MATLAB / Simulink for Electrical Engineers – MCQs – EE

1. Simulink is primarily used for:
(A) Symbolic computation
(B) Graphical simulation of dynamic systems
(C) Numerical integration only
(D) Creating scripts

2. In Simulink, blocks represent:
(A) Equations only
(B) System components and operations
(C) Variables
(D) Files

3. Lines in Simulink models represent:
(A) Equations
(B) Connections for signal flow
(C) Blocks
(D) Parameters

4. MATLAB and Simulink are integrated because:
(A) MATLAB scripts can generate Simulink signals
(B) Simulink blocks can call MATLAB functions
(C) Both A and B
(D) They are separate tools

5. The MATLAB function block in Simulink is used to:
(A) Execute MATLAB code within a Simulink model
(B) Generate plots only
(C) Simulate circuits
(D) Store variables only

6. Constant blocks in Simulink provide:
(A) Time-varying signals
(B) Fixed values
(C) Random numbers
(D) Mathematical operations

7. Scope blocks in Simulink are used to:
(A) Display signals
(B) Perform calculations
(C) Connect blocks
(D) Store variables

8. Gain blocks in Simulink are used to:
(A) Multiply input by a constant
(B) Add inputs
(C) Integrate signals
(D) Generate constants

9. Sum blocks in Simulink are used to:
(A) Multiply inputs
(B) Add or subtract signals
(C) Integrate signals
(D) Generate step inputs

10. Step blocks in Simulink provide:
(A) Constant signals
(B) Ramp signals
(C) Signals that change at a specified time
(D) Random signals

11. The Integrator block in Simulink:
(A) Differentiates a signal
(B) Integrates an input signal
(C) Multiplies signals
(D) Adds constants

12. MATLAB scripts can be used to:
(A) Define simulation parameters
(B) Analyze simulation results
(C) Initialize variables for Simulink models
(D) All of the above

13. A subsystem in Simulink is:
(A) A single block
(B) A collection of blocks grouped together
(C) A mathematical operation only
(D) A MATLAB function

14. Signal routing in Simulink is done using:
(A) Lines
(B) Buses
(C) Both A and B
(D) Only constants

15. A Mux block in Simulink:
(A) Combines multiple signals into one
(B) Splits a signal into multiple signals
(C) Multiplies signals
(D) Integrates signals

16. A Demux block in Simulink:
(A) Combines signals
(B) Splits a signal into multiple signals
(C) Integrates signals
(D) Generates random numbers

17. Simulink can perform:
(A) Continuous-time simulation
(B) Discrete-time simulation
(C) Both continuous and discrete-time simulation
(D) Only symbolic analysis

18. To run a simulation in Simulink, you click:
(A) Run button
(B) Stop button
(C) Save button
(D) Edit button

19. MATLAB workspace can be linked to Simulink using:
(A) From Workspace block
(B) Constant block
(C) Scope block
(D) Integrator block

20. To log simulation data for analysis, you use:
(A) To Workspace block
(B) Constant block
(C) Gain block
(D) Step block

21. Fixed-step simulation in Simulink is used for:
(A) Discrete-time systems
(B) Continuous-time systems
(C) Symbolic analysis
(D) MATLAB coding only

22. Variable-step simulation in Simulink is preferred for:
(A) Continuous-time systems with varying dynamics
(B) Discrete systems
(C) Constant signals only
(D) Static analysis

23. In Simulink, algebraic loops occur when:
(A) Output depends directly on input within the same time step
(B) Input is constant
(C) Integrators are used
(D) Gain blocks are used

24. To resolve algebraic loops, you can:
(A) Introduce a delay
(B) Reorganize the system
(C) Use solver options
(D) All of the above

25. Simulink solvers are used to:
(A) Solve differential equations numerically
(B) Plot signals only
(C) Combine blocks
(D) Create scripts

26. Fixed-step solvers are preferred for:
(A) Real-time simulation
(B) Variable-step simulation
(C) Symbolic computation
(D) Static systems

27. Variable-step solvers adjust step size to:
(A) Maintain accuracy
(B) Reduce computation time
(C) Both A and B
(D) None of the above

28. The Scope block in Simulink can display:
(A) Single signals
(B) Multiple signals
(C) Both A and B
(D) Only constants

29. Simulink is widely used in EE for:
(A) Power system simulation
(B) Control system design
(C) Signal processing
(D) All of the above

30. A major advantage of Simulink over pure MATLAB scripting is:
(A) Graphical modeling of dynamic systems
(B) Faster computation only
(C) Better plotting
(D) No advantage