Learn C MCQs

Prepare C MCQs (Multiple choice Questions) for exam and job interviews.

What will be the output of printf("%d", 5 & 3);?

1) 1

2) 0

3) 3

4) 2

Answer : Option 1

Which of the following is the correct syntax to define a function in C?

1) returnType functionName() {}

2) functionName() returnType {}

3) void functionName {}

4) None of the above

Answer : Option 1

What is the output of printf("%d", 10 / 2 + 3);?

1) 8

2) 5

3) 10

4) 6

Answer : Option 1

Which of the following correctly declares a two-dimensional array?

1) int arr[3][4];

2) int arr(3)(4);

3) int arr{3}{4};

4) int arr[3,4];

Answer : Option 1

What will be the output of printf("%d", (1 << 3));?

1) 8

2) 16

3) 4

4) 2

Answer : Option 1

Which of the following is the correct way to define a function with parameters in C?

1) void function(int a, int b) {}

2) function(int a, int b) {}

3) void function() {int a, b;}

4) None of the above

Answer : Option 1

What is the output of printf("%d", 4 + 2 / 2);?

1) 5

2) 6

3) 4

4) 7

Answer : Option 1

Which of the following is true about the `sizeof` operator?

1) It returns the size of the variable in bytes.

2) It can be used with any data type.

3) It returns a constant value.

4) All of the above

Answer : Option 4

What will be the output of printf("%d", 7 - 2 * 3);?

1) 1

2) 4

3) 3

4) 0

Answer : Option 1

Which of the following correctly defines a pointer to an integer?

1) int *p;

2) int p*;

3) *int p;

4) None of the above

Answer : Option 1