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1000+ C Programming Multiple Choice Question Answer [Solved]

Thursday 9th of March 2023

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1. How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
A. 3
B. 4
C. 5
D. infinite
Answer : B
2. Character data types cannot be declared as unsigned.
A. True
B. False
C.
D.
Answer : B
3. If 'str' is a string of 7 characters, the statement printf("%4s", str); will display ------characters.
A. 4
B. 7
C. 6
D. 0
Answer : A
4. ------ is the ternary operator
A. ?,-
B. ?,:
C. ++<--
D. none of the above
Answer : B
5. The main() function can call itself recursively.
A. True
B. False
C.
D.
Answer : A
6. The output of the following code is: 
void main() 
{
float a;
int x = 10, y = 3; a = x / y;
printf("%f", a); }
A. 3.999999
B. Error
C. 3
D. 3.000000
Answer : D
7. void' is a datatype.
A. True
B. False
C.
D.
Answer : A
8. Structures within structures cannot be created.
A. True
B. False
C.
D.
Answer : B
9.

What will be output if you will compile and execute the following c code?


#include 
#define x 5+2 
int main(){     
int i;     
i=x*x*x;     
printf("%d",i);      
return 0;  
}



A. 27
B. 343
C. 233
D. Compiler Error
Answer : A
10. Which of the following is the most preferred way of throwing and handling exceptions?
A. Throw by value and catch by reference.
B. Throw by reference and catch by reference.
C. Throw by value and catch by value
D. Throw the pointer value and provide catch for teh pointer type.
Answer : B
11. What is an array?
A. An array is a collection of variables that are of the dissimilar data type.
B. An array is a collection of variables that are of the same data type.
C. An array is not a collection of variables that are of the same data type.
D. None of the above.
Answer : B
12. The output of the following code is: 
main() 
{ 
unsigned int a = 10; 
while (a>=10) 
{ 
int a; a-- ; 
} 
printf("%i", a); 
}
A. Infinite loop
B. 9
C. 0
D. None
Answer : A
13. For 16?bit compiler allowable range for integer constants is ______ ?
A. ?3.4e38 to 3.4e38
B. ?32767 to 32768
C. ?32768 to 32767
D. ?32668 to 32667
Answer : C
14. There are total ------ numbers of operators in 'C'.
A. 35
B. 45
C. 55
D. 40
Answer : B
15. Which one of the following is not a valid reserved keyword in C++
A. Explicit
B. Public
C. Implicit
D. Private
Answer : C
16. Which of the following is a valid destructor of the class name "Country"
A. int ~Country()
B. void Country()
C. int ~Country(Country obj)
D. void ~Country()
Answer : B
17. Only one break can be used in one loop.
A. True
B. False
C.
D.
Answer : B
18. The output of the following code is: 
main() 
{
int a = 0; 
for (; i = 0; i++) 
printf("%d", a); 
}
A. 0
B. Nothing will be displayed
C. Infinite loop
D. None of the above
Answer : D
19. Which of the following is not a standard exception built in C++.
A. std::bad_creat
B. std::bad_alloc
C. std::bad_cast
D. std::bad_typeid
Answer : A
20. The value of an enumerated datatype can be read using scanf() function.
A. True
B. False
C.
D.
Answer : B
21. The output of the following code is: 
main() 
{
int a = 5, b = 6; 
(a == b? printf("%d", a)); 
}
A. 0
B. 5
C. Error
D. None of the above
Answer : C
22. continue statement is used
A. to go to the next iteration in a loop
B. come out of a loop
C. exit and return to the main function
D. restarts iterations from beginning of loop
Answer : D
23. What's wrong? for (int k = 2, k <=12, k++)
A. the increment should always be ++k
B. the variable must always be the letter i when using a for loop
C. there should be a semicolon at the end of the statement
D. the commas should be semicolons
Answer : B
24. Which classes allow primitive types to be accessed as objects?
A. Storage
B. Virtual
C. Friend
