Which escape character can be used to beep from speaker in C?
\a
\b
\m
Correct Answer :
A. \a
Related Questions
Left shift operator rotates the bits on the left and places them to the right.
True
False
A recursive function calls itself again and again.
True
False
Which of the STL containers store the elements contiguously (in adjecent memory locations)?
std::vector
std::list
std::map
std::set
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
continue statement is used
to go to the next iteration in a loop
come out of a loop
exit and return to the main function
restarts iterations from beginning of loop
The output of the following code is:
main()
{
int k, num = 30;
k = (num > 5 ? (num <= 10 ? 100 : 200) : 500);
printf("
%d", num);
}
{
int k, num = 30;
k = (num > 5 ? (num <= 10 ? 100 : 200) : 500);
printf("
%d", num);
}
200
500
30
Unpredictable
The expression 'int j = 6 + 3 % -9;' evaluates to -1.
True
False
unsigned char has a range from 0 to ------------
253
254
255
256
The same variable names of automatic type can be used in different functions without any conflict.
True
False
/* The C language.
/* is a procedural language .*/*/
The above statement is valid.
True
False
printf("%d", sizeof('2')); will print 2.
True
False
Only one break can be used in one loop.
True
False
gets() and puts() are unformatted I/O functions.
True
False
Character data types cannot be declared as unsigned.
True
False
The contents of a file opened in 'r+' mode cannot be changed.
True
False
The expression (i + j)++ is illegal.
True
False
Which of the following is invalid?
''
" "
'a'
abc'
fprintf()function can be used to write into console.
True
False
Nested macros are allowed.
True
False
Variables declared as register storage type gets stored in CPU registers.
True
False
The output of the following code is:
main()
{
int a = 5, b = 6;
(a == b? printf("%d", a));
}
{
int a = 5, b = 6;
(a == b? printf("%d", a));
}
0
5
Error
None of the above
static variable will not always have assigned value.
True
False
C is a ___ language
High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
Machine Level and OOPS
A C variable cannot start with
An alphabet
A number
A special symbol other than underscore
both (b) and (c)
perror( ) function used to ?
Work same as printf()
prints the error message specified by the compiler
prints the garbage value assigned by the compiler
None of the above
Which of the following is the most preferred way of throwing and handling exceptions?
Throw by value and catch by reference.
Throw by reference and catch by reference.
Throw by value and catch by value
Throw the pointer value and provide catch for teh pointer type.
The value of an enumerated datatype can be read using scanf() function.
True
False
The expression "b = 3 ^ 2;" will evaluate b = 9.
True
False
# define PI = 8;' is the correct declaration of macros.
True
False
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");
}
{
char a = 'B';
switch (a)
{
case 'A' : printf("a");
case 'B' : printf("b");
default : printf("c");
}
B
b
bca
bc