Q.1

What will be the output of the program?

#include<stdio.h>
int main()
{
    float f=43.
    printf("%e, ", f);
    printf("%f, ", f);
    printf("%g", f);
    return
}
  • 4.320000e+01, 43.200001, 43.2
  • 4.3, 43.22, 43.21
  • 4.3e, 43.20f, 43.00
  • Error
Q.2

We want to round off x, a float, to an int value, The correct way to do is

  • y = (int)(x + 0.5)
  • y = int(x + 0.5)
  • y = (int)x + 0.5
  • y = (int)((int)x + 0.5)
Q.3

What will be the output of the program?

#include<stdio.h>
int main()
{
    float a=0.
    if(a < 0.7f)
        printf("C\n");
    else
        printf("C++\n");
    return
}
  • C
  • C++
  • Compiler error
  • Non of above
Q.4

The binary equivalent of 5.is

  • 101.101110111
  • 101.011
  • 101011
  • None of above
Q.5

What are the different types of real data type in C ?

  • float, double
  • short int, double, long int
  • float, double, long double
  • double, long int, float
Q.6

What will be the output of the program?

#include<stdio.h>
int main()
{
    float a=0.
    if(a < 0.
        printf("C\n");
    else
        printf("C++\n");
    return
}
  • C
  • C++
  • Compiler error
  • Non of above
Q.7

What will be the output of the program?

#include<stdio.h>
#include<math.h>
int main()
{
    float n=1.
    printf("%f, %f\n", ceil(n), floor(n));
    return
}
  • 2.000000, 1.000000
  • 1.500000, 1.500000
  • 1.550000, 2.000000
  • 1.000000, 2.000000
Q.8

A float occupies 4 bytes. If the hexadecimal equivalent of these 4 bytes are A, B, C and D, then when this float is stored in memory in which of the following order do these bytes gets stored?

  • ABCD
  • DCBA
  • 0xABCD
  • Depends on big endian or little endian architecture
Q.9

What will you do to treat the constant 3.as a long double?

  • use 3.14LD
  • use 3.14L
  • use 3.14DL
  • use 3.14LF
Q.10

What will be the output of the program?

#include<stdio.h>
int main()
{
    float *p;
    printf("%d\n", sizeof(p));
    return}
  • 2 in 16bit compiler, 4 in 32bit compiler
  • 4 in 16bit compiler, 2 in 32bit compiler
  • 4 in 16bit compiler, 4 in 32bit compiler
  • 2 in 16bit compiler, 2 in 32bit compiler
Q.11

What will be the output of the program?

#include<stdio.h>
int main()
{
    float d=2.    printf("%e,", d);
    printf("%f,", d);
    printf("%g,", d);
    printf("%lf", d);
    return}
  • 2.2, 2.50, 2.50, 2.5
  • 2.2e, 2.25f, 2.00, 2.25
  • 2.250000e+000, 2.250000, 2.25, 2.250000
  • Error
Q.12

What will you do to treat the constant 3.as a float?

  • use float(3.14f)
  • use 3.14f
  • use f(3.14)
  • use (f)(3.14)
Q.13

If the binary eauivalent of 5.in normalised form iswhat will be the output of the program (on intel machine)?

#include<stdio.h>
#include<math.h>
int main()
{
    float a=5.    char *p;
    int i;
    p = (char*)&a;
    for(i=i<=i++)
        printf("%02x\n", (unsigned char)p[i]);
    return}
  • 40 AC 00 00
  • 04 CA 00 00
  • 00 00 AC 40
  • 00 00 CA 04
Q.14

What will be the output of the program?

#include<stdio.h>
int main()
{
    float fval=7.    printf("%d\n", (int)fval);
    return}
  • 0
  • 0.0
  • 7.0
  • 7
Q.15

Which of the following statement obtains the remainder on dividing 5.5 by 1.3 ?

  • rem = (5.5 % 1.3)
  • rem = modf(5.5, 1.3)
  • rem = fmod(5.5, 1.3)
  • Error: we can't divide
Q.16

Which of the following range is a valid long double (Turbo C inbit DOS OS) ?

  • 3.4E-4932 to 1.1E+4932
  • 3.4E-4932 to 3.4E+4932
  • 1.1E-4932 to 1.1E+4932
  • 1.7E-4932 to 1.7E+4932
Q.17

What will be the output of the program?

#include<stdio.h>
#include<math.h>
int main()
{
    printf("%f\n", sqrt(36.0));
    return
}
  • 6.0
  • 6
  • 6.000000
  • Error: Prototype sqrt() not found.
Q.18

Which statement will you add in the following program to work it correctly?

#include<stdio.h>
int main()
{
    printf("%f\n", log(36.0));
    return}
  • #include<conio.h>
  • #include<math.h>
  • #include<stdlib.h>
  • #include<dos.h>
Q.19

What will be the output of the program?

#include<stdio.h>
#include<math.h>
int main()
{
    printf("%d, %d, %d\n", sizeof(3.14f), sizeof(3.14), sizeof(3.14l));
    return}
  • 4, 4, 4
  • 4, 8, 8
  • 4, 8, 10
  • 4, 8, 12
0 h : 0 m : 1 s