This content is the second part of a BIM interview question and answer series, focusing on practical application and technical knowledge of BIM software and workflows, primarily within the context of Revit and Navisworks. It aims to equip viewers with answers to common questions asked during BIM job interviews.
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Hi everyone welcome back to our YouTube channel BIM for Construction. So Revit's and their
All the interviews related to AutoCD There was a series, we had completed it and in this
What we're doing in the BIM interview Questions are asked, continue answering them.
So, you haven't seen the channel yet. If you haven't subscribed to the channel
Subscribe and enjoy the channel's playlists By going to the section, you can see all the interviews.
Series of tutorials from Revit to CAD Those from ACC can watch out.
So we uploaded a part of the interview. We had already done it. This includes our top 50
There were questions in which we were asked in Part One 25 top questions were discussed
That was with answers. So now here's part two. In which we will start with 26 questions.
We will answer the questions that we left out. These questions are being asked in the beam interview right now.
Which is mostly what is being asked. So let's go. Let's begin. The first question
We will have 26 in which we will discuss What is Clash Avoidance vs. Clash?
detection. So these interviewer questions asks you. Whenever you're up for a beam job
If you are applying for any position Are you going to be a beam modeler, beam engineer or
BIM coordinator or BIM manager. So this You are mostly asked questions. So
The answer is Clash Avoidance Means Designing Rules and Standards to Prevent
clashes. Whenever you start premodeling Are from any trade if you are mechanical
K H they are drawing, mechanical K drawing piping or plumbing,
Water supply, drainage or even fire Serving protection. Cable
You have different systems of tray. Draw for ELV, LV and Medium
voltage. So whenever you're modeling your When you start, you start with a basic
Coordination of work flow there Come on. You can call the service in the corridor.
Design in such a way that whatever is there clashes Avoidance is where we maximize what we have.
So that later we can get the modelling done. The time to devote to clash coordination
What happens is that we consume less there. So what you can see in this is designing
Rules You need to set some rules and Standards to Prevent Clashes.
Also, whenever you draw a model, you You need the basic SMACNA basic NFPA
You also have knowledge of basic IPC. Clash detection is compulsory. Now you
After the model is drawn, Identifying Conflicts That Matter to You
In between MBP services you Identifying conflicts there
Using Nevis work tools and Those clashes have to be resolved. And those
Your clashes give you architecture Even with the structure that's there
Workouts have to be done in structure. Your columns, beams, their clashes we avoid
Column Stiffeners Length Beams You will have to watch out for clashes with these. If your
Some are steel structures. Your facade, which If that building has some facade steel
If there is a structure, you will have clashes with that too. We have to see it there. So this was our
Question 26. Question 27. How do you use Dynamo in the BIMAB work flow? So Dynamo is a
There is an addon that you can install privately. and an automated one that repeats
The task is to automate it If you use DynamoScript and
If you have to do something tight then for that also If you have created some coding then you can use Dynamo
You can use the script there. And with this, when we do Kobe and so on
So whatever is there in that is very helpful. Some Dynamo scripts that will do your work
Whatever it is, it can do it fast. So the answer is Automating Tasks Like Sheet Creation
Renumbering data export/import which Used in our COBie. Model Checking
If you have some point that is parametric Design and Geometric Generation. So
Dynamo which is a course separate for you It is available in which you will get coding etc.
Knowledge of Java, Python and basic C This is necessary. So that you can create a code through
Let's prepare a script that will be yours To automate that task, which is there
It helps you. Next question Explain the difference between cat-based work
Flow and beam based work flow.So CAD to 3D Drafting with No Data Intelligence
As Cad was our today means five to What was Cade's 10 years ago is more ours.
There was a trend, but Rabbit is now what it is, mostly every Contractor every designer who is Rabbit Pay
are shifting. So the data intelligence She was somewhere behind us in the cadre
And in that, what is parametric design? We also had some limitations and that's why
Which is also in work sharing collaboration There were limitations. So now the beam is a complete
Sets up a work flow in which you The intelligent 3D data model there
You can prepare. Coordination You can do it very well. Create a schedule
You can calculate the cost from the BOQ and so on. You can estimate the timeline.
You can create it. So, all these benefits Provides you with a beam there.
