Subscribe:Posts Comments | Read Articles on Various Topics - Pro Articles

You Are Here: Home » Sample Placement Papers, TCS Test Papers » TCS Test Paper C Language Objective Type questions

TCS Placement Technical Paper C Language Multiple Choice Questions / MCQs.
1. Which is the C language Terminator?
(a) semicolon
(b) colon
(c) period
(d) exclamation mark

2. Which of these is false — A compound statement is
(a) A set of simple statements
(b) Demarcated on either side by curly brackets
(c) Can be used in place of simple statement
(d) A C function is not a compound statement.

3. Which of these is true: C FUNCTIONS?
(a) Need not return any value
(b) Should always return an integer
(c) Should always return a float
(d) Should always return more than one value

4. Main must be written as
(a) The first function in the program
(b) Second function in the program
(c) Last function in the program
(d) Any where in the program

5. Which of these is true? Automatic Variables are:
(a) Its type must be declared before using the variable
(b) They are local
(c) They are not initialized to zero
(d) They are global

6. Write one statement equivalent to the following two statements
x=sqr(a);
return(x);
Choose from one of the alternatives
(a) return(sqr(a));
(b) printf(“sqr(a)”);
(c) return(a*a*a);
(d) printf(“%d”,sqr(a));

7. Which of the following about the C comments is false?
(a) Comments can go over multiple lines
(b) Comments can start any where in the line
(c) A line can contain comments with out any language statements
(d) Comments can occur within comments

8. Find out the value of Y in the following C Code.
x=7;
y=0;
if(x=6) y=7;
else y=1;
(a) 7
(b) 0
(c) 1
(d) 6

9. Read the function conv() given below
conv(int t){
int u;
u=5/9 * (t-32);
return(u);
}
What is returned
(a) 15
(b) 0
(c) 16.1
(d) 29

10. Which of the following represents true statement either x is in the range of 10 and 50 or y is zero
(a) x >= 10 && x <= 50 y = = 0
(b) x<50
(c) y!=10 && x>=50
(d) None of these

11. Which of the given statements is not an infinite loop?
(a) while(1)\{ ….}
(b) for(;;)
{

}
(c) x=0;
do{
/*x unaltered within the loop*/
…..}
while(x = = 0);
(d) # define TRUE 0

while(TRUE){
….}
12. What does the following function print?
func(int i)
{ if(i%2)return 0;
else return 1;}
main()
{
int =3;
i=func(i);
i=func(i);
printf(“%d”,i);
}
(a) 3
(b) 1
(c) 0
(d) 2

13. How will the following 2 statements be interpreted by the C Language Compiler?
p=p+x;
q=q+y;
(a) p=p+x;
q=q+y
(b)p=p+xq=q+y
(c)p=p+xq;
q=q+y
(d)p=p+x/q=q+y
For questions 14,15,16,17 use the following alternatives
a.int
b.char
c.string
d.float
14. ’9′
15. “1 e 02″
16. 10e05
17. 15
18. Read the folllowing code
# define MAX 100
# define MIN 100
….
….
if(x>MAX)
x=1;
else if(x<MIN)
x=-1;
x=50;
if the initial value of x is 200, find the value of x after executing this code?
(a) 200
(b) 1
(c) -1
(d) 50

19. A memory of 20 bytes is allocated to a string declared as char *s

s=”Entrance”
l=strlen(s);
what is the value of l after the execution of the above two statements?
(a)20
(b)8
(c)9
(d)21

20. Given the code
int a[50];
int *pa;
pa=a;
To access the 6th element of the array which of the following is incorrect?
(a) *(a+5)
(b) a[5]
(c) pa[5]
(d) *(*pa + 5}

21. Consider the following structure:
struct num nam{
int no;
char name[25];
}
struct num nam n1[]={{12,”Fred”},{15,”Martin”},{8,”Peter”},{11,Nicholas”}};
…..
…..
printf(“%d%d”,n1[2],no,(*(n1 + 2),no) + 1);
What does the above statement print?
(a) 8,9
(b) 9,9
(c) 8,8
(d) 8,unpredictable value

22. Which of these is not correct?
(a) a=b=3=4;
(b) a=b=c=d=0;
(c)float a=int b=3.5;
(d)int a; float b; a=b=3.5;

23. Regarding the scope of the variables; identify the incorrect statement:
(a) automatic variables are automatically initialized to 0
(b) static variables are automatically initialized to 0
(c)the address of a register variable is not accessible
(d)static variables cannot be initialized with any expression

