Simulation

MATLAB

This set of MATLAB Multiple Choice Questions & Answers (MCQs) focuses on “Simulation”.

1. What is the output of the following code?

simlink;

a) Error
b) Opens a window for Simulink
c) Closes MATLAB
d) Opens simlink and closes MATLAB

2. What does the following block do?

a) Converts a Simulink signal to a physical Signal
b) Converts a Simulink variable to a physical variable
c) Converts a Simulink operation to a physical operation
d) Does nothing

3. What does the following block do?

a) It evaluates circuit parameters after steady state
b) It evaluates circuit parameters of every component during Simulation
c) It evaluates the equation f(x)=0 for Simulink Signal
d) It does nothing

4. What is the error in the following model?

The error in the above model is the absence of a ___ ground
a) Simulink
b) HDL coder
c) Simscape
d) A.C.

5. Is this block necessary for circuit analysis in the SIMULINK model?

a) Yes
b) No
c) Only for AC analysis
d) Only for DC analysis

6. How can we connect the following blocks?

a) By a wire
b) By converting the signal from the sensor to a Simulink Signal
c) By a VCCS
d) By a ground

7. What does this block do?

a) Sends a signal from one part of a circuit to another
b) Sends a signal from one file to another file
c) Sends a signal from source to destination
d) Sends a function from one signal to another

8. What type of signals does this block take?

a) Only real signals
b) Only Complex signals
c) Only digital signals
d) Any signal

9. When does the ramp function start in the following block?

a) At t=0
b) User specified time
c) At t=1
d) Just after t=0

10. Which waveform is not produced by the above block?

a) Cosine
b) Tangent
c) Square
d) Sawtooth

11. Which of the following takes a mathematical user-defined function directly?

a) Left upper corner block
b) Right upper corner block
c) Left bottom corner block
d) Right bottom corner block

12. What does this block do?

a) Checks whether the input signal is non-zero
b) Check whether the output signal is non-zero
c) Checks whether a signal is zero
d) Checks whether we have a ground in the circuit

13. Is the battery voltage dependent on charge?

a) Yes
b) No
c) It can be modelled
d) It cannot be modelled

14. Can we simulate transient states in Simulink.
a) True
b) False

15. Does this block take noise into account?

a) Yes
b) No
c) Sometimes
d) Only at high frequencies

16. What does the following toolbox do?

Simulink Control Design

a) Plots bode plots
b) Verifies circuit modelling
c) Calculates z transform
d) Calculates Fourier transform

17. What does the following block show?

a) The maximum value of a signal
b) The minimum value of a signal
c) The final value of a signal
d) The rms of a signal

18. What does the following block do?

a) Add a AC value to the input
b) Add a DC value to the signal
c) Add a noise to the signal
d) Add a white noise to the signal

19. What does the following block do?

a) Add a delay to the signal in frequency domain
b) Advance the signal in frequency domain
c) Shifts the signal in frequency domain
d) Gives an output as the function of the input

20. What is the name of the given block?

a) z-domain
b) Laplacian domain
c) Fourier domain
d) no domain

21. Simulink allows the simulation of systems using block diagrams.
a) True
b) False

22. What is the function of the following block?

a) Gives a 1 if the input is negative
b) Gives a 0 if input is negative
c) Gives a 1 if input is positive
d) Gives a 0 if input is positive

23. What are the transistors present in Simulink?
a) BC-547
b) IN3914
c) No transistor
d) User defined

24. How many sinusoids can this block generate simultaneously?

a) Only 1
b) Multiple
c) Only 1 at high frequency
d) Multiple with multiple frequency

25. What is the value of the constant supplied by the block?

a) 1
b) 0
c) User defined
d) Not available in MATLAB

26. What is the no. of bits used for the counter operation by the following block?

a) 3
b) 5
c) System defined
d) Minimum required

27. What is the reference power while converting to dB for the following block?

a) 1W
b) 1mW
c) 0
d) 20W

28. This block can be used in what kind of systems?

a) Logical
b) Continuous
c) Discrete
d) Any

29. What does this suggest?

a) The slope of the ramp function is 0
b) The slope of the ramp function is -1
c) The slope of the ramp function is 1
d) The value of the step function is 0

30. What is the function of this block?

a) Defining only continuous systems
b) Defining only discrete systems
c) Defining only digital systems
d) Defining both continuous and discrete systems

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