Which is a platform beam that you can rabbit Nevisburg is done, your Rabbits are done.
Blue Beam: By using all these, you can Beams create a workflow.
for your modeling or whatever your You've got the building. So, Beam Manager.
Mostly using BEP and ISO 19650 Which is the BEP that sets the particular
For the project, you will get all this in it. The next question is how
Do you manage IFC export from Rabbit? So Rabbits K Through You Different
Can give exports. Whatever modeling You have created it. You can export the CAD.
You can give Nevis exports There is an opportunity to give you IFC exports.
But you do get the option. So, whatever you have Simply map the parameters.
You can also access the parameters within IFC. want to give export. You need LOD check
Verification Classification System Test Intro Probability. So whenever you
If you give IFC export then you will get some Settings should be pre-set there
You will find the video on our channel. Inside the Rebi tutorial. What settings
You need to keep it for the IFC process. You need to ensure the parameters
It happens that you have created parameters Whatever parameters you have
belong to different categories. For Example: Mechanical equipment, plumbing
Equipment, loads, windows whatever parameters All the parameters you created are there for you.
But they should be created. Along with this, your LODs should be proper there family
of. And then after giving you the export He has to open IOC in different software.
Do check it once. So next. The question is what is your experience with
Client beam requirement EIR? So Joe EIR is our same 19650 which
There is an IOS standard in which this Everything is defined by us. So when
Any projects are made Project for example if you have
Any football stadium project coming up? Do you have any airport project?
If it is coming then take the help of ISO 19650 Managers are the first ones to set BEP.
They do it and BEP is all these Check the document requirement there
shows the full form of EIR. Employs information requirements that clients
that expectation is your through beam All that about the project is in this look.
What is LOD? Data drops What will the file formats be? Naming
What will the standards be? And all this BAP will ensure that there is alignment
All this data that you have inside it Will be made available. What are the men?
Difference Between CAD Standards and Beam Standards? CAD Standards, Control
Layer naming, line types, and colors. Beam Standards Cover LOD Parameters Naming
Convention File Structure and Collaboration Work flows defined in BEP and ISO
19650 which are the standards of CAD That mostly happens to you on CAT whenever you do something.
If you do a project, what are your CAD requirements? You should stick to the standard basic template
Will the layers' naming line follow? What Types Colors Will Follow Differently
The standard of services it provides Provides beam standard
That's ours, basically whenever you rabbit or You can create 3D models using other software.
What LODs do you need when creating them? What needs to be defined on the client side
LOD has been required for that LOD According to how much you want to develop your family
How much level of information do you have to give which through your partners you give you
What file naming convention to use What will be the file structure and collaboration
What is the work flow, what will happen on ACC? How are you collaborating with Bomb 360?
Which will be your formats deliverables Master who is our MIDP
Master Initiation Delivery Plan This is what defines the boom here.
through standards. The next question is What is the purpose of Nevsx Timeliner?
So using the Nexus Timeliner, which is You can create a schedule. For
Example is your building in which your The first workout we will do is
The columns of the underground beams. Gradually, the
Then our floor starts. Architectural walls etc. are our contribution
MP services are installed. You all create different sets.
We will do it. Priority wise, that is, first There is a task. For that first task, you
First, you need to create a set. You will find detailed video on our channel
It will take you 15 to 20 minutes How to create a complete timeline
We have discussed it. Create a set in it. After the set, those
The set has to give us a sequence that What will be the first sequence drawn and its
After which there is an animation of our Navis work. Through there we create date wise that
This work was completed within this timeline. Then again the animation will proceed.
that sequence to your entire building Wise will show what's there. So this
We have a 4D beam, which we call 4D The different dimensions are 2D, 3D, 4D,
We use it according to 5D, 6D beam. If the client has requested a 4D beam
If the requirement is offered, then Next The question is how do you create a
Parametric Family in Revit? To create a parametric family
You have the option of family editor. In which you will go after which you will get a
You will have to select which template you want. Want to create a family of templates.
The gift is that you get reference planes It is there by default and you can also create
So those reference planes end By using lines you get the particular
For example, the length, width and height of the box are So it has to be aligned and locked.
through the reference plane. Then that dimension which is you can set any parameter whatever
Parameters You have created instances or By tagging it with a type parameter, you
You can create a parametric family. So this is our length and width for you.
