This set of C Multiple Choice Questions & Answers (MCQs) focuses on “Conditional Expressions – 1”.
Pre-requisite for this C MCQ set: Advanced C Programming Video Tutorial.
1. What will be the output of the following C code?
#include <stdio.h>int main()
{int x = 2, y = 0;
int z = (y++) ? y == 1 && x : 0;
printf("%d\n", z);
return 0;
}
a) 0
b) 1
c) Undefined behaviour
d) Compile time error
View Answer
Explanation: None.
2. What will be the output of the following C code?
#include <stdio.h>int main()
{int x = 1;
int y = x == 1 ? getchar(): 2;
printf("%d\n", y);
}
a) Compile time error
b) Whatever character getchar function returns
c) Ascii value of character getchar function returns
d) 2
View Answer
Explanation: None.
3. What will be the output of the following C code?
#include <stdio.h>int main()
{int x = 1;
short int i = 2;
float f = 3;
if (sizeof((x == 2) ? f : i) == sizeof(float))
printf("float\n");
else if (sizeof((x == 2) ? f : i) == sizeof(short int))
printf("short int\n");
}
a) float
b) short int
c) Undefined behaviour
d) Compile time error
View Answer
Explanation: None.
4. What will be the output of the following C code?
#include <stdio.h>int main()
{int a = 2;
int b = 0;
int y = (b == 0) ? a :(a > b) ? (b = 1): a;
printf("%d\n", y);
}
a) Compile time error
b) 1
c) 2
d) Undefined behaviour
View Answer
Explanation: None.
5. What will be the output of the following C code?
#include <stdio.h>int main()
{int y = 1, x = 0;
int l = (y++, x++) ? y : x;
printf("%d\n", l);
}
a) 1
b) 2
c) Compile time error
d) Undefined behaviour
View Answer
Explanation: None.
6. What will be the output of the following C code?
#include <stdio.h>void main()
{int k = 8;
int m = 7;
int z = k < m ? k++ : m++;
printf("%d", z);
}
a) 7
b) 8
c) Run time error
d) 15
View Answer
Explanation: None.
7. What will be the output of the following C code?
#include <stdio.h>void main()
{int k = 8;
int m = 7;
int z = k < m ? k = m : m++;
printf("%d", z);
}
a) Run time error
b) 7
c) 8
d) Depends on compiler
View Answer
Explanation: None.
8. What will be the output of the following C code?
#include <stdio.h>void main()
{1 < 2 ? return 1 : return 2;
}
a) returns 1
b) returns 2
c) Varies
d) Compile time error
View Answer
Explanation: None.
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