MATLAB Quiz – MATLAB Multiple Choice Questions and Answers

MATLAB Quiz – MATLAB Multiple Choice Questions and Answers: Hello aspirants!! have you been looking for Matlab MCQs? then here are the MATLAB MCQ Questions and Answers exclusively for you. If you desire to test your knowledge of the MATLAB Concept then, Matlab MCQ & Online Quiz that is provided here will be productive for you. The series of MATLAB Multiple Choice Questions and Answers which are accommodated in this post will come in handy for you to practice frequently. And in order to ace the MATLAB Quiz you need to be aware of the MATLAB concept, so check out the below section briefly to know the MATLAB concept and proceed to answer the Matlab MCQ questions.

MATLAB Quiz

MATLAB is a powerful programming language and computing environment widely used in engineering, science, and mathematics. Developed by MathWorks, MATLAB has become an essential tool for data analysis, visualization, and numerical computation. Whether you’re a student, researcher, or engineer, having a good command of MATLAB can enhance your analytical skills and boost your productivity. Take help from this Matlab MCQ & Online Quiz to enhance your knowledge.

MATLAB Multiple Choice Questions

Quiz Name	MATLAB Quiz
Exam Type	MCQ (Multiple Choice Questions)
Category	Technical Quiz
Mode of Quiz	Online

Top 47 MATLAB MCQs with Answers | MATLAB Quiz

1. What does MATLAB stand for?

A) Math Analysis Language Tool
B) Matrix Analysis Language Tool
C) Mathematical Analysis Language
D) Matrix Laboratory

Answer: D) Matrix Laboratory.

Explanation: MATLAB stands for Matrix Laboratory, and it is a programming language developed by MathWorks for technical computing.

2. Which command in MATLAB is used to create a new variable?

A) new
B) var
C) create
D) let

Answer: B) var.

Explanation: The ‘var’ command is used to create a new variable in MATLAB)

3. What is the default extension of a MATLAB script file?

A) .mat
B) .m
C) .md
D) .txt

Answer: B) .m.

Explanation: The default extension of a MATLAB script file is .m.

4. Which of the following statements is used to create a for loop in MATLAB?

A) while
B) do-while
C) for
D) repeat-until

Answer: C) for.

Explanation: The ‘for’ statement is used to create a for loop in MATLAB)

5. Which command in MATLAB is used to display the contents of a variable?

A) show
B) display
C) disp
D) print

Answer: C) disp.

Explanation: The ‘disp’ command is used to display the contents of a variable in MATLAB)

6. What is the result of the following expression in MATLAB: 3 + 5 * 2

A) 16
B) 13
C) 11
D) 15

Answer: D) 15.

Explanation: The expression is evaluated using the order of operations, so the multiplication is done first, followed by the addition. Thus, the result is 3 + 10 = 15.

7. Which of the following commands is used to create a matrix with all elements set to 0?

A) zeros
B) ones
C) eye
D) rand

Answer: A) zeros.

Explanation: The ‘zeros’ command is used to create a matrix with all elements set to 0.

8. Which of the following commands is used to calculate the square root of a number in MATLAB?

A) sqrt
B) root
C) power
D) exp

Answer: A) sqrt.

Explanation: The ‘sqrt’ command is used to calculate the square root of a number in MATLAB)

9. Which of the following commands is used to generate a random number in MATLAB?

A) random
B) rand
C) randn
D) randomize

Answer: B) ranD)

Explanation: The ‘rand’ command is used to generate a random number in MATLAB)

10. Which of the following commands is used to read input from the user in MATLAB?

A) input
B) read
C) readln
D) get

Answer: A) input.

Explanation: The ‘input’ command is used to read input from the user in MATLAB)

11. What is the result of the following code in MATLAB:

a = [1 2 3; 4 5 6];
b = [7 8 9; 10 11 12];
c = a + b;

A) [8 10 12; 14 16 18]
B) [7 8 9 10 11 12]
C) [7 10 12; 14 16 18]
D) [8 11 14; 17 20 23]

Answer: D) [8 11 14; 17 20 23].

Explanation: The code creates two matrices, ‘a’ and ‘b’, and then adds them together using the ‘+’ operator. The resulting matrix ‘c’ is:

1+7 2+7 3+9
4+10 5+11 6+12
which simplifies to:
[8 11 14;
17 20 23]

12. Which command in MATLAB is used to create a plot?

A) plot
B) createplot
C) drawplot
D) makeplot

Answer: A) plot.

Explanation: The ‘plot’ command is used to create a plot in MATLAB)

13. Which of the following commands is used to find the maximum element of a matrix in MATLAB?

A) min
B) max
C) maximum
D) findmax

Answer: B) max.

Explanation: The ‘max’ command is used to find the maximum element of a matrix in MATLAB)

14. Which of the following commands is used to concatenate two matrices vertically in MATLAB?

A) horzcat
B) vertcat
C) cat
D) merge

Answer: B) vertcat.

Explanation: The ‘vertcat’ command is used to concatenate two matrices vertically in MATLAB)

15. Which of the following commands is used to calculate the dot product of two vectors in MATLAB?

A) dot
B) cross
C) inner
D) product

Answer: A) dot.

