CIDQ Interior Design Fundamentals - IDFX Exam Questions [2026]

QUESTION NO: 1
How are the results of a Wyzenbeek test indicated on a textile label?

A. As resiliency B. As stain resistance C. As coefficient of friction D. As double rubs

Correct Answer: D

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QUESTION NO: 2
Which of the following testing standards would be applicable to a lounge chair being specified for a lobby?

A. Smolder resistance B. Methenamine pill C. Steiner tunnel D. Radiant panel

Correct Answer: A

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QUESTION NO: 3
What is the MINIMUM clear width for an accessible door opening?

A. 36 inches [914 mm] B. 30 inches [762 mm] C. 34 inches [864 mm] D. 32 inches [813 mm]

Correct Answer: D

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QUESTION NO: 4
The client has expressed a desire for a new space that supports a highly collaborative environment. Which aspect of the design is MOST important?

A. Acoustical wall finishes B. Integrated daylighting C. Furniture placement D. Ergonomic seating

Correct Answer: C

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QUESTION NO: 5
A designer is preparing a programming document for a tenant space. Which technique would BEST confirm that the available space is adequate for user needs?

A. Compare the program area to industry standards for occupancy type B. Equate the program area to the rentable area C. Compare the program area to the building utilization rate D. Equate the program area to the usable area

Correct Answer: D

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QUESTION NO: 6
What is the MOST important benefit when using an access flooring system?

A. To provide additional Impact Insulation Class (IIC) for spaces below B. To reduce the amount of HVAC ducts in the overhead space C. To provide additional cooling to devices located below the floor D. To allow for cabling and FF&E flexibility over time

Correct Answer: D

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QUESTION NO: 7
What is the most important reason to pursue licensing and/or title registration?

A. Meet jurisdiction requirements B. Expand job opportunities C. Justify fee increases D. Improve insurability

Correct Answer: A

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QUESTION NO: 8
A client occupies eight floors in a high-rise office building and requires a typical wall-hung display cabinet in each elevator lobby. What is the maximum allowable projection that can be specified?

A. 4" [100 mm] B. 3" [75 mm] C. 7" [180 mm] D. 6" [150 mm]

Correct Answer: A

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QUESTION NO: 9
The laws of perception, proximity, closure, continuity, and similarity are part of which theory?

A. Gestalt B. Integration C. Maslow's D. Third place

Correct Answer: A

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