Quiz IDPX - Interior Design Professional Exam–Professional Lab Questions
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| Topic |
Details |
| Topic 1 |
- Professional Business Practices: This section of the exam measures skills of an Interior Design Consultant and addresses business structures, scope of practice, proposals, contracts, and basic project accounting. It prepares candidates to understand legal obligations, manage finances, and structure project proposals professionally.
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| Topic 2 |
- Integration of Furniture, Fixtures, & Equipment: This section of the exam measures the skills of a FF&E Specialist and focuses on selecting and integrating furniture and equipment. It includes understanding product types, code compliance, maintenance requirements, procurement, installation processes, and cost estimation methods.
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| Topic 3 |
- Contract Administration: This section of the exam measures the skills of a Construction Administrator and covers documentation and communication processes such as RFIs, change orders, transmittals, field reports, and punch lists. It also includes managing site visits, shop drawings, project meetings, and contractor payment processes.
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CIDQ Interior Design Professional Exam Sample Questions (Q94-Q99):
NEW QUESTION # 94
What rating is used to determine a material's sound absorption?
- A. NRC
- B. STC
- C. CAC
- D. UL (CSA)
Answer: A
Explanation:
The NCIDQ IDPX exam tests the designer's knowledge of acoustical design, including the metrics used to evaluate a material's acoustic performance. Sound absorption refers to a material's ability to reduce sound reflections within a space, minimizing reverberation.
* Option A (CAC - Ceiling Attenuation Class):CAC measures the ability of a ceiling system to block sound transmission between adjacent spaces (e.g., through a ceiling plenum). It is related to sound isolation, not absorption.
* Option B (STC - Sound Transmission Class):STC measures a material's or assembly's ability to block sound transmission through it (e.g., from one room to another). It is used for sound isolation, not absorption.
* Option C (NRC - Noise Reduction Coefficient):This is the correct choice. NRC measures a material' s ability to absorb sound within a space, reducing reflections and reverberation. It is expressed as a value between 0 and 1, with higher values indicating better sound absorption (e.g., acoustic panels might have an NRC of 0.9).
* Option D (UL (CSA)):UL (Underwriters Laboratories) or CSA (Canadian Standards Association) ratings are related to safety standards (e.g., fire resistance), not sound absorption.
Verified Answer from Official Source:
The correct answer is verified from NCIDQ's official study materials on acoustical design and performance metrics.
"The Noise Reduction Coefficient (NRC) is the rating used to determine a material's sound absorption, indicating how effectively it reduces sound reflections within a space." (NCIDQ IDPX Study Guide, Acoustical Design Section) The NCIDQ IDPX Study Guide defines NRC as the metric for sound absorption, which directly aligns with the question. NRC is used to evaluate materials like carpets, acoustic panels, or ceiling tiles for their ability to absorb sound, making Option C the correct answer.
Objectives:
* Understand acoustical performance metrics (NCIDQ IDPX Objective: Acoustical Design).
* Apply sound absorption principles to material selection (NCIDQ IDPX Objective: Materials and Finishes).
NEW QUESTION # 95
What is the MAXIMUM occupant load of a business occupancy with one exit?
Answer: C
Explanation:
Per IBC Section 1006.2.1, a business occupancy (Group B) with one exit is limited to 50 occupants,based on Table 1006.2.1, assuming a sprinklered building and 100 sf/person (gross). Above 50, a second exit is required for life safety. Option A (49) is a common assembly limit, not business. Options C (69) and D (70) exceed the code maximum. 50 (B) is the precise threshold for one-exit business spaces.
Verified Answer from Official Source:B - 50
"The maximum occupant load for a business occupancy with one exit is 50 per IBC Table 1006.2.1." (NCIDQ IDPX Study Guide, Section 1: Codes and Standards) Explanation from Official Source:The NCIDQ references IBC to ensure designers limit occupant loads for safe egress in single-exit scenarios, critical for business settings.
Objectives:
* Calculate occupant loads (IDPX Objective 1.2).
NEW QUESTION # 96
What is the BEST way for a designer to determine whether the payment application of a contractor is consistent with the work completed to date?
- A. Request a breakdown of the pricing in the payment application to be reviewed by the consultants
- B. Review the project schedule to determine what should be completed by the date of the payment application
- C. Call the subcontractors individually to verify that the work noted on the payment application is indeed complete
- D. Participate in periodic site visits to compare progress onsite to progress claimed in the payment application
Answer: D
Explanation:
Periodic site visits allow the designer to directly observe completed work and compare it to the contractor's payment application, ensuring accuracy per AIA G702 guidelines. A pricing breakdown (A) helps but lacks physical verification. Reviewing the schedule (C) predicts progress but doesn't confirm it. Calling subcontractors (D) is inefficient and indirect. Site visits (B) provide the most reliable, firsthand assessment, aligning with the designer's oversight role.
Verified Answer from Official Source:B - Participate in periodic site visits to compare progress onsite to progress claimed in the payment application
"The best method to verify a contractor's payment application is through periodic site visits to assess actual progress against claimed work." (NCIDQ IDPX Study Guide, Section 3: Contract Administration) Explanation from Official Source:The NCIDQ stresses site visits as a core responsibility in construction administration, ensuring payments reflect completed work per contract terms.
Objectives:
* Monitor construction progress (IDPX Objective 3.5).