Whatever the height is, you will get the parameter there which Let's create a parametric
Directly inside the model, length inside it If you deposit Rs. 1000 then your family will deposit Rs. 1000 in your account.
It will adjust to the length. You can then If you change it, it will change again.
We call the parametric family Rabbit's inside. Next question is our what is
The Difference Between Group and Assembly in Frewitt? So group repeated elements
Grouped Together Example Apartment unit. So any, for example, you draw that
If your model is any MAP or If there is any repetition from the architectural structure
The elements you see repeatedly are part of the model. having to draw inside which is bunch
For example, we can say that your FCU's which are mechanically chilled water
Our connections are similar to yours. and once you create it, you
Whatever accessories of the whole bunch come inside it Thermometers are done, test points are done
Your strainer is done, your walls are done. You can select them all and create a group.
You can create it. So you don't have to replace it again and again. You don't have to do that for other FCUs.
Simply place that group there at once You can copy and paste it. So the group
You can group repeated elements. are together so that you and your further
You can save time and save someone too. You can do it. And with that, there's the assembly.
Logical combination of elements for Documentation and Detailing Example
States Assembly. So our Assembly is That would be a combination. For example
You have any elements that you If you want to provide detailing then you are
You can also create its assembly and You can give it a name. Your particular
Whatever assembly you have created. As well as their schedules etc.
You get the option. How do you mean it? Manage File Size Management in Large Rabbit
project. So mostly right now it's that whenever If we get a project then a BP
You would have been provided with some limitations within that the size of your rabbit file
is particular like 250 MB above 350 MB You shouldn't go. This is the requirement.
It is also available to you in BP. is from the client side so that whatever is
When loading a project, its NWC exports etc. and when that file
If you use different subtractors, they To work on that file smoothly
So that you can get it easily. So for this you have to Particularly you have to put limitations on the worksheet
You can create a proper work set. Keep in place families who have to avoid
should be done to create. And Families can also give you the extra perk you need.
Delete the unnecessary 3D Views, Unnecessary Floor Plans, Unnecessary
The section views you have Don't put it in the model. And if your
Project Means is very big like Projects like stadiums and airports
You can do this for 15 to 15 months or monthly for your file. It is that you audit it particularly and
Still, if your file is getting heavy This means going beyond a particular limit.
So what you have is different levels Accordingly, place your different files there
Split options Yours remains last and the links that are there
You can manage it by going there. But by going through the Manage link, any CAD or
If there is any rabbit file then you can delete it as it is Add via Manage link, not Import
Do it because imports are those which are CAD It will be particular to your rabbit file.
It will come inside and that is its storage. Rabbit file will be executed there.
So you can also avoid the option of importing. Next is what you'll see.
Templates in Rabbit.So view templates which you can create particularly
Float plan sections for 3D views or For example, for schedules you
have done any work on the floor plan and Half-toned some rabbit links in it
Close some categories, change the scale If you do, it will give you the same result on every floor plan.
No need to return repetitive You can create a Simply View template.
Can end with particular float plan Then apply it to another float plan.
You can save time with this. And along with this, you can watch it on our channel.
Here you will be able to see that you have to complete beginner to We have provided the full course on Advance here.
In which you will also get information related to view template. You will find the detailed video there.
It will become available. So, next question. What is the level of information needed? So, as
that whenever you create a family, FCU's or your fire sprinklers
You can create a panel of Hui or Electrical If you are doing this, then LOD is the level of
Development means how much you give to that family Details of the actual manufacturer
With Submittal you are creating what is But we also need to know some information about him.
Parameters have to be provided through. What remains ours is yours, that in it
How much are you feeling in it? So it Define the Right Amount of Ination Geometry
Plus data. You created the geometry. The exact manufacturer's
Butt data as per the material submitted You didn't fill it in. For example,
You will have to create the parameters. Which will contain the manufacturing parameters,
The parameter of the model will be your voltage parameter, frequency parameter
Different-different whatever your equipment So, he will vary it accordingly.
You will need to create all the parameters and You can also find the values of those parameters there.