24. cond 1?cond 2?cond 3?:exp 1:exp 2:exp 3:exp 4;
is equivalent to which of the following?
(a)if cond 1
exp 1;
else if cond 2
exp 2;
else if cond 3
exp 3;
else exp 4;
(b) if cond 1
if cond 2
if cond 3
exp 1;
else exp 2;
else exp 3;
else exp 4;
(c) if cond 1 && cond 2 && cond 3
exp 1 exp 2exp 3exp 4;
(d) if cond 3
exp 1;
else if cond 2 exp 2;
else if cond 3 exp 3;
else exp 4;
In the above statements, find the correct one for the conditions given.
25. The operator for exponents is
(a) **
(b) ^
(c) %
(d) not available

26. Which of the following is no correct?
(a) a+=b
(b) a*=b
(c) a»=b
(d) a**=b

27. Find out the value of y here if the value of x is given to be 10.
y=5;
if (x==10)
else if(x==9)
else y=8;
(a)9
(b)8
(c)6
(d)7

28. What can this code be used for?
fn(int n,int p,int r){
static int a=p;
switch(n){
case 4:a+=a*r;
case 3:a+=a*r;
case 2:a+=a*r;
case 1:a+=a*r;}}
(a)computes simple interest for one year
(b)computes amount on compound interest for 1 to 4 years
(c)computes simple interest for four year
(d)computes compound interst for 1 year

29. a=0;
while(a<5)
printf(“%d\\n”,a++);
How many times does the loop occurs?
(a)infinite
(b)5
(c)4
(d)6

TCS C Languge Objective type questions / multiple choice questions for Programming language exams / tests. C language skills test paper. Download free.

30. How many times does the loop get iterated?
for (i=0;i=10;i+=2)
printf(“Hi\\n”);
(a)10
(b) 2
(c) 5
(d) None of these

31. Which of these is false about the C language recursive function?
A recursive function (a) Calls itself
(b) is equivalent to a loop
(c) has a termination condition
(d) does not have a return value at all
32. Which of the following go out of the loop if expn 2 becoming false
(a) while(expn 1)\{…if(expn 2)continue;}
(b) while(!expn 1)\{if(expn 2)continue;…}
(c) do{..if(expn 1)continue;..}while(expn 2);
(d) while(!expn 2)\{if(expn 1)continue;..\}

33. Consider the following program
main()
{unsigned int i=10;
while(i>=0){
printf(“%u”,i)
i–;}
}
The loop will get executed —- times.
(a)10
(b)9
(c)11
(d)infinite

34.Pick out the odd one out
(a) malloc()
(b) calloc()
(c) free()
(d) realloc()

35.Find the value of b[-1] in the following program.
main(){
int a[5]={1,3,6,7,0};
int *b;
b=&a[2];
}
The value of b[-1] is
(a) 1
(b) 3
(c) -6
(d) none

36. # define prod(a,b)=a*b
main(){
int x=2;
int y=3;
printf(“%d”,prod(x+2,y-10)); }
the output of the program is
(a) 8
(b) 6
(c) 7
(d) None

37.Analyse the C language program and find the required value:
int n,sum=1;
switch(n){
case 2:sum=sum+2;
case 3:sum*=2;
break;
default:sum=0;}
If n=2, what is the value of sum
(a) 0
(b) 6
(c) 3
(d) None of these

38. Which of these is false?
1.if(c=1)
2.if(c!=3)
3.if(a<b)then
4.if(c==1)
(a) 1 only
(b) 1&3
(c) 3 only
(d) All of the above

39. The format specified for hexa decimal is
(a) %d
(b) %o
(c) %x
(d) %u

40. Find the output of the following program
main(){
int x=5, *p;
p=&x
printf(“%d”,++*p);
}
(a) 5
(b) 6
(c) 0
(d) none of these

41.Consider the following C language code and find the required values.
main(){
int i=3,x;
while(i>0){
x=func(i);
i–; }
int func(int n){
static sum=0;
sum=sum+n;
return(sum);}
The final value of x is
(a) 6
(b) 8
(c) 1
(d) 3

43. Int *a[5] refers to
(a) an array of pointers
(b) a pointer to an array
(c) pointer to a pointer
(d) none of these

44.Which of the following statements is incorrect
(a) typedef struct new{
int n1;
char n2;
} DATA;
(b) typedef struct {
int n3;
char *n4;}ICE;
(c) typedef union{ int n5;
float n6;} UDT;
(d) #typedef union {
int n7;
float n8;} TUDAT;

Tags:

Leave a Reply

© Copyright 2010 Latestexams. All Rights Reserved | Privacy Policy | Terms & Conditions