Character Types C++ MCQ

1. How many characters are specified in the ASCII scheme?
a) 64
b) 128
c) 256
d) none of the mentioned

Answer:b

2. Select the right option.
Given the variables p, q are of char type and r, s, t are of int type
1. t = (r * s) / (r + s);
2. t = (p * q) / (r + s);
a) 1 is true but 2 is false
b) 1 is false and 2 is true
c) both 1 and 2 are true
d) both 1 and 2 are false

Answer:c

3. Which of the following belongs to the set of character types?
a) char
b) wchar_t
c) only a
d) both a and b

Answer:d

4. What will be the output of this program?

1.     #include <iostream>

2.     using namespace std;

3.     int main()

4.     {

5.         char c = 74;

6.         cout << c;

7.         return 0;

8.     }

a) A
b) N
c) J
d) I

Answer:c

5. How do we represent a wide character of the form wchar_t?
a) L’a’
b) l’a’
c) L[a]
d) la

Answer:a

6. What is the output of this program?

1.     #include <stdio.h>

2.     int main()

3.     {

4.         char a = '\012';

6.         printf("%d", a);

7.         return 0;

8.     }

a) Compiler error
b) 12
c) 10
d) Empty

Answer:c

7. In C++, what is the sign of character data type by default?
a) Signed
b) Unsigned
c) Implementation dependent
d) None of these

Answer:c

8. Is the size of character literals different in C and C++?
a) Implementation defined
b) Can’t say
c) Yes, they are different
d) No, they are not different

Answer:c

9. Suppose in a hypothetical machine, the size of char is 32 bits. What would sizeof(char) return?
a) 4
b) 1
c) Implementation dependent
d) Machine dependent

Answer:b

10. What constant defined in <climits> header returns the number of bits in a char?
a) CHAR_SIZE
b) SIZE_CHAR
c) BIT_CHAR
d) CHAR_BIT

Answer:d