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SSC CHSL - C Programming 1000+ MCQ [Solved] PDF Download

Thursday 9th of March 2023

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Downlaod C Programming MCQ PDF
1. Left shift operator rotates the bits on the left and places them to the right.
A. True
B. False
C.
D.
Answer : B
2.

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
3. What will be output if you will compile and execute the following c code? 
#include 
int main(){    
int i=320;    
char *ptr=(char *)&i;    
printf("%d",*ptr);     
return 0; 
}

A. 1
B. 64
C. 320
D. Compiler Error
Answer : B
4. C programs are converted into machine language with the help of
A. An Editor
B. A compiler
C. An operating system
D. None of the above
Answer : B
5. The output of the following code is:
void main() 
{
char a = 'B';
switch (a) 
{
case 'A' : printf("a"); 
case 'B' : printf("b");
default : printf("c");
}
A. B
B. b
C. bca
D. bc
Answer : D
6. 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
7. A multidimensional array A[10][9] can store-------- number of elements
A. 91
B. 88
C. 90
D. 89
Answer : C
8. A declaration float a, b; occupies ___ of memory
A. 1 byte
B. 4 bytes
C. 8 bytes
D. 16 bytes
Answer : C
9. What does STL stand for?
A. Simple Template Library
B. Standard Template Library
C. Static Type Library
D. Single Type-based Library
Answer : A
10. The array 'char name[10] can consist of a maximum of 9 characters.
A. True
B. False
C.
D.
Answer : A
11. Which of the following shows the correct hierarchy of arithmetic operations in C
A. / + * ?
B. * ? / +
C. + ? / *
D. * / + -
Answer : D
12. p++ executes faster than p + 1.
A. True
B. False
C.
D.
Answer : A
13. Which of the following is not true about preprocessor directives
A. They begin with a hash symbol
B. They are processed by a preprocessor
C. They form an integral part of the code
D. They have to end with a semi colon
Answer : A
14. strcat() function ----------------------- two strings.
A. delete
B. concatenate
C. compare
D. none of the above
Answer : B
15. The output of the following code is: 
void main() 
{
int a = 1, b=2; 
int *ip; 
ip=&a; 
b=*ip; 
printf("%d", b);
}
A. 2
B. 1
C. 100
D. 0
Answer : B
16. 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
17. No commas or blanks are allowed within an integer or a real constant.
A. True
B. False
C.
D.
Answer : A
18. An array declared as A[100][100] can hold a maximum of 100 elements.
A. True
B. False
C.
D.
Answer : B
19. What is right way to Initialization array?
A. int num[6] = { 2, 4, 12, 5, 45, 5 } ;
B. int n{} = { 2, 4, 12, 5, 45, 5 } ;
C. int n{6} = { 2< 4< 12 } ;
D. int n(6) = { 2, 4, 12, 5, 45, 5 } ;
Answer : A
20. There are total ------ numbers of operators in 'C'.
A. 35
B. 45
C. 55
D. 40
Answer : B
21. The statement "for (i = 0, j = 2; j <= 10; j++)" is a valid statement in 'C'.
A. True
B. False
C.
D.
Answer : A
22. 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
23. # define PI = 8;' is the correct declaration of macros.
A. True
B. False
C.
D.
Answer : B
24. char *s[10] defines an array of ------------------------
A. pointers to strings
B. string to pointer
C. both
D.
Answer : A
25. 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
26. 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
27. The same variable names of automatic type can be used in different functions without any conflict.
A. True
B. False
C.
D.
Answer : A
28. 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
29. Which one of the following is not a fundamental data type in C++
A. float
B. string
C. int
D. wchar_t
Answer : A
30. A pointer is an indication of the variable to be accessed next.
A. True
B. False
C.
D.
Answer : B
31. perror( ) function used to ?
A. Work same as printf()
B. prints the error message specified by the compiler
C. prints the garbage value assigned by the compiler
D. None of the above
Answer : B
32. A continue statement causes execution to skip to
A. the return 0; statement
B. the first statement after the loop
C. the statement following the continue statement
D. the next iteration of the loop
Answer : C
33. The contents of a file opened in 'r+' mode cannot be changed.
A. True
B. False
C.
D.
Answer : B
34. printf("%d", sizeof('2')); will print 2.
A. True
B. False
C.
D.
Answer : B
35. 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
36. Each pass through a loop is called a/an
A. enumeration
B. iteration
C. culmination
D. pass through
Answer : C
37. Which of the following correctly describes C++ language?
A. Statically typed language
B. Dynamically typed language
C. Both Statically and dynamically typed language
D. Type-less language
Answer : D
38. /* The C language.
/* is a procedural language .*/*/
The above statement is valid.
A. True
B. False
C.
D.
Answer : B
39. What's wrong? (x = 4 && y = 5) ? (a = 5) ; (b = 6);
A. the question mark should be an equal sign
B. the first semicolon should be a colon
C. there are too many variables in the statement
D. the conditional operator is only used with apstrings
Answer : D
40. What's wrong? while( (i < 10) && (i > 24))
A. the logical operator && cannot be used in a test condition
B. the while loop is an exit-condition loop
C. the test condition is always true
D. the test condition is always false
Answer : D
41. Which options shows the correct hierarchy of arithmetic operators
A. **, * or /, + or -
B. **, *, /, +, -
C. **< /< *< +<-
D. / or *, - or +
Answer : D
42. The output of the following code is: 
void main() 
{ 
static int a = 1, b, c;
if (a>=2) b=2; c=3;
printf("%d\t%d", b,c); 
}
A. 2 3
B. 0 3
C. 0 0
D. 2 0
Answer : B
43. The output of the following code is: 
main() 
{ 
xyz: goto abc;
printf("Hello"); 
abc: printf("World");
goto xyz;
}
A. Infinite loop
B. Hello World
C. World Hello
D. Compilation error
Answer : A
44. struct stud
{
int roll;
char name[20];
float marks;
} *p;
What will be the byte size of p?
A. 24
B. 2
C. 26
D. None
Answer : B
45. The printf() function retunes which value when an error occurs?
A. Positive value
B. Zero
C. Negative value
D. None of these
Answer : C
46. When is std::bad_alloc exception thrown?
A. When new operator cannot allocate memory
B. When alloc function fails
C. When type requested for new operation is considered bad<  thisexception is thrown
D. When delete operator cannot delete teh allocated (corrupted) object
Answer : D
47. Which of the following keyword supports dynamic method resolution?
A. abstract
B. Virtual
C. Dynamic
D. Typeid
Answer : A
48. fprintf()function can be used to write into console.
A. True
B. False
C.
D.
Answer : B
49. 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
50. printf() is not a library function.
A. True
B. False
C.
D.
Answer : B
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