Computer Programming for Engineers (Practice Test MCQs)

50 Score: 0 Attempted: 0/50

1. Which of the following is a high-level programming language?
(A) Assembly language
(B) Machine language
(C) C++
(D) Binary code

2. The process of finding and correcting errors in a program is called:
(A) Compiling
(B) Debugging
(C) Assembling
(D) Coding

3. In C programming, which symbol is used to terminate a statement?
(A) ,
(B) .
(C) ;
(D) :

4. A variable declared inside a function is called:
(A) Global variable
(B) Local variable
(C) Static variable
(D) External variable

5. Which operator is used to compare two values in most programming languages?
(A) =
(B) ==
(C) :=
6. The term “IDE” stands for:
(A) Integrated Data Environment
(B) Internal Development Editor
(C) Integrated Development Environment
(D) Internet Development Engine

7. Which of the following is a loop structure in C/C++?
(A) if-else
(B) switch
(C) for
(D) case

8. What is the output of printf(“%d”, 5 + 3); in C?
(A) 53
(B) 8
(C) 5+3
(D) Error

9. The keyword used to define a constant in C is:
(A) fixed
(B) #define
(C) constant
(D) static

10. Which data type is used to store a single character in C?
(A) char
(B) int
(C) float
(D) string

11. Which of the following is an example of a conditional statement?
(A) for loop
(B) while loop
(C) if-else
(D) do-while

12. What does the break statement do in loops?
(A) Ends the program
(B) Exits the loop
(C) Skips one iteration
(D) Restarts the loop

13. An array in C starts with index:
(A) 1
(B) 0
(C) -1
(D) 2

14. Which of the following is used for dynamic memory allocation in C?
(A) malloc()
(B) scanf()
(C) printf()
(D) fopen()

15. The return statement is used in a function to:
(A) End the function
(B) Return a value
(C) Both A and B
(D) None of these

16. Which symbol is used to denote comments in C++ (single line)?
(A) /* */
(B) //
(D) ##

17. A function that calls itself is known as:
(A) Iterative function
(B) Recursive function
(C) Inline function
(D) Static function

18. The default value of an uninitialized variable in C is:
(A) 0
(B) 1
(C) Garbage value
(D) Null

19. The main function in C/C++ is:
(A) void()
(B) start()
(C) main()
(D) init()

20. Which header file is required for printf() function?
(A) stdio.h
(B) conio.h
(C) iostream
(D) string.h

21. In object-oriented programming, encapsulation means:
(A) Hiding implementation details
(B) Code repetition
(C) Using multiple classes
(D) Data conversion

22. Which operator is used to access members of a structure in C?
(A) ->
(B) .
(C) ::
(D) &

23. Which of the following is a logical operator?
(A) +
(B) &&
(C) =
(D) %

24. The term float represents:
(A) Integer data type
(B) Character data type
(C) Real numbers with decimals
(D) String data type

25. Which of these is not a programming language?
(A) Python
(B) Java
(C) HTML
(D) C++

26. The sizeof() operator in C is used to:
(A) Measure memory size of a variable
(B) Count number of variables
(C) Find length of string
(D) None of these

27. The process of converting source code into machine code is called:
(A) Linking
(B) Compiling
(C) Executing
(D) Debugging

28. The extension of a C program file is:
(A) .cpp
(B) .java
(C) .c
(D) .py

29. Which keyword is used to define a class in C++?
(A) define
(B) class
(C) struct
(D) new

30. What is the purpose of a constructor in C++?
(A) Destroy an object
(B) Initialize an object
(C) Copy data
(D) None of these

31. Which of the following is not a loop structure?
(A) for
(B) while
(C) do-while
(D) switch

32. The keyword void indicates:
(A) Integer return type
(B) Character return type
(C) No return type
(D) Boolean return type

33. The file handling function used to open a file in C is:
(A) fopen()
(B) open()
(C) startfile()
(D) createfile()

34. What is the output of: printf("%c", 65); ?
(A) 65
(B) A
(C) a
(D) Error

35. A pointer in C stores:
(A) Value of a variable
(B) Address of a variable
(C) Data type of a variable
(D) Size of a variable

36. In C++, which operator is overloaded for object comparison?
(A) ==
(B) =
(C) &
(D) ++

37. Which function is used to read a string in C?
(A) scanf()
(B) gets()
(C) getchar()
(D) printf()

38. What is the main advantage of using functions in programming?
(A) Code duplication
(B) Code modularity
(C) Increases memory usage
(D) Slows down execution

39. In C, int x = 5/2; will store:
(A) 2.5
(B) 2
(C) 3
(D) Error

40. Which of the following is a valid variable name?
(A) 1number
(B) number_1
(C) number-1
(D) number 1

41. The keyword new in C++ is used to:
(A) Delete memory
(B) Allocate memory dynamically
(C) Create a new variable
(D) None of these

42. Which loop executes at least once, even if the condition is false?
(A) for
(B) while
(C) do-while
(D) if

43. A string in C is:
(A) An array of integers
(B) An array of characters ending with '\0'
(C) A data type
(D) None of these

44. The ASCII code for '0' is:
(A) 48
(B) 49
(C) 50
(D) 65

45. Which keyword is used to handle exceptions in C++?
(A) catch
(B) try
(C) throw
(D) All of these

46. The process of calling a function within itself is called:
(A) Iteration
(B) Recursion
(C) Looping
(D) Nesting

47. The operator used to access a pointer’s value is:
(A) *
(B) &
(C) ->
(D) %

48. What is the size of int in most 32-bit systems?
(A) 2 bytes
(B) 4 bytes
(C) 8 bytes
(D) 16 bytes

49. Which function is used to close a file in C?
(A) fclose()
(B) closefile()
(C) stopfile()
(D) endfile()

50. The modulus operator (%) gives:
(A) Quotient
(B) Remainder
(C) Square
(D) Division result

Computer Programming for Engineers (Practice Test MCQs)

1. Basic/Foundation Subjects

2. Core Civil Engineering Subjects

3. Advanced/Applied Subjects

4. Management and Planning

5. Environmental & Sustainable Development