Top 22 MATLAB Simulink Interview Questions And Answers

Hello guys, welcome back to my blog. In this article, I will discuss the top 22 MATLAB Simulink interview questions and answers asked in technical interviews, interview questions on MATLAB, or interview questions on Simulink.

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MATLAB Simulink Interview Questions

01. What is MATLAB?

Ans) MATLAB is basically an acronym for the MATrix LABoratory. It is open-source software that is used for various complex mathematical calculations including matrix operations. It can also do the calculations such as data analysis and visualization. It is also used in engineering graphics and designing.

02. What are the applications of MATLAB?

Ans) MATLAB is used in the following ways:

MATLAB is used in Maths and computation.
It is used in Algorithm development.
It is used in the simulation, modeling, and prototyping of the product.
It is also used in Data analysis, exploration, and visualization.
It is used in Scientific and Engineering Graphics.
It is used in the application development, containing the GÜI.

03. What is Simulink?

Ans) Simulink refers to the add-on product to MATLAB. It provides users with an environment that is interactive, graphical, and simulating. It is used for modeling and analyzing dynamic systems.

04. What are the types of loops provided by MATLAB?

Ans) The different types of loops provided by the MATLAB are as follows:

For Loop
While Loop
Nested Loop

05. What are the names of the 3D-Visualizations elements in MATLAB?

Ans) 3D-Visualization elements present in MATLAB are used to handle the 3D graphics. The name of the 3D-Visualization used in the MATLAB is as follows:

Surface and Mesh Plots
Volume Visualization
Transparency
Lighting
View Control

06. What are the names of the various memory management functions in MATLAB?

Ans) The Memory management functions present in the MATLAB are as follows:

Clear
Pack
Save
Load
Quit

07. What are the various graphs and plots of MATLAB?

Ans) The various table define graphics and basic plots. The name of the various graphs and the plots are Box, Errorbar, Hold, Line, LineSpec, Loglog, Plot, Plotyy, Polar, Semilog, Semilogy, Zlim, Xlim and Yilm.

08. What is the name of functions used for solving the Ordinary Differential Equations?

Ans) The name of the four functions used in the MATLAB for solving the Ordinary Differential Equations are as follows:

Quad
Quad8
ODE23
ODE45

09. What is the process of MATLAB installation in Windows?

Ans) For the installation of the latest version of MATLAB i.e. MATLAB R2020b, the fulfillment of eligibility is required. The prerequisite for Windows are as follows

A PC or desktop computer with Windows 10 or at-least Windows 7.
Any Intel or AMD x86-64 processor (for the sake of your pc).
It basically require a minimum of 4 GB RAM but 8 GB is recommended.
The SSD is recommended for the use of MATLAB, but 3.5 GB HDD space for MATLAB only, 5-8 GB for a typical installation.
Graphic card is not required.

10. How to plot a graph in MATLAB?

Ans. For any two points, x and y with some values given, a function called plot (x, y) is used to plot a graph in MATLAB.

Syntax : x : [value of array];

y : [value of array];

plot(x, y)

11. What are the standard toolboxes present in the MATLAB?

Ans) The standard toolbox present in MATLAB is Control Systems, Fuzzy Logic, Image Processing, LMI Control, Neural Networks, Optimization, Partial Differential Equation, Robust Control, Signal Processing, Statistics, Symbolic Math, System Identification and Wavelets.

12. What is Xmath?

Ans) Xmath refers to an interactive design and graphics environment for Xwindow’s workstations.

The features of Xmath are as follows:

It is used in the scripting languages with OOP features.
The main libraries of Xmath are LNX and C language compatible.
It is a kind of debugging tools with GUI features.
Color graphics can be pointed and clickable.
A specific layer is feasible that is programmable for MOTIF GUI.

13. What is Pseudo-Random Binary Sequence?

Ans) Pseudorandom binary sequence is a form of creating an M-file in the new Frequency Domain System Identification Toolbox, for a specified set of lengths (2^2-1 to 2^30-1) is called a pseudo-random binary sequence.

14. What is Numeric Precision?

Ans) Numeric precision is the Numeric quantities that are represented as double-precision floating-point numbers are called numeric precision. In any kind of system, numbers have 53 significant binary bits, which is about 15 or 16 decimal digits.

15. Can we use MATLAB without the Graphics?

Ans) Sometimes people want to run scripts that involve plotting commands without showing the plots and without going into the script to comment out the commands.

An example: if a person working from home and it’s too slow to run graphics over the network. A person can play a simple UNIX trick:

%setenv DISPLAY /dev/null % matlab

16. What is P-code?

Ans) Pcode is related to the M-file. It is a prepared and encoded version of the M-file. It is used for storing the load time of the function.

17. What is the stress analysis in MATLAB?

Ans) MATLAB is used in aerospace engineering, space environment. It is suitable for flexible dynamics. To analyze the stress, NASTRAN, IDEAD, Oracle, and PATRAN levels of proficiency are required. The functions are also used on aircraft that is a metallic structure. The stress analysis contains control surface stiffness understanding, loop evaluation, finite item modeling, and fatigue testing requirement and analysis.

18. Explain The Matlab Mathematical Function Library?

Ans) Matlab Mathematical Function Library is a vast collection of computational algorithms ranging from elementary functions like sum, sine, cosine, and complex arithmetic, to more sophisticated functions like matrix inverse, matrix eigenvalues, Bessel functions, and fast Fourier transforms.

19. How to implement a neural network in MATLAB?

Ans) A neural network is implemented in the MATLAB by using the seven primary steps:

Data Collection
Network creation
Network configuration
Initializing the weights and biases
Training the network
Validating the network
Using the netwok

20. How to open SIMULINK in MATLAB?

Ans. SIMULINK present as an add-on in Matlab can be easily accessed in MATLAB by the use of the Home tab. One should simply go on the Home tab and click Simulink.

21. How to create GUI in MATLAB?

Ans) The steps to create a GUI in MATLAB are as follows:-

Starting the GUIDE by typing guide at the MATLAB prompt.
In the GUIDE Quick Start dialog box, selecting the Blank GUI (Default) template, and then click OK.
Displaying the names of the components in the component palette:
Selecting File > Preferences > GUIDE.
Selecting Show names in component palette.
Clicking OK.

22. How to stop a program in MATLAB?

Ans) We can simply use the quit command to stop a program in MATLAB or we can use the desktop shortcut such as Ctrl + C.

This was about “MATLAB Simulink Interview Questions“. I hope this article “MATLAB Simulink Interview Questions” may help you all a lot. Thank you for reading.

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