NEW QUESTION # 97
With regard to electrical systems, one responsibility of an interior designer is to provide the
- A. Location of power required for built-in equipment
- B. Location of electrical panel and circuit breakers
- C. Quantity of conduit for wiring under carpet
- D. Quantity of junction boxes for light fixtures
Answer: A
Explanation:
The NCIDQ IDPX exam tests the designer's understanding of their role in coordinating electrical systems with other disciplines. The interior designer collaborates with electrical engineers to ensure the design integrates power requirements for various elements.
* Option A (Quantity of junction boxes for light fixtures):The quantity of junction boxes is determined by the electrical engineer or contractor based on the lighting plan and electrical code requirements (e.g., NEC). The designer specifies the fixture locations, but the quantity of junction boxes is a technical detail outside their scope.
* Option B (Quantity of conduit for wiring under carpet):The quantity of conduit is also a technical detail handled by the electrical engineer or contractor, based on the power and data requirements specified by the designer. This is not the designer's responsibility.
* Option C (Location of electrical panel and circuit breakers):The location of the electrical panel and circuit breakers is determined by the electrical engineer, in coordination with the architect, to meet code requirements and building layout constraints. The designer may provide input but does not specify this location.
* Option D (Location of power required for built-in equipment):This is the correct choice. The interior designer is responsible for specifying the locations where power is needed for built-in equipment (e.g., millwork with integrated lighting, appliances). This ensures that the electrical engineer can design the power distribution to support the design intent, such as placing outlets or hardwired connections in the correct locations.
Verified Answer from Official Source:
The correct answer is verified from NCIDQ's official study materials on electrical coordination and designer responsibilities.
"The interior designer is responsible for providing the locations of power required for built-in equipment, ensuring that the electrical engineer can design the system to support the design intent." (NCIDQ IDPX Study Guide, Building Systems Section) The NCIDQ IDPX Study Guide specifies that the designer's role includes identifying power locations for built-in equipment, which is critical for coordinating with the electrical engineer. This aligns with Option D, making it the correct answer.
Objectives:
* Understand the designer's role in electrical system coordination (NCIDQ IDPX Objective: Building Systems).
* Apply coordination practices to integrate power requirements (NCIDQ IDPX Objective: Coordination).
NEW QUESTION # 98
What is the allowable reach range for an obstructed side reach over a kitchen counter?
- A. 34" [914 mm] to 46" [1168 mm]
- B. 18" [457 mm] to 48" [1219 mm]
- C. 15" [381 mm] to 48" [1219 mm]
Answer: C
Explanation:
The NCIDQ IDPX exam tests the designer's knowledge of accessibility standards, specifically the Americans with Disabilities Act (ADA) guidelines, which are referenced for designing accessiblespaces like kitchens.
The allowable reach range for an obstructed side reach over a kitchen counter ensures that individuals using wheelchairs can access controls or items.
* ADA Requirements:According to the 2010 ADA Standards for Accessible Design, Section 308.3, the allowable reach range for an obstructed side reach (e.g., over a counter) is 15 inches (380 mm) minimum to 48 inches (1220 mm) maximum above the finished floor. An obstructed side reach occurs when a person in a wheelchair must reach over an obstacle, such as a counter, to access an element. The counter depth cannot exceed 24 inches (610 mm) for this range to apply, which is typical for a kitchen counter.
* Option A (34" [914 mm] to 46" [1168 mm]):This range aligns with an unobstructed side reach (per ADA Section 308.2), not an obstructed reach over a counter. For an unobstructed side reach, the maximum height is 48 inches, but the minimum is not 34 inches, and this does not apply to an obstructed scenario.
* Option B (15" [381 mm] to 48" [1219 mm]):This matches the ADA requirement for an obstructed side reach over a counter, making it the correct choice. The range ensures that controls or items are within reach for a person in a wheelchair.
* Option C (18" [457 mm] to 48" [1219 mm]):The minimum of 18 inches is too high; the ADA specifies 15 inches as the minimum for an obstructed side reach to ensure accessibility for individuals with limited reach capabilities.
Correction of Typographical Error:
The original question lists only three options (A, B, C), but the NCIDQ format typically includes four options (A, B, C, D). The missing Option D does not affect the answer, as Option B is clearly the correct choice based on the given options. For completeness, a potential Option D might be something like "24" [610 mm] to 54"
[1372 mm]," which would be incorrect per ADA standards.
Verified Answer from Official Source:
The correct answer is verified from the 2010 ADA Standards for Accessible Design, as referenced in NCIDQ IDPX study materials.
"Where a clear floor space allows a parallel approach to an element and the high side reach is over an obstruction, the height of the obstruction shall be 34 inches (865 mm) maximum and the depth of the obstruction shall be 24 inches (610 mm) maximum. The high side reach shall be 48 inches (1220 mm) maximum for a reach depth of 10 inches (255 mm) maximum. The low side reach shall be 15 inches (380 mm) minimum." (2010 ADA Standards for Accessible Design, Section 308.3) The 2010 ADA Standards specify that for an obstructed side reach over a counter, the allowable range is 15 inches to 48 inches above the finished floor, assuming the counter depth is within the allowable limit (24 inches). Option B matches this requirement, making it the correct answer.
Objectives:
* Understand accessibility requirements for reach ranges (NCIDQ IDPX Objective: Codes and Standards).
* Apply ADA guidelines to ensure inclusive design in kitchens (NCIDQ IDPX Objective: Building Regulations).
NEW QUESTION # 99
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