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Welcome to the MATLAB Basics MCQs Page

Dive deep into the fascinating world of MATLAB Basics with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of MATLAB Basics, a crucial aspect of MATLAB. In this section, you will encounter a diverse range of MCQs that cover various aspects of MATLAB Basics, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MATLAB.

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Check out the MCQs below to embark on an enriching journey through MATLAB Basics. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MATLAB.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of MATLAB Basics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

MATLAB Basics MCQs | Page 14 of 17

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Q131.
How do we access a global variable in nested functions?

a.

Simply seek the variable from the primary function

b.

Make a copy of the global variables from the primary function

c.

Declare the variable within the function

d.

Declare the variable as global

Discuss
Answer: (d).Declare the variable as global
Q132.
How does MATLAB help in passing function arguments?

a.

By call by value and call by reference

b.

Only by call by value

c.

Only by call by reference

d.

By call by address

Discuss
Answer: (a).By call by value and call by reference
Q133.
Which line is treated as H1 line?

a.

Comment line succeeding function definition

b.

Comment line preceding function definition

c.

Comment line after function

d.

All lines before and after function definition

Discuss
Answer: (c).Comment line after function
Q134.
Find the error returned by MATLAB: 
syms a x y; a = xˆ2 + yˆ2;    subs(a, [x,y], (2,3,4))

a.

There is no subs command in MATLAB

b.

The subs command has syntactical error

c.

The subs command has extra input arguments

d.

The subs command has incorrect arguments

Discuss
Answer: (b).The subs command has syntactical error
Q135.
Predict the error, MATLAB will generate, in the following line of code: 
 g = inline(‘3x+5*x’, ‘t’)

a.

No error

b.

Syntactical error

c.

Wrong arguments

d.

Expecting (,{ or [

Discuss
Answer: (a).No error
Q136.
What are the functions to see the graph of a continuous and a discrete function?

a.

plot() and stem()

b.

cont() and disc()

c.

plot() and disc()

d.

cont() and stem()

Discuss
Answer: (a).plot() and stem()
Q137.
Find the error in the following code. 
x=-10:1:10; y=-10:2:10; plot(x,y)

a.

Plot is not available in MATLAB

b.

Syntax of plot is wrong

c.

Length of x and y should be same

d.

No error

Discuss
Answer: (c).Length of x and y should be same
Q138.
What is the output in the following code? 
x=-10:1:10; y=-10:1:10;axis(‘off’); plot(x,y)

a.

Error

b.

A graph will be shown without axes

c.

A graph will be shown with axes

d.

2 graphs will be shown- one with axes and with no axes

Discuss
Answer: (c).A graph will be shown with axes
Q139.
If we want to plot matrix arguments, which of the following gets plotted?

a.

Column wise inter-relation of two arguments

b.

Row wise inter-relation of two arguments

c.

Diagonally inter-relation of two arguments

d.

The arguments are incomprehensible

Discuss
Answer: (a).Column wise inter-relation of two arguments
Q140.
To bring the scale of each axis to logarithmically spaced, the student entered ‘semilogx()’. What really happened?

a.

The plot will appear with both axis now logarithmically spaced

b.

semilogx() is an invalid function

c.

The plot will appear with x axis logarithmically spaced

d.

Error

Discuss
Answer: (c).The plot will appear with x axis logarithmically spaced
Page 14 of 17

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