So, that's our level. of information which we have to fill there
it occurs. Next is how does the beam support
Sustainability Analysis by Exporting Simulating Models to Energy Analysis Tool
Daylight ventilation thermal loads and Optimizing Materials for Energy
Efficiency So that your beam models are IFC after giving you their export
Andwc which is their different exports By giving you some energy analysis
Tools are available through them which is You can also look at the sustainability of the building and so on.
You can also check it there. These are our different dimensions.
As in 7D etc. you get all these features You have to make it available. Whenever your
Pass project 7D or 8D from client's side So next
Our question is what is the difference Between Nevis Manage and Nevis Simulation
Simulate. Include clash inside so manage Detective Plus Timeliner and Simulate Haze
Timeliner and Visualization But No Clash detection. So Nav's giving you a total of three
You will find varieties. So your nviss is managed, one your nvw
There's a simulated, a new freedom. So in all Whatever it is, you get some limitations.
The Nav that is managed is your full package. There is a paid version in which you get all the tools
They become available there. What are Filters in Habit and How Do You Use Them?
Filters control visibility of elements By category, parameters and rules.
In particular floor plan, if you Example pipe category not turned off
want to. You can get inside particular pipes For example, if you are a drainage shop
If there is drainage in the floor plan then you I want to put the waste pipes there.
But you have to turn off the soil pipe there. If you want to, then in visibility graphics
Whenever you turn off a pipe, all the pipes It will turn off there. But use the filter.
By doing this you can define a rule that I only need soil pipes in this plant.
to turn off. So the filters that create You do it by category by parameter
You can create it there. You simply Rules will need to be defined. There's a video for this too.
It will be available to you on our channel. What is the difference between rabbit schedules?
and Excel-based POP. So Rabbit Schedules are directly linked to the model
elements and update dynamically. So whatever You have drawn them all in your model.
Equipment schedules you can pull out your mechanical equipment, plumbing
Equipment or whatever model you drew You can get all their equipment directly from there.
The schedule slips. So whenever you Let's update if for example 10
There were quantities of FCU. Now you have 15 there. But it's embedded in your model. So, the
Data is automatically within the schedule Will keep updating. Whatever BO has done
Our manual remains. You can manually like on shop drawing or you can export via CAD
later there is counting and you manually creating an Excel. So this is
This data is very much like ours before when Bim and Rabbit were not there before this
Practice used to be used. But now Rabbit is here. So what Rabbit has now
We can do this directly by using the schedule. Here's our Bill of Quantities from there.
What are design options in? Rabbit? So particular if you model anything
Have you done architecture for example? Any room has been designed inside that room
You have done some planning regarding furniture and If you want the same design, you
I also want to keep the second option inside the rabbit. But what is the casting you drew the model for?
If you don't want to delete it, then you You can use the design option.
Features That Allow Multiple Designs Alternatives. You Can Find Different Alternatives
You can show it to your client. Look at this. This is design one. This is design two, the same model.
And what you have to do in taking decisions It will help us decide which final to keep.
So you have two different travels. No need to work on models.
You will also need to delete your previous You can use the Simply Design option.
By doing any particular for the same model Two to multiple more designs available at the location
But you can draw. And at one point, You must have kept the primary design that current
You will be visible. What is your Experience with Kabi Deliverable? So Kabi
Which is our process in which we all There are equipments related to them
Provides sheets that give you space There is data of your level.
This is system data, so different Parameters that we have created
All those parameters are exported inside it. Particulars in the sheet become
For example, FCU units, any number of Manufacturer Model That Particular Kiss
All that data is inside the space. It gets exported. What follows is further.
CMM integration or use of digital twin By doing this, our data from a particular sheet
It has been exported. We are building Let's optimize. Whatever it is like
Our asset management is done. Facility management is done. Use within it
How do you manage multiple Consultants using different VIM software
Buy Exchanging IFC Setting Clear PEP, Checking Interoperability and Using CD
Platform to standardize formats. So If you work with different consultants
You have a lot of subcontractors. So you have to deal with them, how can you do that?
