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Key Facts: Iran Nezam Architecture Supervision Exam Exam

60 Questions

Total Questions

INBR / MRUD

150 minutes

Time Limit

INBR

50 / 100

Passing Threshold (clause 6-4, 1405 instruction)

INBR

3 wrong = 1 right

Negative Marking Rule

INBR

Open-Book

Exam Delivery Mode

INBR

Grade 3

Initial License Grade Awarded

IRCEO

The Iran Nezam Architecture Supervision examination is a 150-minute open-book paper of 60 four-option multiple-choice questions, held nationwide under the Office of National Building Regulations. It assesses an architect's legal duties, construction site safety standards, building envelope inspections, and compliance with the Iranian National Building Regulations. Negative marking applies and the pass threshold is 50 out of 100. The official paper is in Persian; OpenExamPrep provides independent English-language practice questions for the same topics.

Sample Iran Nezam Architecture Supervision Exam Practice Questions

Try these sample questions to review concepts for the Iran Nezam Architecture Supervision Exam exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1During a site inspection under INBR Topic 4, the supervising architect discovers that the finished floor-to-ceiling clearance in a multi-story residential building's main living room measures 2.32 meters. What action must the supervising architect take?

A.Accept the dimension as compliant provided mechanical ventilation is installed in the living room

B.Approve the clearance since the minimum acceptable tolerance under Topic 4 permits down to 2.30 meters

C.Issue a non-compliance report because the mandatory minimum ceiling clearance for habitable spaces is 2.40 meters

D.Refer the issue to the electrical supervisor to adjust lighting fixture depths instead of reporting a violation

Explanation: INBR Topic 4 (General Building Requirements) strictly mandates a minimum finished floor-to-ceiling clear height of 2.40 meters for all primary habitable rooms (living rooms, bedrooms). A height of 2.32 meters violates this requirement, and the supervising architect is legally required to record the deficiency and issue a formal non-compliance notice to the contractor and municipality.

2Under INBR Topic 4, what is the minimum required clear width for an escape stairway serving an apartment building with an occupant load of more than 50 persons?

A.0.80 meters

B.0.90 meters

C.1.40 meters

D.1.10 meters

Explanation: Under INBR Topic 4 and Topic 3, the minimum clear width for an egress stairway serving an occupant load exceeding 50 persons is 1.10 meters (110 cm), measured between finished wall surfaces or handrail projections within allowable limits. For occupant loads under 50 persons, 0.90 meters may be acceptable for certain private stairs.

3When inspecting a corridor that forms part of the main access route in a multi-unit residential building, what minimum useful width does INBR Topic 4 require?

A.1.20 meters

B.1.00 meter

C.1.40 meters

D.0.90 meters

Explanation: INBR Topic 4 sets 1.40 meters as the minimum useful width for corridors on the main access route. The code permits a reduction, as far as 0.90 meters, only in its defined exceptional cases such as a low occupant load or a route on which accessible access is not required. A supervising architect who accepts a narrower corridor without one of those grounds is signing off a non-compliance.

4According to INBR Topic 4, what is the minimum clear height required in underground parking garages measured from the finished floor to the lowest underside of beams or overhead ducts?

A.2.40 meters

B.2.20 meters

C.2.00 meters

D.1.90 meters

Explanation: INBR Topic 4 requires a minimum clear vertical clearance of 2.20 meters in private and public vehicular parking structures, measured to the lowest protruding element (such as concrete drop beams, suspended sprinkler pipes, or ventilation ducting). In small private parking spaces for fewer than three vehicles, 2.05m or 2.10m may apply in specialized zones, but 2.20m is the standard baseline.

5What is the mandatory minimum height for protective guardrails (balustrades) on balconies, open stairwells, and accessible roofs under INBR Topic 4?

A.1.10 meters

B.0.90 meters

C.1.25 meters

D.0.80 meters

Explanation: INBR Topic 4 requires protective parapets and guardrails on balconies, accessible flat roofs, and open stair landings where fall heights exceed 70 cm to have a minimum height of 1.10 meters (110 cm), with no climbable horizontal elements below 80 cm and no openings exceeding 10 cm.

6In a residential building governed by INBR Topic 4, a central light well (Patio) provides natural light and ventilation to living rooms across 6 stories. What is the minimum required floor area for this light well?