Explanation: The ‘dot’ command is used to calculate the dot product of two vectors in MATLAB)

16. What is the result of the following code in MATLAB:

x = 1:5;
y = x.^2;

A) x = [1 2 3 4 5], y = [1 4 9 16 25]
B) x = [1 2 3 4 5], y = [2 4 6 8 10]
C) x = [1 2 3 4 5], y = [1 2 3 4 5]
D) x = [1 2 3 4 5], y = [1 3 5 7 9]

Answer: A) x = [1 2 3 4 5], y = [1 4 9 16 25].

Explanation: The code creates a vector ‘x’ with values 1 through 5, and then creates a new vector ‘y’ by squaring each element of ‘x’. The resulting vector ‘y’ is [1 4 9 16 25].

17. Which of the following commands is used to convert a string to uppercase in MATLAB?

A) upper
B) toUpperCase
C) toUpper
D) uppercase

Answer: A) upper.

Explanation: The ‘upper’ command is used to convert a string to uppercase in MATLAB)

18. Which of the following commands is used to round a number to the nearest integer in MATLAB?

A) round
B) ceil
C) floor
D) fix

Answer: A) rounD)

Explanation: The ’round’ command is used to round a number to the nearest integer in MATLAB)

19. Which of the following commands is used to find the indices of the non-zero elements in a matrix in MATLAB?

A) nonzero
B) find
C) index
D) locate

Answer: B) finD)

Explanation: The ‘find’ command is used to find the indices of the non-zero elements in a matrix in MATLAB)

20. What is the result of the following code in MATLAB:

x = 0:pi/10:2*pi;
y = sin(x);

A) x is a vector with 11 elements, y is a vector with 11 elements
B) x is a vector with 21 elements, y is a vector with 21 elements
C) x is a vector with 11 elements, y is a vector with 21 elements
D) x is a vector with 21 elements, y is a vector with 11 elements

Answer: B) x is a vector with 21 elements, y is a vector with 21 elements.

Explanation: The code creates a vector ‘x’ with values ranging from 0 to 2*pi in increments of pi/10, and then creates a new vector ‘y’ by taking the sine of each element of ‘x’. The resulting vectors ‘x’ and ‘y’ both have 21 elements.

21. Which of the following commands is used to generate a random number between 0 and 1 in MATLAB?

A) random
B) rand
C) randomize
D) randn

Answer: B) ranD)

Explanation: The ‘rand’ command is used to generate a random number between 0 and 1 in MATLAB)

22. Which of the following commands is used to calculate the inverse of a matrix in MATLAB?

A) inverse
B) inv
C) transpose
D) invert

Answer: B) inv.

Explanation: The ‘inv’ command is used to calculate the inverse of a matrix in MATLAB)

23. Which of the following commands is used to calculate the square root of a number in MATLAB?

A) sqrt
B) square
C) squareroot
D) root

Answer: A) sqrt.

Explanation: The ‘sqrt’ command is used to calculate the square root of a number in MATLAB)

24. Which of the following commands is used to calculate the transpose of a matrix in MATLAB?

A) transpose
B) trans
C) t
D) tr

Answer: C) t.

Explanation: The ‘t’ command is used to calculate the transpose of a matrix in MATLAB)

25. What is the result of the following code in MATLAB:

x = [1 2; 3 4];
y = [5 6; 7 8];
z = x*y;

A) z = [7 10; 15 22]
B) z = [19 22; 43 50]
C) z = [11 14; 23 26]
D) z = [12 15; 18 21]

Answer: B) z = [19 22; 43 50].

Explanation: The code creates two 2×2 matrices ‘x’ and ‘y’, and then multiplies them using the * operator to create a new matrix ‘z’. The resulting matrix ‘z’ is [19 22; 43 50].

26. Which of the following commands is used to calculate the determinant of a matrix in MATLAB?

A) det
B) determinant
C) detmat
D) matdet

Answer: A) det.

Explanation: The ‘det’ command is used to calculate the determinant of a matrix in MATLAB)

27. Which of the following commands is used to calculate the mean of a matrix in MATLAB?

A) mean
B) avg
C) average
D) matmean

Answer: A) mean.

Explanation: The ‘mean’ command is used to calculate the mean of a matrix in MATLAB)

28. Which of the following commands is used to calculate the standard deviation of a matrix in MATLAB?

A) stddev
B) stdev
C) std
D) deviation

Answer: C) stD)

Explanation: The ‘std’ command is used to calculate the standard deviation of a matrix in MATLAB)

29. Which of the following commands is used to create a diagonal matrix in MATLAB?

A) diag
B) diagonal
C) diags
D) matdiag

Answer: A) diag.

Explanation: The ‘diag’ command is used to create a diagonal matrix in MATLAB)

30. What is the result of the following code in MATLAB:

x = [1 2 3];
y = [4 5 6];
z = [7 8 9];
a = [x; y; z];

A) a = [1 2 3; 4 5 6; 7 8 9]
B) a = [1 4 7; 2 5 8; 3 6 9]
C) a = [1 2 3 4 5 6 7 8 9]
D) a = [1 2 3; 4 5 6; 7 8 9;]

Answer: B) a = [1 4 7; 2 5 8; 3 6 9].

