Building Information Modeling Building Information Modeling 4 — Questions and Answers
Question 1: Which of the following best describes 'parametric modeling' in BIM?
- Creating 2D CAD drawings linked to a database
- Building elements defined by rules and relationships that update automatically when parameters change (Correct answer)
- Importing point cloud data into a model
- Generating photorealistic renderings from a 3D model
Correct answer: Building elements defined by rules and relationships that update automatically when parameters change
Parametric modeling means that elements are governed by defined parameters and relationships, so changing one value automatically updates dependent elements.
Question 2: What is the role of a BIM Manager on a construction project?
- To perform all clash detection personally
- To oversee BIM standards, workflows, and model quality across all project disciplines (Correct answer)
- To manage the project budget using 5D tools
- To operate the laser scanning equipment
Correct answer: To oversee BIM standards, workflows, and model quality across all project disciplines
The BIM Manager ensures that all team members follow BIM standards, coordinates workflows, and maintains model quality and compliance with the BEP.
Question 3: In the context of BIM, what is 'point cloud data' most commonly used for?
- Generating cost estimates
- Capturing existing conditions of a building for renovation or as-built modeling (Correct answer)
- Simulating energy performance
- Creating 4D construction sequences
Correct answer: Capturing existing conditions of a building for renovation or as-built modeling
Point clouds, captured via laser scanning, provide precise 3D measurements of existing structures that can be imported into BIM software for reference.
Question 4: Which standard defines information delivery requirements (IDR) and model view definitions (MVD) for BIM?
- ISO 19650
- IFC schema (Correct answer)
- NBIMS-US
- COBie
Correct answer: IFC schema
The IFC schema and its associated Model View Definitions (MVDs) define what information must be included in a model for specific workflows or exchanges.
Question 5: What is COBie and what is it primarily used for?
- A clash detection software
- A data schema for capturing and delivering asset information for facilities management (Correct answer)
- A rendering engine for BIM visualization
- A BIM authoring platform
Correct answer: A data schema for capturing and delivering asset information for facilities management
COBie (Construction Operations Building information exchange) is a spreadsheet-based data format for transferring equipment and space information to building owners for FM use.
Question 6: What is the meaning of 'BIM Level 2' as defined by the UK BIM framework?
- All design is done in a single integrated 3D model
- Collaborative working where discipline-specific 3D models are shared but not necessarily fully integrated (Correct answer)
- Only 2D drawings with linked data
- Full real-time collaborative model editing by all parties
Correct answer: Collaborative working where discipline-specific 3D models are shared but not necessarily fully integrated
BIM Level 2 requires team members to work in their own 3D models that are shared and coordinated, but not necessarily merged into a single model.
Question 7: Which Autodesk software is primarily used for multi-discipline clash detection and 4D simulation?
- Revit
- AutoCAD
- Navisworks (Correct answer)
- Civil 3D
Correct answer: Navisworks
Autodesk Navisworks is a project review tool used for model aggregation, clash detection, 4D construction simulation, and project visualization.
Building Information Modeling Building Information Modeling 4
Which of the following best describes 'parametric modeling' in BIM?