A.6 square meters with a minimum dimension of 2.0 meters

B.9 square meters with a minimum dimension of 2.5 meters

C.12 square meters with a minimum dimension of 3.0 meters

D.15 square meters with a minimum dimension of 4.0 meters

Explanation: Under INBR Topic 4, light wells providing daylight and natural ventilation to primary habitable rooms (living rooms, bedrooms) in buildings up to 6 stories must have a minimum area of 12 square meters and no horizontal dimension less than 3.0 meters. For secondary spaces (kitchens, bathrooms), an area of 6 m² with a minimum dimension of 2.0 m is required.

7When inspecting door installations under INBR Topic 4, what minimum useful clear width and minimum height apply to a main (principal) door?

A.1.00 meter wide and 2.20 meters high

B.0.80 meters wide and 2.00 meters high

C.1.20 meters wide and 2.40 meters high

D.0.90 meters wide and 2.05 meters high

Explanation: INBR Topic 4's requirements for entry, exit, circulation and access spaces fix the minimum useful width of a principal door at 0.90 meters and its minimum height at 2.05 meters. The 2.05-meter figure is the same clear height Topic 4 requires along a stair pitch line, which makes it easy to remember as a pair.

8Under INBR Topic 4, what is the maximum permissible opening between vertical balusters in a residential stair guardrail to prevent young children from falling through?

A.10 centimeters (100 mm)

B.15 centimeters (150 mm)

C.11 centimeters (110 mm)

D.8 centimeters (80 mm)

Explanation: INBR Topic 4 clause 4-9-9-1-2 states that the clear gap between two vertical balusters of a guardrail or parapet must not exceed 0.11 meters, and that where decorative railings are used, no part of them may allow a sphere of more than 0.11 meters diameter to pass. Topic 3 carries the same 11 cm figure. Topic 4 additionally requires the parapet to be detailed so children cannot climb it.

9During the inspection of exterior stone cladding on a building facade, what critical mechanical requirement must the supervising architect verify under INBR Topic 4 and Topic 5?

A.Facade stone may rely entirely on cement mortar adhesion if the building height is under 4 stories

B.Every piece of facade stone must be mechanically anchored (Oskoop) to the backing wall or structure

C.Mechanical wire ties are only required for polished granite, not for travertine or limestone

D.Oskoop anchoring is optional if polymer-modified adhesive mortar is applied continuously

Explanation: Under Iranian National Building Regulations (Topic 4, 5, and seismic safety guidelines), all exterior facade stone elements must be mechanically anchored (Oskoop-shodeh) using stainless steel or galvanized wire/ties into the mortar bed or structural backing. Pure adhesion without mechanical wire anchoring is strictly forbidden due to severe seismic detachment and life-safety hazards.

10What is the minimum required handrail height for an egress stairway under INBR Topic 4, measured vertically from the leading edge of the stair tread nosing?

A.80 centimeters

B.75 centimeters

C.105 centimeters

D.90 centimeters

Explanation: INBR Topic 4 specifies that stair handrails must be installed at a height between 85 cm and 90 cm (standard 90 cm) measured vertically from the sloped plane connecting the tread nosings.

About the Iran Nezam Architecture Supervision Exam Exam

The Iran Nezam Architecture Supervision exam is the official licensure assessment administered by the Ministry of Roads and Urban Development for architects seeking the supervision (Nezarat) practicing grade in the Construction Engineering Organization of Iran. Supervising architects ensure that construction projects strictly conform to approved architectural plans, building codes, and safety mandates.

Exam sponsor: Office of National Building Regulations and Building Control (inbr.ir), Ministry of Roads and Urban Development; delivered nationwide by the National Organization for Educational Testing (Sazman-e Sanjesh) educational services company. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

60 four-option multiple-choice questions covering National Building Regulations (Topics 1-12, 15, 18, 19, 22), construction safety, and supervising architect duties

Time Limit

150 minutes

Passing Score

50 out of 100 (50%) — clause 6-4 of the official 1405 registration instruction, calculated after the negative-marking deduction

Exam / Certification Fees

Set per sitting and shown in the inbr.ir registration cart; the official 1405 registration instruction does not publish a fixed amount

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

25%

General Building Requirements & Finishes (INBR Topic 4)

