Mott MacDonald Interview Questions and Answers

Q1. Could you please provide your introduction?
Ans. 
I am an experienced Electrical BIM Modeler with a strong background in electrical design and building information modeling.
• Over 5 years of experience in electrical design and BIM modeling.

• Proficient in software like Revit, AutoCAD, and Navisworks.

• Worked on various projects including commercial buildings and residential complexes.

• Strong understanding of electrical systems, codes, and standards.

• Collaborated with multidis...read more
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Q2. What you know about Mott MacDonald? (Usually they provide brochure in the meeting email, from there you can grasp the answer of this question ,if not do search google/wikipedia)
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Q3. Will ask about your experience in project mentioned CV
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Q4. They gonna ask if you have experience in substation project or not.. Just answer (yes/no) acc to your experience
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Q5. They will ask if you are able to do architectural Modelling as well as structural Modelling Be honest about your answer .. They are checking your sincerety not overconfidence
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Q6. What is construction template and how it is different from other templates
Ans. 
A construction template standardizes BIM processes, ensuring consistency and efficiency in project execution.
• Defines project-specific standards and guidelines for BIM models.

• Includes layers, naming conventions, and file organization.

• Facilitates collaboration among different disciplines (e.g., electrical, mechanical).

• Example: A construction template may specify how electrical components are labeled and organized in the ...read more
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Q7. What is quantification ,Material take off and B.O.Q (Navisworks)
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Quantification involves measuring materials for construction, while B.O.Q is a detailed list of materials and costs.
• Quantification is the process of calculating the quantities of materials needed for a project.

• Material Take Off (MTO) refers to the detailed listing of materials extracted from the BIM model.

• B.O.Q (Bill of Quantities) is a document that itemizes materials, labor, and costs for a project.

• In Navisworks, qua...read more
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Q8. Navisworks different files NWC, NWF,NWD Difference between all these and their uses
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NWC, NWF, and NWD are file formats used in Autodesk Navisworks for different purposes in project collaboration and visualization.
• NWC (Navisworks Cache File): A lightweight file format used for importing and caching data from other software like Revit or AutoCAD.

• NWF (Navisworks Project File): A project file that references NWC files and allows users to manage and organize multiple models in a single project.

• NWD (Naviswo...read more
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Q9. Whole Process of creation ,working and using of Central file and what are worksets
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Central files and worksets in BIM facilitate collaborative project management and efficient workflow in electrical modeling.
• Central File: A master file that contains the complete project model, allowing multiple users to work on it simultaneously.

• Worksets: Divisions within the central file that allow teams to work on different parts of the project without interference.

• Example of Worksets: Electrical, Structural, and Ar...read more
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Q10. Different type of revit extensions
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Revit extensions enhance functionality, streamline workflows, and improve collaboration in BIM projects.
• 1. Autodesk App Store: Offers various extensions like 'Revit Lookup' for better data access.

• 2. Dynamo: A visual programming tool for automating tasks and creating custom workflows.

• 3. BIM 360: Cloud-based collaboration tool for project management and real-time updates.

• 4. Enscape: Real-time rendering extension for crea...read more
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Q11. What is Process of creating a project from scratch to intermediate(hint desired project template ,setting of template,link files(positioning),level,grids (copy monitor), setting views,sections ,elevations...read more
Ans. 
Creating an Electrical BIM project involves setting up templates, linking files, and organizing views for efficient workflow.
• Select a desired project template that aligns with project requirements.

• Set up the template by configuring project settings such as units and discipline.

• Link necessary files, ensuring proper positioning for coordination with other disciplines.

• Establish levels and grids using the copy monitor tool...read more
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Q12. Project parameters , shared parameters, global parameters , family parameters
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Q13. What are different method of linking files and different coordinate system
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Linking files in BIM involves various methods and coordinate systems for accurate modeling and collaboration.
• 1. Direct Linking: Files are linked directly within the BIM software, allowing real-time updates.

• 2. Shared Coordinates: Establishes a common coordinate system across multiple models for consistency.

• 3. Geographic Coordinates: Uses real-world coordinates (latitude/longitude) for site-specific projects.

• 4. Import/Ex...read more
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Q14. What are view filters
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View filters in BIM allow users to control the visibility of elements in a model based on specific criteria.
• View filters can be applied to control which elements are visible in a view.

• They can be based on parameters like element type, category, or custom properties.

• For example, a filter can be created to show only electrical components in a specific view.

• Filters help in decluttering views, making it easier to focus on ...read more
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Q15. What are Schedules
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Schedules are organized lists of data in BIM, detailing elements like quantities, dimensions, and specifications.
• Schedules provide a comprehensive overview of project components, such as lighting fixtures and electrical panels.

• They help in quantity take-offs, allowing for accurate material estimation and cost analysis.

