Aptitude Test C Programming For Data Types

Welcome to Your Quiz: Aptitude Test C Programming For Data Types

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1. Comment on the output of this C code?
    int main()
    {
        float f1 = 0.1;
        if (f1 == 0.1)
            printf("equal\n");
        else
            printf("not equal\n");
    }

equal

Output depends on compiler

None of the mentioned

not equal

2. Loss in precision occurs for typecasting from____________.

long to float

char to short

float to int

float to double

3. Which is correct with respect to size of the datatypes?

double > char > int

char > int > float

char < int < double

int > char > float

4. What is the output of this C code (on a 32-bit machine)?
    int main()
    {
        int x = 10000;
        double y = 56;
        int *p = &x;
        double *q = &y;
        printf("p and q are %d and %d", sizeof(p), sizeof(q));
        return 0;
    }

p and q are 4 and 8

Compiler error

p and q are 2 and 8

p and q are 4 and 4

5. Comment on the output of this C code?
    int main()
    {
        float f1 = 0.1;
        if (f1 == 0.1f)
            printf("equal\n");
        else
            printf("not equal\n");
    }

None of the mentioned

Output depends on compiler

equal

not equal

6. What is the output of this C code?
    int main()
    {
        float x = 'a';
        printf("%f", x);
        return 0;
    }

a.000000

97.000000

run time error

7. Comment on the output of this C code?
    int main()
    {
        int a[5] = {1, 2, 3, 4, 5};
        int i;
        for (i = 0; i < 5; i++)
            if ((char)a[i] == '5')
                printf("%d\n", a[i]);
            else
                printf("FAIL\n");
    }

Program will compile and print the ASCII value of 5

The compiler will flag an error

Program will compile and print FAIL for 5 times

Program will compile and print the output 5

8. What is short int in C programming?

Basic datatype of C

short is the qualifier and int is the basic datatype

Qualifier

All of the mentioned

9. What is the size of an int data type?

Depends on the system/compiler

2 Bytes

8 Bytes

4 Bytes

10. What is the output of this C code?
    int main()
    {
        float a = 5.477777777777;
        printf("%f", a);
    }

5.477

5.477778

5.477777

5.48

11. What is the output of this C code?
    int main()
    {
       char chr;
       chr = 128;
       printf("%d\n", chr);
       return 0;
    }

None of the mentioned

-128

128

12. Which of the following is a User-defined data type?

typedef int Boolean;

All of the mentioned

struct {char name[10], int age};

typedef enum {Mon, Tue, Wed, Thu, Fri} Workdays;

13. Select the odd one out with respect to type?

float

double

char

int

14. Which of the following % operation is invalid?

4 % 8;

Both (b) and (c)

4 % 8f;

4 % 8l;

15. The number of digits present after decimal in float is________.

16. The format identifier ‘%i’ is also used for _____ data type?

int

double

char

float

17. %f access specifier is used for?

None of the above

float type

Integer type

character type

18. Which data type is most suitable for storing a number 65000 in a 32-bit system?

short

double

int

long

19. What is the size of float in a 32-bit compiler?

20. Which of the datatypes have size that is variable?

double

struct

int

float

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Welcome to Your Quiz: Aptitude Test C Programming For Data Types

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Aptitude Test C Programming For Data Types

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