Iran Nezam Mechanical Design Exam study guide
Iran Nezam Mechanical Design Exam · Work through your exam, one topic at a time.
The Iran Nezam Mechanical Design Exam (آزمون نظام مهندسی مکانیک - طراحی) is the professional competency assessment that candidates in the design (طراحی) discipline of mechanical engineering sit as part of the process toward a Nezam Engineering license issued under the Iranian construction professional regulatory framework. It is aimed at mechanical engineers who intend to take professional responsibility for the design of building mechanical systems - HVAC, piping and plumbing, fire protection, energy systems - as well as machine and component design work covered by the syllabus. The Iran Nezam Mechanical Design Exam study guide has 9 sections and about 2,931 words.
01Mechanical Engineering Fundamentals and Applied Mathematics
The fundamentals block of the Iran Nezam mechanical design exam tests the arithmetic layer that every later domain silently assumes: unit discipline, mathematical modelling, and clean numerical work. Questions here are short but unforgiving - one unit slip converts a correct method into a wrong answer, and there is rarely part credit.
330 words, about 2 min02Engineering Mechanics (Statics, Dynamics, Strength of Materials)
Engineering mechanics on the Nezam paper mixes three habits of thought: free-body equilibrium, kinematics and kinetics of moving bodies, and stress–strain reasoning inside members. The exam rarely asks for a full mechanism analysis; it asks whether you can set up the diagram correctly and carry one clean calculation to the end.
364 words, about 2 min03Fluid Mechanics and Fluid Machinery
This domain checks whether you can move between the energy equation, friction losses and pump or fan behaviour. Typical Nezam items give a pipe run, a flow rate and a roughness or friction factor and ask for head loss, pump head, or the effect of a speed change.
315 words, about 2 min04Thermodynamics, Heat Transfer, and Energy Systems
The energy block tests first and second law reasoning, power and refrigeration cycles, and the three heat transfer modes. Nezam items are usually one-step: an efficiency, a heat rate, a wall conductance, or a heat exchanger size.
312 words, about 2 min05HVAC and Building Mechanical Systems Design
HVAC questions ask you to size air and water systems from a load, and to justify the choice with psychrometrics. In the Iranian context the governing documents are Mabhas 14 (mechanical installations) and Mabhas 19 (energy efficiency), with ASHRAE methods used for load and duct calculation.
334 words, about 2 min06Machine Design and Mechanical Components
Machine design items test whether you can pick a failure criterion, apply the right correction factors, and then read a catalogue value correctly. Shafts, bearings, gears, belts, keys and bolted joints dominate.
340 words, about 2 min07Manufacturing Processes, Materials, and Welding
This domain asks you to connect a process to a material and a defect mode. Expect cutting-parameter arithmetic, weld process selection, heat treatment terminology and steel designation recognition.
304 words, about 2 min08Piping, Plumbing, and Fire Protection Systems
Piping questions combine hydraulic sizing with code minimums: pipe diameter from a flow or fixture-unit load, drainage slope, and sprinkler density. Mabhas 16 governs sanitary plumbing and Mabhas 3 governs fire protection.
313 words, about 2 min09Iranian Building Codes, Regulations, and Professional Practice
This section tests your command of the Iranian regulatory framework that governs a mechanical building design: who signs, who supervises, and which Mabhas sets each technical limit. The National Building Code (مقررات ملی ساختمان) is issued under the Ministry of Roads and Urban Development and organised as numbered Mabhas.
319 words, about 2 min