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PPS MCQs - Unit-1
1. Which of the following is a primary role of a compiler?
A . Execute code
B . Translate source code into machine code
C . Debug programs
D . Store data
2. In C programming, what is the data type that can store decimal numbers?
A . int
B . char
C . float
D . bool
3. What type of error occurs when the syntax of the code is incorrect?
A . Logical error
B . Runtime error
C . Syntax error
D . Compilation error
4. Which of the following storage classes in C has a scope limited to the block in which it is defined?
A . extern
B . static
C . register
D . auto
5. What does the `printf` function primarily do?
A . Reads user input
B . Outputs formatted data to the console
C . Compiles code
D . Stores data
6. Which operator is used for bitwise AND operation in C?
A . &&
B . &
C . ||
D . |
7. In a switch-case statement, what is the purpose of the `default` case?
A . To handle all cases
B . To terminate the program
C . To handle unspecified cases
D . To execute the first case
8. Which loop in C will always execute at least once?
A . for loop
B . while loop
C . do-while loop
D . none of the above
9. What is the correct way to declare an integer variable in C?
A . int 1number;
B . int number;
C . number int;
D . int number[];
10. Which of the following is not a valid C data type?
A . int
B . float
C . string
D . char
11. What does the `goto` statement do in C?
A . Jump to a specific line of code
B . End the program
C . Loop through an array
D . Conditional branching
12. Which command line argument is typically used to pass input to a C program?
A . -input
B . argv
C . argc
D . input
13. In C, what will be the output of printf("%d", 5 + 3 * 2);
A . 16
B . 11
C . 8
D . 10
14. Which of the following correctly describes a prime number?
A . A number that has more than two factors
B . A number that can be divided only by 1 and itself
C . A negative number
D . Any integer greater than 0
15. What is the output of the following code snippet? printf("%c", `A` + 1);
A . A
B . B
C . C
D . 66
16. In a flowchart, what does the diamond shape represent?
A . Start/End
B . Process
C . Input/Output
D . Decision
17. Which operator is used for bitwise OR operation in C?
A . &
B . |
C . ^
D . ~
18. What type of loop would you use when the number of iterations is not known beforehand?
A . for loop
B . while loop
C . do-while loop
D . foreach loop
19. What is the purpose of `extern` storage class?
A . To define a variable in the local scope
B . To make a variable available across multiple files
C . To create a static variable
D . To allocate dynamic memory
20. Which of the following is a correct declaration of a float variable in C?
A . float number = 5.5;
B . float number(5.5);
C . float number : 5.5;
D . float number[5.5];
21. In C, how do you indicate a comment that spans multiple lines?
A . // comment
B . /* comment */
C . # comment
D . ** comment **
22. What does the `sizeof` operator do in C?
A . Returns the size of a variable in bits
B . Returns the size of a variable in bytes
C . Allocates memory
D . Converts data types
23. Which of the following is an example of a logical error?
A . Missing semicolon
B . Infinite loop
C . Incorrect output despite correct syntax
D . Using undeclared variable
24. What is the result of the expression 5 & 3 in C?
A . 8
B . 2
C . 0
D . 1
25. Which of the following is an example of explicit type casting in C?
A . int x = 5.6;
B . float y = (float)7;
C . char z = `A` + 32;
D . double w = 3 / 2;
26. A user wants to calculate the area of a rectangle with a length of 5 and a width of 10. Which algorithm would best describe the solution?
A . Area = Length + Width
B . Area = Length × Width
C . Area = Length / Width
D . Area = Length - Width
27. You are designing an app to determine if a user’s age qualifies for a senior citizen discount. What conditional statement would you use?
A . if age > 60
B . if age < 60
C . if age == 60
D . if age >= 60
28. A program needs to find the maximum score from a list of exam scores. Which storage class would be best for the maximum score variable within the function?
A . static
B . extern
C . auto
D . register
29. You want to print a message in a C program indicating successful completion of a task. Which output function would you use?
A . printf("Task completed successfully.");
B . scanf("Task completed successfully.");
C . input("Task completed successfully.");
D . output("Task completed successfully.");
30. When compiling a program, what is generated that the operating system can execute directly?
A . Source code
B . Pseudocode
C . Object code
D . Flowchart
31. A grocery store wants to calculate discounts for products. If the original price is $50 and the discount is 20%, what should be the new price calculated using C?
