struct stud
{
int roll;
char name[20];
float marks;
} *p;
What will be the byte size of p?
24
2
26
None
Correct Answer :
B. 2
Related Questions
&& and & operators have the same meaning.
True
False
A pointer is an indication of the variable to be accessed next.
True
False
If the class name is X, what is the type of its “this” pointer (in a nonstatic, non-const member function)?
const X* const
X* const
X*
X&
The expression (i + j)++ is illegal.
True
False
The output of the following code is:
void main()
{
int z, a = 5, b = 3; z = a * 2 + 26 % 3;
printf("%d", z); }
{
int z, a = 5, b = 3; z = a * 2 + 26 % 3;
printf("%d", z); }
10
0
12
None of the above
The array 'char name[10] can consist of a maximum of 9 characters.
True
False
Which options shows the correct hierarchy of arithmetic operators
**, * or /, + or -
**, *, /, +, -
**< /< *< +<-
/ or *, - or +
In the expression - 'x + y + 3z =20'
x + y' is a keyword
3 and 20 are constants
3z is a constant
y is a variable and z is a constant
The -------------------------- loop executes at least once.
for
while
do-while
while & do-while
A declaration float a, b; occupies ___ of memory
1 byte
4 bytes
8 bytes
16 bytes
The expression 'int j = 6 + 3 % -9;' evaluates to -1.
True
False
Which header file is essential for using strcmp() function?
string.h
strings.h
text.h
strcmp.h
/* The C language.
/* is a procedural language .*/*/
The above statement is valid.
True
False
the value *(&i) is same as printing the value of address of i.
True
False
enum helps to create user defined datatype.
True
False
If 'str' is a string of 7 characters, the statement printf("%4s", str); will display ------characters.
4
7
6
0
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));
}
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
77, 121
225, 121
77< 144
Compilation error
A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
The output of the following code is:
void main()
{
float a;
int x = 10, y = 3; a = x / y;
printf("%f", a); }
{
float a;
int x = 10, y = 3; a = x / y;
printf("%f", a); }
3.999999
Error
3
3.000000
The main() function can be called from any other function.
True
False
The output of the following code is:
void main()
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
{
int a = 20;
printf("%d\t%d
", ++a, a);
}
21 21
20 21
21 20
20 20
Which escape character can be used to beep from speaker in C?
\a
\b
\m
Bitwise operators can operate upon?
double and chars
floats and doubles
ints and floats
ints and chars
What is Keywords?
Keywords have some predefine meanings and these meanings can be changed.
Keywords have some unknown meanings and these meanings cannot be changed.
Keywords have some predefine meanings and these meanings cannot be changed.
None of the above
The output of the following code is:
main()
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
Infinite loop
9
0
None
gets() and puts() are unformatted I/O functions.
True
False
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;
}
int main(){
int i=320;
char *ptr=(char *)&i;
printf("%d",*ptr);
return 0;
}
1
64
320
Compiler Error
How many times the following loop will execute?
for (a = 0; a < 4; a++)
printf("hello
");
3
4
5
infinite
fprintf()function can be used to write into console.
True
False
Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
3 +a = b;