D. Wrapper
Answer : B
25. If the class name is X, what is the type of its “this” pointer (in a nonstatic, non-const member function)?
A. const X* const
B. X* const
C. X*
D. X&
Answer : D
26. The same variable names of automatic type can be used in different functions without any conflict.
A. True
B. False
C.
D.
Answer : A
27. Each pass through a loop is called a/an
A. enumeration
B. iteration
C. culmination
D. pass through
Answer : C
28. /* The C language.
/* is a procedural language .*/*/
The above statement is valid.
A. True
B. False
C.
D.
Answer : B
29. The default initial value of automatic storage class is 0.
A. True
B. False
C.
D.
Answer : B
30. Variables declared as register storage type gets stored in CPU registers.
A. True
B. False
C.
D.
Answer : A
31. The output of the following code is: 
#define sqr(x= x*x) 
main() 
{
int a = 10, b = 5; 
printf("%d, %d", sqr(a+b),sqr(++a));
}
A. 77, 121
B. 225, 121
C. 77< 144
D. Compilation error
Answer : D
32. The -------------------------- loop executes at least once.
A. for
B. while
C. do-while
D. while & do-while
Answer : C
33. A C variable cannot start with
A. An alphabet
B. A number
C. A special symbol other than underscore
D. both (b) and (c)
Answer : D
34. Union is used to hold different data at different time.
A. True
B. False
C.
D.
Answer : A
35. A pointer is an indication of the variable to be accessed next.
A. True
B. False
C.
D.
Answer : B
36. C is a ___ language
A. High Level and Procedural
B. Low Level and OOPS
C. Middle Level and Procedural
D. Machine Level and OOPS
Answer : A
37. What is the right way to access value of structure variable book{ price, page }?
A. printf("%d%d", book.price, book.page);
B. printf("%d%d", price.book, page.book);
C. printf("%d%d"< price::book< page::book);
D. printf("%d%d", price?>book, page?>book);
Answer : A
38. In the expression - 'x + y + 3z =20'
A. x + y' is a keyword
B. 3 and 20 are constants
C. 3z is a constant
D. y is a variable and z is a constant
Answer : B
39. The output of the following code is: 
main() 
{ 
void msg() 
{ 
printf("HELLO WORLD"); 
} 
}
A. HELLO WORLD
B. Error
C. None of the above
D. Null
Answer : B
40. The expression "b = 3 ^ 2;" will evaluate b = 9.
A. True
B. False
C.
D.
Answer : B
41. What is C Tokens?
A. The smallest individual units of c program
B. The basic element recognized by the compiler
C. The largest individual units of program
D. A & B Both
Answer : D
42. The output of the following code is: 
main() 
{ 
int sub[50]; 
for(i=0; i<=48;i++) 
{ 
sub[i]=i; 
printf("
%d", sub[i]);
}
}
A. 0 to 48 will be displayed
B. 48
C. 49
D. Compilation Error
Answer : D
43. Which of the following language is predecessor to C Programming Language?
A. A
B. B
C. BCPL
D. C++
Answer : B
44. && and & operators have the same meaning.
A. True
B. False
C.
D.
Answer : B
45. Which of the following is an example of compounded assignment statement?
A. a = 5
B. a += 5
C. a = b = c
D. a = b
Answer : C
46. Left shift operator rotates the bits on the left and places them to the right.
A. True
B. False
C.
D.
Answer : B
47. Which of the following is not a preprocessor directive
A. #if
B. #elseif
C. #undef
D. #pragma
Answer : B
48.

What will be output if you will compile and execute the following c code?


#include 
int main(){     
char c=125;     
c=c+10;     
printf("%d",c);     
return 0;   
}

 
A. 135
B. +INF
C. -121
D. -135
Answer : C
49. The output of the following code is:
void change (char *k) 
{
k="Hello";
return; 
} 
main() 
{ 
char *ch = "World";;
change(ch); 
printf("%s", ch); 
}
A. Hello
B. World
C. Compilation error
D. Hello World
Answer : B
50. Every if statement can be converted into an equivalent switch statement.
A. True
B. False
C.
D.
Answer : B
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