A . New Price = 50 - (50 * 0.2)
B . New Price = 50 + (50 * 0.2)
C . New Price = 50 / 0.2
D . New Price = 50 * 0.2
32. If you want to iterate through a list of customer names using a loop, which loop structure would be most appropriate if you know the number of names?
A . while loop
B . for loop
C . do-while loop
D . goto loop
33. Which loop in C is used when you want the loop to execute at least once?
A . for loop
B . while loop
C . do-while loop
D . if-else loop
34. A program needs to read a user`s input for their favorite fruit. Which function would you use?
A . output()
B . printf()
C . scanf()
D . read()
35. To track a global variable used across multiple files in a project, which storage class should you choose?
A . static
B . auto
C . extern
D . register
36. If you want to store a list of ages, which data type would be most appropriate in C?
A . float
B . char
C . int
D . double
37. Which bitwise operation would you use to toggle a specific bit in a number?
A . AND
B . OR
C . XOR
D . NOT
38. To find the minimum number in a list of temperatures, which pseudocode step is essential?
A . Initialize a variable to store the maximum temperature.
B . Compare each temperature with the current minimum.
C . Calculate the average temperature.
D . Sort the list of temperatures.
39. Which type of error occurs when the program runs but produces incorrect results?
A . Compilation error
B . Syntax error
C . Runtime error
D . Logical error
40. In a program to determine eligibility for voting, which conditional structure would you use to check if a person is over 18 years old?
A . switch-case
B . if-else
C . for loop
D . do-while
41. A function needs to output a formatted date, such as "Today is: 2024-10-16". Which C function is best for this?
A . scanf()
B . print()
C . printf()
D . output()
42. You are writing a program to find out how many times a user can afford a $10 movie ticket with $100. Which operator would you use?
A . +
B . -
C . /
D . *
43. To create a simple menu for user choices, which structure would be most appropriate?
A . if-else
B . switch-case
C . for loop
D . while loop
44. Which statement correctly identifies the output of printf("%d", 10 >> 1);?
A . 5
B . 10
C . 20
D . 0
45. When reading a floating-point number from user input, which format specifier should you use in scanf?
A . %d
B . %f
C . %c
D . %s
46. In a project that requires a calculation for the area of a triangle, what formula would you represent in pseudocode?
A . Area = base + height
B . Area = 0.5 * base * height
C . Area = base / height
D . Area = base - height
47. Which logical operator would you use to check if a number is both even and greater than zero?
A . OR
B . AND
C . NOT
D . XOR
Fill in the Blanks
48. A ______________ is a software tool that translates high-level programming code into machine code or an intermediate code.
49. After compilation, the result is typically an ______________ file, which can be executed directly by the computer.
50. The first step in program execution is the ______________ phase, where the operating system loads the program into memory.
51. A ______________ is a step-by-step set of instructions for solving a specific problem.
52. Flowcharts are a graphical way to represent algorithms using ______________ and ______________.
53. In a flowchart, a rectangle is used to represent a ______________.
54. ______is a programming paradigm that promotes the use of functions or procedures to break a program into smaller, manageable parts.
55. A variable`s ____________ defines the type of data it can hold.
56. The size of the char data type in C is ____________ bytes.
57. A ____________ error occurs when the code violates the rules of the programming language.
58. Logical errors can lead to incorrect program ____________.
59. In the expression 5 + 3 * 2, the multiplication operator * has higher ____________ than the addition operator +.
60. In C, the result of integer division, such as 7 / 3, is ____________.
61. The ____________ storage class specifies that a variable`s value is retained between function calls.
62. The ____________ storage class is used to declare global variables.
63. Explicit type conversion is also known as ____________.
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☞ PPS MCQs - Unit-1 - [ PPS ]
☞ PPS MCQs - Unit-2 - [ PPS ]
☞ PPS MCQs - Unit-3 - [ PPS ]
☞ PPS MCQs - Unit-4 - [ PPS ]
☞ PPS MCQs - Unit-5 - [ PPS ]
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