1. How to declare a wide character in the string literal?

1. 1. l prefix

   
   
   

   2. W prefix

   
   
   

   3. L prefix

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   It can turn this as the wide character instead of narrow characters.

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2. The difference between P and ‘P’ is

1. 1. The first one is a character constant P and the second one is the string literal P

   
   
   

   2. The first one refers to a variable whose identifier is P and the second one refers to the character constant P

   
   
   

   3. Both are same

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   The first one refers to a variable whose identifier is P and the second one refers to the character constant P

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3. Regarding the following statement which of the statements is true?
   

   const int num = 20;
   

1. 1. Constructs an integer type variable with an as identifier and 20 as the value

   
   
   

   2. Declares a variable num with 20 as its initial value

   
   
   

   3. Declares a construction num with 20 as its initial value

   
   
   

   4. Declares a constant num whose value will be 20

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Because the const is used to declare non-changeable values only.

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4. Which of the following statement is not true about preprocessor directives?

1. 1. These must be written on their own line

   
   
   

   2. These are lines read and processed by the preprocessor

   
   
   

   3. They end with a semicolon

   
   
   

   4. They do not produce any code by themselves

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   They end with a semicolon

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5. What is the output of this program?
   

   #include 
       using namespace std;
       #define PI 3.14159
       int main ()
       {
           float radious = 10;
           float Circle;
           Circle = 2 * PI * radious;
           cout << Circle;
           return 0;
       }
   

1. 1. 10

   
   
   

   2. 2

   
   
   

   3. Compilation Error

   
   
   

   4. Runtime Error

   
   
   

   5. 62.8318

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   In this program, we are finding the area of the circle by using concern formula.

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