250+ TOP MCQs on Conditional Expressions and Answers [2024]

C helps anyone preparing for IBM and other companies C interviews. One should practice these Objective Questions and answers continuously for 2-3 months to clear IBM interviews on C Programming language.

Here is a listing of C Objective Questions on “Conditional Expressions” along with answers, explanations and/or solutions:

1. What will be the output of the following C code?

```
    #include 
```
```
    void main()
```
```
    {
```
```
        int k = 8;
```
```
        int m = 7;
```
```
        k < m ? k++ : m = k;
```
```
        printf("%d", k);
```
```
    }
```

a) 7
b) 8
c) Compile time error
d) Run time error
Answer: c
Clarification: None.

2. What will be the output of the following C code?

```
    #include 
```
```
    void main()
```
```
    {
```
```
        int k = 8;
```
```
        int m = 7;
```
```
        k < m ? k = k + 1 : m = m + 1;
```
```
        printf("%d", k);
```
```
    }
```

a) Compile time error
b) 9
c) 8
d) Run time error
Answer: a
Clarification: None.

3. What will be the final values of a and c in the following C statement? (Initial values: a = 2, c = 1)

a) a = 0, c = 0;
b) a = 2, c = 2;
c) a = 2, c = 2;
d) a = 1, c = 2;
Answer: a
Clarification: None.

4. What will be the data type of the following expression? (Initial data type: a = int, var1 = double, var2 = float)

expression (a < 50)? var1 : var2;

a) int
b) float
c) double
d) Cannot be determined
Answer: c
Clarification: None.

5. Which expression has to be present in the following?

exp1 ? exp2 : exp3;

a) exp1
b) exp2
c) exp3
d) all of the mentioned
Answer: d
Clarification: None.

6. What will be the final value of c in the following C code snippet? (Initial values: a = 1, b = 2, c = 1)

a) Syntax Error
b) c = 1
c) c = 2
d) c = 3
Answer: c
Clarification: None.

7. The following C code can be rewritten as _______

    if (!n)c = b;
    else c = a;

    if (n <;= 0)c = b;
    else c = a;

    if (n > 0)c = a;
    else c = b;

d) All of the mentioned
Answer: a
Clarification: None.

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