Explanation: The code creates three 1×3 row vectors ‘x’, ‘y’, and ‘z’, and then combines them into a 3×3 matrix ‘a’ using the semicolon (;) operator. The resulting matrix ‘a’ is [1 4 7; 2 5 8; 3 6 9].

31. Which of the following commands is used to find the maximum value in a matrix in MATLAB?

A) maxval
B) max
C) maximum
D) matmax

Answer: B) max.

Explanation: The ‘max’ command is used to find the maximum value in a matrix in MATLAB)

32. Which of the following commands is used to find the minimum value in a matrix in MATLAB?

A) minval
B) min
C) minimum
D) matmin

Answer: B) min.

Explanation: The ‘min’ command is used to find the minimum value in a matrix in MATLAB)

33. Which of the following commands is used to calculate the dot product of two vectors in MATLAB?

A) dot
B) product
C) dotprod
D) vecdot

Answer: A) dot.

Explanation: The ‘dot’ command is used to calculate the dot product of two vectors in MATLAB)

34. Which of the following commands is used to calculate the cross product of two vectors in MATLAB?

A) crossprod
B) cross
C) veccross
D) xprod

Answer: B) cross.

Explanation: The ‘cross’ command is used to calculate the cross product of two vectors in MATLAB)

35. Which of the following commands is used to calculate the norm of a vector in MATLAB?

A) norm
B) vecnorm
C) vectornorm
D) normvec

Answer: A) norm.

Explanation: The ‘norm’ command is used to calculate the norm of a vector in MATLAB)

36. Which of the following commands is used to calculate the eigenvalues of a matrix in MATLAB?

A) eig
B) eigen
C) eigm
D) mat_eig

Answer: A) eig.

Explanation: The ‘eig’ command is used to calculate the eigenvalues of a matrix in MATLAB)

37. Which of the following commands is used to create a sparse matrix in MATLAB?

A) spr
B) sparse
C) sparsify
D) sp_matrix

Answer: B) sparse.

Explanation: The ‘sparse’ command is used to create a sparse matrix in MATLAB)

38. Which of the following commands is used to resize an array in MATLAB?

A) size
B) reshape
C) resize
D) arrayresize

Answer: B) reshape.

Explanation: The ‘reshape’ command is used to resize an array in MATLAB)

39. Which of the following commands is used to concatenate two matrices horizontally in MATLAB?

A) horzcat
B) cat
C) concat
D) hcat

Answer: A) horzcat.

Explanation: The ‘horzcat’ command is used to concatenate two matrices horizontally in MATLAB)

40. Which of the following commands is used to concatenate two matrices vertically in MATLAB?

A) vertcat
B) cat
C) concat
D) vcat

Answer: A) vertcat.

Explanation: The ‘vertcat’ command is used to concatenate two matrices vertically in MATLAB)

41. Which of the following commands is used to generate a random number between 0 and 1 in MATLAB?

A) rand
B) randn
C) randi
D) random

Answer: A) ranD)

Explanation: The ‘rand’ command is used to generate a random number between 0 and 1 in MATLAB)

42. Which of the following commands is used to generate a random integer between two specified values in MATLAB?

A) rand
B) randn
C) randi
D) random

Answer: C) randi.

Explanation: The ‘randi’ command is used to generate a random integer between two specified values in MATLAB)

43. Which of the following commands is used to generate an array of normally distributed random numbers in MATLAB?

A) rand
B) randn
C) randi
D) random

Answer: B) randn.

Explanation: The ‘randn’ command is used to generate an array of normally distributed random numbers in MATLAB)

44. Which of the following commands is used to round a number up to the nearest integer in MATLAB?

A) ceil
B) floor
C) round
D) int

Answer: A) ceil.

Explanation: The ‘ceil’ command is used to round a number up to the nearest integer in MATLAB)

45. Which of the following commands is used to round a number down to the nearest integer in MATLAB?

A) ceil
B) floor
C) round
D) int

Answer: B) floor.

Explanation: The ‘floor’ command is used to round a number down to the nearest integer in MATLAB)

46. Which of the following commands is used to create a plot in MATLAB?

A) plot
B) createplot
C) plotgraph
D) drawplot

Answer: A) plot.

Explanation: The ‘plot’ command is used to create a plot in MATLAB)

47. Which of the following commands is used to create a scatter plot in MATLAB?

A) plot
B) scatter
C) scatterplot
D) plotscatter

Answer: B) scatter.

Explanation: The ‘scatter’ command is used to create a scatter plot in MATLAB

The MATLAB MCQs with answers provide a valuable resource for anyone seeking to improve their skills in this powerful programming language. By testing your knowledge and providing detailed explanations, these Top Matlab Objective Questions offer an excellent opportunity to deepen your understanding of MATLAB and its many applications. Whether you’re a student, researcher, or engineer, mastering MATLAB can help you excel in your field and achieve your goals. Stay tuned to our Freshersnow.com website to get more updates on technical quizzes.