• Schedules can include information like manufacturer details, model numbers, and installation requireme...read more
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Q16. What is Xref
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Xref, or external reference, is a feature in CAD software that allows linking to external drawings or models for better collaboration.
• Xrefs enable multiple users to work on different parts of a project simultaneously.

• Changes made to the original Xref file automatically update in all linked files.

• Example: An electrical plan can reference a structural drawing without duplicating data.

• Xrefs help manage large projects by k...read more
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Q17. What is clash detection, Sets, viewpoint and tolerance of clash used in your project
Ans. 
Clash detection identifies conflicts in BIM models, ensuring efficient design and construction processes.
• Clash detection is a process used in BIM to identify conflicts between different building systems.

• Sets refer to groups of elements or components that are analyzed together for clashes, such as electrical and structural elements.

• Viewpoints are specific perspectives or angles from which the model is analyzed for clash...read more
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Q18. The tool test files contained cable tray Modelling dropping at different points to dbs. Shop drawing creation to show main layout with annotation of cable tray and dbs , one section for drop of Tray to db...read more
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25 Questions, Multiple choice, Single correct as well as multi-correct, related tp python, django & flask

Find the maximum occurring number in a list of numbers without using any in-built functions, in linear time using, O(1) space

Q1. Difference between Lists and Tuples?
Ans. 
Lists are mutable, ordered collections of items while tuples are immutable, ordered collections of items.
• Lists are defined using square brackets [] while tuples are defined using parentheses ().

• Lists can be modified (add, remove, change elements) while tuples cannot be modified once created.

• Lists are typically used for collections of similar items that may need to be modified, while tuples are used for fixed collection...read more
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Q2. Difference between Shallow copy and Deep copy?
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Shallow copy creates a new object but does not duplicate nested objects, while deep copy creates a new object with all nested objects duplicated.
• Shallow copy only copies the references of nested objects, not the objects themselves.

• Deep copy creates new copies of all nested objects, ensuring complete independence.

• In Python, shallow copy can be achieved using the copy() method, while deep copy can be achieved using the d...read more
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Q3. What is MVT architecture?
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MVT architecture stands for Model-View-Template architecture, commonly used in web development with Django framework.
• MVT separates the logic of an application into three components: Model, View, and Template.

• Model represents the data structure, View handles the user interface and business logic, and Template manages the presentation layer.

• MVT is similar to MVC (Model-View-Controller) architecture but with a different n...read more
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Q4. What are decorators in Python?
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Decorators in Python are functions that modify the behavior of other functions or methods.
• Decorators are denoted by the @ symbol followed by the decorator name.

• They allow you to wrap another function in order to extend or modify its behavior.

• Decorators are commonly used for logging, authentication, and memoization.

• Example: @staticmethod decorator in Python is used to define a method that is not bound to an instance of ...read more
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Q5. Difference between static and instance methods in python? Explain what decorator to use for defining static methods?
Ans. 
Static methods are bound to the class itself, while instance methods are bound to instances of the class. Use @staticmethod decorator for static methods.
• Static methods do not have access to class or instance attributes, while instance methods do.

• Instance methods can modify instance state, while static methods cannot.

• To define a static method in Python, use the @staticmethod decorator before the method definition.

• Exampl...read more
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Q6. What is inheritence? How many types of inheritence are there in python?
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Inheritance is a mechanism in which a new class inherits attributes and methods from an existing class.
• Inheritance allows a class to reuse code from another class.

• Python supports single, multiple, and multilevel inheritance.

• Example: class ChildClass(ParentClass):
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Q7. What are access specifiers in Python, how are they set-up?
Ans. 
Access specifiers in Python control the accessibility of class attributes and methods.
• Access specifiers are not explicitly defined in Python like in other languages such as Java or C++.

• By convention, attributes and methods starting with a single underscore (_) are considered 'protected' and should not be accessed directly.

• Attributes and methods starting with double underscores (__) are considered 'private' and are name...read more
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Q1. How to do transformer sizing
Ans. 
Transformer sizing involves calculating the appropriate size of a transformer based on the electrical load requirements.
• Determine the total electrical load that the transformer will be supplying

• Calculate the required kVA rating of the transformer based on the load

• Consider factors such as efficiency, voltage regulation, and future expansion

• Select a transformer with a kVA rating equal to or greater than the calculated va...read more
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Q2. How to do cable sizing with Indian standard code
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Cable sizing with Indian standard code involves determining the appropriate size of cables based on current carrying capacity and voltage drop requirements.
• Refer to IS 3961:1967 for guidelines on cable sizing in India

• Calculate the current carrying capacity of the cable based on the load requirements

• Consider the voltage drop limits specified in the Indian standard code

• Select the cable size that meets both current carryi...read more
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Q1. Online technical round for 20 mins MCQs (Moderate level)
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Power BI Report Development - Hands on for 1 hour (Intermediate to Advance level)

Q1. Technical F2F for 30-40 mins (Intermediate level)
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Q1. Technical F2F for 30 mins (Advance level)
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