There are different Vim software available there. You will be able to use it on one SIM card.
will be able to work. So for this IFC Export sharing is very important
Because this is the global expectation which It happens and is acceptable. You have BP
You have to keep a clear set. on Common Data Environment platforms
You will have to use it. As you can see in ACC BM You can also use 360. You will need some
formats standard to put it there So, by using all of this, you
One face to face with multiple consultants can work. So this question mostly
beam interviewer asks you. So you Keep the answer simple. Then how do you
Ensure accurate quantity take off in beam. So by setting correct parameters,
Verifying Families, Assigning Materials, Checking Schedules and Auditing Before
Extraction. So Rabbit's through whenever you Schedules generate the same results you try
Make sure that you have an element inside There should be no duplication. Your families are
You are correct. We have unnecessary families there. But you haven't used it. Parameters' data
be correct. The parameters whose data we Exporting within the schedule.
And then you should also verify what you have. After giving export and also through nav
You can take out that schedule and verify it. Next question: what are some dynamics?
Dynamo Scripts You Have Used? In that you have to give that example.
Automated Excel schedules so whatever You used Dynamo scripts
There are two to two to three examples which are you You can share it with your client and
How your work becomes faster because of tools If you do, you can share that too.
The next question is what is clash? Matrix and Why Is It Used? So when
Also we see clashes, run clash detection differentiate between different services
MEP vs Structure for Example So whatever clashes we had there
We need to store that count as a matrix above. has to be provided inside and this
You can also create the matrix manually. You can also give some guidance to
which becomes available through Nav Directly export this matrix
Whenever you clash inside the nav Let's run the detection tool. So a clash
Matrix Defines Which Discipline Will Be Evaluated against each other it avoids retard
Cleat Disruption and Saves Times. So this is also a benefit that you get an idea.
I think which service is for us Which service is there with other services?
Clash detection is to be performed. For example Mechanical vs Electrical Mechanical
Mechanical Versus Plumbing Structure.SoC clash detection
of the matrix that we have sampled I've uploaded it on YouTube. You can go and see it.
Whatever is inside is now available to you. So you can see those shots.
for example What you get is the Beam Clash Matrix here.
We have a full shot of the detection here I have prepared a sample. You can see this sample.
You can and on this sample we will give you Also provide videos in upcoming dz
I will give you. So our next question is What is the difference between bim 360 docs
Design and build. Same as bm 360 Like our Rabbit's Inner
Different versions are available there Similarly, for b 360 you also get
Different versions are available. Whenever you have access to the docs
So you can do document management there. You can upload documents
You can download it, you can share it. Yes, you can create trans material.
Design your cloud collaboration This is for rabbit models. You can use private
Models can be placed there. You can create a central file. Different
The contractor's models are there You can consume it. Build it is yours.
Field management takes place. You can also file an RFI. Progress tracking
Can do and punch and punch list You will get all the information like tracking etc.
You'll find the options there. So, next. Our question is how do you deal with it?
Client request for LOD 500 model? Clarify Expectations Confirm Weather Give
Require Aspid Survey Data and Use Point Cloud if necessary. So as you should first
We have also clarified that LOD 500 Our final LOD happens to be something
Also for the Rabbit model. So, in the 400, we According to a fabrication drawing
with the client by generating our model But due to the site
Constraint some places to our shop drawing It is not possible to follow the site 100%
But... so there's something there, depending on the site. Variations are made within the installation.
Now we have to capture that data and convert it into a model. so that we can do it as it is
Our Ravit model according to side conditions So that fuzz is LD
500. In this, either the client From his side we got red line markup
that we changed the route of the duct here and This is the route we followed. Or we
Use the point cloud file that's there. The client will need to provide laser scanning
We will have to demand the file from there and Through that, which is the laser scanning of the file
Through this we can create LOD 500 model there. You can. Next question is what is
KPIs are performance indicators. You track in Beam project? So you Beam
What KPIs are you looking for in the project? Tracking Clash Resolution Rate
Your success rate of clash resolution How good is that? Model accuracy
How good is your turn coordination? How good is your around time.
Schedule Variation and Beam Execution App How well are you able to do it?
Using these KPIs, you can improve your project can increase the quality of and what you
can improve your work even more. So this Those were our top 50 questions that we
Covered in Part One and Part Two. If you liked the video then please like and share it
Forget it. Thank you.
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