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1. Who is the father of C language?
a)Steve Jobs
b) James Gosling
c) Dennis Ritchie
d) Rasmus Lerdorf
2. Which of the following is not a valid C variable name?
a) int number;
b) float rate;
c) int variable_count;
d) int $main;
3. All keywords in C are in ____________
a) LowerCase letters
b) UpperCase letters
c) CamelCase letters
d) None of the mentioned
4. Which of the following is true for variable names in C?
a) They can contain alphanumeric characters as well as special characters
b) It is not an error to declare a variable to be one of the keywords(like goto, static)
c) Variable names cannot start with a digit
d) Variable can be of any length
5. Which is valid C expression?
a) int my_num = 100,000;
b) int my_num = 100000;
c) int my num = 1000;
d) int $my_num = 10000;
6. Which of the following cannot be a variable name in C?
a) volatile
b) true
c) friend
d) export
7. What is short int in C programming?
a) The basic data type of C
b) Qualifier
c) Short is the qualifier and int is the basic data type
d) All of the mentioned
8. Which of the following declaration is not supported by C language?
a) String str;
b) char *str;
c) float str = 3e2;
d) Both String str; & float str = 3e2;
9. Which keyword is used to prevent any changes in the variable within a C program?
a) immutable
b) mutable
c) const
d) volatile
10. What is the result of logical or relational expression in C?
a) True or False
b) 0 or 1
c) 0 if an expression is false and any positive number if an expression is true
d) None of the mentioned
11. Which of the following typecasting is accepted by C language?
a) Widening conversions
b) Narrowing conversions
c) Widening & Narrowing conversions
d) None of the mentioned
12. Where in C the order of precedence of operators do not exist?
a) Within conditional statements, if, else
b) Within while, do-while
c) Within a macro definition
d) None of the mentioned
13. Which of the following is NOT possible with any 2 operators in C?
a) Different precedence, same associativity
b) Different precedence, different associativity
c) Same precedence, different associativity
d) All of the mentioned
14. What is an example of iteration in C?
a) for
b) while
c) do-while
d) all of the mentioned
15. Functions can return enumeration constants in C?
a) true
b) false
c) depends on the compiler
d) depends on the standard
16. Functions in C Language are always _________
a) Internal
b) External
c) Both Internal and External
d) External and Internal are not valid terms for functions
17. Which of the following is not accepted in C?
a) static a = 10; //static as
b) static int func (int); //parameter as static
c) static static int a; //a static variable prefixed with static
d) all of the mentioned
18. Property which allows to produce different executable for different platforms in C is called?
a) File inclusion
b) Selective inclusion
c) Conditional compilation
d) Recursive macros
19. What is #include <stdio.h>?
a) Preprocessor directive
b) Inclusion directive
c) File inclusion directive
d) None of the mentioned
20. C preprocessors can have compiler specific features.
a) True
b) False
c) Depends on the standard
d) Depends on the platform
21. Which of the following are C preprocessors?
a) #ifdef
b) #define
c) #endif
d) all of the mentioned
22. The C-preprocessors are specified with _________ symbol.
a) #
b) $
c) ” ”
d) &
23. How is search done in #include and #include “somelibrary.h” according to C standard?
a) When former is used, current directory is searched and when latter is used, standard directory is searched
b) When former is used, standard directory is searched and when latter is used, current directory is searched
c) When former is used, search is done in implementation defined manner and when latter is used, current directory is searched
d) For both, search for ‘somelibrary’ is done in implementation-defined places
24. How many number of pointer (*) does C have against a pointer variable declaration?
a) 7
b) 127
c) 255
d) No limits
25. Which of the following is not possible statically in C language?
a) Jagged Array
b) Rectangular Array
c) Cuboidal Array
d) Multidimensional Array
26. Which of the following return-type cannot be used for a function in C?
a) char *
b) struct
c) void
d) none of the mentioned
27. The standard header _______ is used for variable list arguments (…) in C.
a) <stdio.h >
b) <stdlib.h>
c) <math.h>
d) <stdarg.h>
28. When a C program is started, O.S environment is responsible for opening file and providing pointer for that file?
a) Standard input
b) Standard output
c) Standard error
d) All of the mentioned
29. In C language, FILE is of which data type?
a) int
b) char *
c) struct
d) None of the mentioned
30. What is the sizeof(char) in a 32-bit C compiler?
a) 1 bit
b) 2 bits
c) 1 Byte
d) 2 Bytes
31. Which of the following is not an operator in C?
a) ,
b) sizeof()
c) ~
d) None of the mentioned
32. scanf() is a predefined function in______header file.
a) stdlib. h
b) ctype. h
c) stdio. h
d) stdarg. h
33. What is meant by ‘a’ in the following C operation? fp = fopen("Random.txt", "a");
a) Attach
b) Append
c) Apprehend
d) Add
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