C Programming – Float Datatype

C Programming - Float Datatype

Question 1

 The number of digits present after decimal in float is________.

A	1
B	3
C	6
D	16

Question 2

Which among the following is never possible as an output for float?

A	3.666666
B	3.666
C	3
D	None of the mentioned

Question 3

In a 32-bit compiler, which 2 types have same size?

A	char and short
B	short and int
C	int and float
D	float and double

Question 4

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

A	1
B	2
C	4
D	8

Question 5

 Loss in precision occurs for typecasting from____________.

A	char to short
B	float to double
C	long to float
D	float to int

Question 6

For union

    union temp
    {
    char a;
    int b;
    float c;
    };

A	char
B	int
C	float
D	Both (b) and (c)

Question 7

%f access specifier is used for

A	Strings
B	Integral types
C	Floating type
D	All of the mentioned

Question 8

 Select the odd one out with respect to type?

A	char
B	int
C	long
D	float

Question 9

What is the output of this C code?

    #include 
    printf("%.0f", 2.89);

A	2.890000
B	2.89
C	2
D	3

Question 10

What is the output of this C code?

    #include 
    int main()
    {
    float a = 2.455555555555;
    printf("%f", a);
    }

A	2.455555
B	2.455556
C	2.456
D	2.46

Question 11

 Which of the following % operation is invalid?

A	2 % 4;
B	2 % 4l;
C	2 % 4f;
D	Both (b) and (c)

Question 12

Which data type is suitable for storing a number like?     10.0000000001

A	int
B	float
C	double
D	Both (b) and (c)

Question 13

Modulus for float could be achieved by?

A	a % b
B	modulus(a, b);
C	fmod(a, b);
D	mod(a, b);

Question 14

 Predict the data type of the following mathematical operation?     2 * 9 + 3 / 2 . 0

A	int
B	long
C	float
D	double

Question 15

%lf is used to display

A	float
B	long float
C	double
D	All of the mentioned

Check Your Answers:

  1. C

  2. D

  3. C

  4. C

  5. D

  6. D

  7. C

  8. D

  9. D

10. A

11. C

12. C

13. C

14. D

15. C

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