Dimensional verification of habitable rooms, ceiling clearances, corridors, doors, stairways, handrails, light courts, and architectural finishes

20%

Fire Safety Supervision (INBR Topic 3)

Supervising installation of fire-rated doors, smoke dampers, fire barriers, egress paths, exit signs, and fire-resistant materials

20%

Supervisory Duties & Administrative Procedures (INBR Topic 2)

Issuance of stage-by-stage inspection reports, defect notifications, stop-work orders, interaction with municipalities, and professional ethics

15%

Construction Safety & Site Protection (INBR Topic 12)

Fall protection, scaffolding safety, personal protective equipment, excavation perimeters, and protection of public roadways and neighbors

20%

Materials, Energy & Universal Accessibility (INBR Topics 5, 18, 19)

Testing and acceptance criteria for building materials, acoustic insulation verification, thermal envelope compliance, and accessible construction

Preparing for the Iran Nezam Architecture Supervision Exam Exam

What You Need to Know

Passing score: 50 out of 100 (50%) — clause 6-4 of the official 1405 registration instruction, calculated after the negative-marking deduction
Assessment: 60 four-option multiple-choice questions covering National Building Regulations (Topics 1-12, 15, 18, 19, 22), construction safety, and supervising architect duties
Time limit: 150 minutes
Exam / certification fees: Set per sitting and shown in the inbr.ir registration cart; the official 1405 registration instruction does not publish a fixed amount Official sources

Using Our Practice Resources

Work through all 100 available questions
Review every answer and explanation
Track weak areas and revisit them
Use our AI tutor for tough concepts

Iran Nezam Architecture Supervision Exam: Suggested Study Strategy

1Familiarize yourself thoroughly with the index and layout of INBR Topics 3, 4, and 12 for rapid lookup during the open-book exam

2Review the legal duties of supervising engineers under INBR Topic 2 and Article 34 of the Construction Engineering and Building Control Law

3Pay close attention to mandatory safety precautions in Topic 12, especially scaffolding guardrail heights, net specifications, and ladder angles

4Review material standard approvals and on-site testing requirements under Topic 5

5Practice negative-marking exam strategy: avoid wild guessing on unfamiliar questions to protect your net score

Frequently Asked Questions

What is the format of the Iran Nezam Architecture Supervision exam?

The examination consists of 60 four-option multiple-choice questions to be completed in 150 minutes. Clause 6-2 of the official 1405 registration instruction confirms the paper is held open book, so candidates may bring the Mabahes volumes and their own notes. Negative marking applies: three incorrect answers cancel one correct answer. The official paper is set in Persian.

What passing score is required for the Architecture Supervision exam?

Clause 6-4 of the official 1405 registration instruction sets the threshold at 50 out of 100 (50%) for every discipline and competency. Because three incorrect answers cancel one correct answer, a candidate who answers some questions wrongly needs more than 30 raw correct answers to reach the threshold. A pass is valid for up to 3 years toward the Grade 3 (Payeh 3) supervision practising licence, and other conditions such as provincial membership still apply.

What are the eligibility requirements for this exam?

Candidates must hold an approved degree in Architecture recognized by the Ministry of Science, Research and Technology. A minimum period of post-graduation practical work is mandatory: 3 years for Bachelor's degree holders, 2 years for Master's degree holders, and 1 year for doctoral graduates.

Which National Building Regulations (INBR) are covered in the supervision syllabus?

The core topics tested include Topic 1 (Definitions), Topic 2 (Administrative Systems), Topic 3 (Protection Against Fire), Topic 4 (General Building Requirements), Topic 5 (Building Materials), Topic 7 (Geotechnics), Topic 8 (Masonry), Topic 9 (Concrete), Topic 10 (Steel), Topic 11 (Industrial Construction), Topic 12 (Safety During Construction), Topic 15 (Elevators), Topic 18 (Acoustics), Topic 19 (Energy Saving), Topic 22 (Care and Maintenance), and disability accessibility regulations.

What is the primary role of a supervising architect under Iran's Construction Engineering Law?

The supervising architect (Mohandes-e Nazer-e Memari) is legally responsible for monitoring the continuous execution of architectural works on-site, ensuring absolute adherence to approved municipal drawings and National Building Regulations, issuing mandatory stage reports to the municipality and engineering organization, and ordering work stoppages when violations occur.