C Language MCQ Exam Trivia! Quiz
.
- 1.Which of the following is not a valid variable name declaration?
- A.
Int a3;
- B.
Int 3_a;
- C.
Int _3a
- D.
Int a_3;
- 2.All keywords in C are in?
- A.
Camel Case letters
- B.
Upper Case letters
- C.
Lower Case letters
- D.
None
- 3.What is the output of this C code? int main() { int i = -5; int k = i %4; printf("%d\n", k); }
- A.
Compile time error
- B.
-1
- C.
1
- D.
None
- 4.What is the value of x in this C code? void main() { int x = 4 *5 / 2 + 9; }
- A.
6.75
- B.
1.85
- C.
19
- D.
3
- 5.What is the output of this C code? int main() { int *ptr, a = 10; ptr = &a; *ptr += 1; printf("%d,%d/n", *ptr, a); }
- A.
10,10
- B.
11,10
- C.
10,11
- D.
11,11
- 6.What is the size of an int data type?
- A.
8 Bytes
- B.
4 Bytes
- C.
Depends on the system/compiler
- D.
Cannot be determined.
- 7.What is short int in C programming?
- A.
Basic data type of C
- B.
Qualifier
- C.
Short is the qualifier and int is the basic datatype
- D.
All of the mentioned.
- 8.Which of the datatypes have a size that is variable?
- A.
Double
- B.
Int
- C.
Struct
- D.
Float
- 9.What is the output of this C code? 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
- 10.#include is called
- A.
Preprocessor directive
- B.
File inclusion directive
- C.
Inclusion directive
- D.
None of the mentioned
- 11.C preprocessors can have compiler-specific features.
- A.
True
- B.
False
- C.
Depends on the standard
- D.
Depends on the platform
- 12.Which of the following are C preprocessors?
- A.
#ifdef
- B.
#define
- C.
#endif
- D.
All of the mentioned.
- 13.#include statement must be written:
- A.
Before main()
- B.
After main()
- C.
Before any scanf/printf
- D.
It can be written anywhere
- 14.The C-preprocessors are specified with _________symbol.
- A.
#
- B.
$
- C.
" "
- D.
None of the mentioned
- 15.Does this compile without error? int main() { for (int k = 0; k < 10; k++); return 0; }
- A.
Yes
- B.
No
- C.
Depends on the C standard implemented by compilers
- D.
None of the mentioned
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