
ASTM (American Society for Testing and Materials) determines and rates the mildew resistance of wallpaper. ASTM is an international standards organization that develops and publishes technical standards for various materials, products, systems, and services. They have specific standards and test methods for evaluating the resistance of materials to mildew growth, including wallpaper. By following ASTM standards, manufacturers can ensure that their wallpaper meets the required level of resistance to mildew.Rate this question:
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- 16.
Which of the following are the FIRST considerations when developing a space plan?
- A.
Scale and proportion.
- B.
Codes and adjacencies.
- C.
Furnishings and arrangements.
- D.
Relationships and design.
Correct Answer
B. Codes and adjacencies.Explanation
When developing a space plan, the first considerations should be codes and adjacencies. Codes refer to the building regulations and requirements that need to be followed, such as fire safety codes or accessibility codes. Adjacencies refer to the relationships between different spaces and how they are arranged in relation to each other. These considerations are important because they establish the framework and limitations for the design process, ensuring that the space plan meets all necessary regulations and functions effectively.Rate this question:
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- 17.
If work does not commence, or if the project becomes abandoned, what period of time can elapse before the permit becomes null and void?
- A.
. 90 days
- B.
180 days
- C.
One year
- D.
120 days
Correct Answer
B. 180 daysExplanation
If work does not start or the project is abandoned, the permit will become null and void after a period of 180 days. This means that if no progress is made or the project is abandoned for more than 180 days, the permit will no longer be valid and the project will need to go through the permitting process again.Rate this question:
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- 18.
What must the exit doors for an accessible commercial establishment include?
- A.
A 5-inch plate on the door
- B.
An automatic self-locking assembly
- C.
A bottom 10-inch smooth, uninterrupted surface
- D.
Alarm-activity mechanism
Correct Answer
C. A bottom 10-inch smooth, uninterrupted surfaceExplanation
The exit doors for an accessible commercial establishment must include a bottom 10-inch smooth, uninterrupted surface. This is important because it allows for easy access and maneuverability for individuals with mobility devices such as wheelchairs or walkers. A smooth surface ensures that there are no obstacles or barriers that could hinder their movement. Additionally, an uninterrupted surface prevents tripping hazards and ensures a safe and accessible exit for all individuals.Rate this question:
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- 19.
Which form of light has the MOST positive effect on people’s health and well being?
- A.
Natural
- B.
Discharge
- C.
Full spectrum
- D.
Warm deluxe
Correct Answer
A. NaturalExplanation
The form of light that has the most positive effect on people's health and well-being is natural light. Natural light is the light that comes from the sun and is considered the most beneficial for our overall health. It provides essential vitamin D, boosts mood and productivity, regulates sleep patterns, and supports overall well-being. Natural light also helps to synchronize our internal body clock, known as the circadian rhythm, which is important for maintaining a healthy sleep-wake cycle.Rate this question:
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- 20.
What of the following would be considered an H-occupancy?
- A.
A factory with large quantities of flammable liquids
- B.
A theater with seating for more than 5,000 .
- C.
A maximum-security prison
- D.
A convalescent home
Correct Answer
A. A factory with large quantities of flammable liquidsExplanation
A factory with large quantities of flammable liquids would be considered an H-occupancy because it poses a higher risk of fire hazards due to the presence of flammable materials. H-occupancies are typically industrial or manufacturing facilities where hazardous materials are used or stored, and specific safety measures and regulations are required to ensure the protection of people and property from potential fire incidents.Rate this question:
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- 21.
Which of the following are associated with the principles of rhythm?
- A.
Gradation, repetition, transition, and progression.
- B.
Gradation, progression, repetition, and subordination.
- C.
Domination, gradation, transition, and progression.
- D.
Domination, subordination, repetition, and transition.
Correct Answer
A. Gradation, repetition, transition, and progression.Explanation
The principles of rhythm involve the elements of gradation, repetition, transition, and progression. Gradation refers to the gradual change or progression in elements such as size, color, or value. Repetition involves the use of repeated elements to create a sense of pattern or rhythm. Transition refers to the smooth and gradual change or movement between different elements or parts. Progression involves the gradual development or advancement of elements in a sequence.Rate this question:
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