Challenge Accepted: c programming MCQ quiz top 50

What is the correct way to declare a constant in C?

How do you declare an array of 5 integers?

Every C program must atleast contain______ function(s).

Which of the following operator takes only integer operands?

………. Function is used to display output on screen

In C, what does the #define preprocessor directive do?

Syntax errors will be detected by the compoler.

Which of the following is a logical Not operator?

How can you use the comma operator to swap the values of two variables efficiently?

Which statement is used to execute a block of code at least once?

............is not supported by Procedural Programming.

Elements in an array are accessed ____________

Which is a storage class?

What is the primary purpose of header files in C, related to functions?

What will be the output of the following program
main( )
{
int k, num=30;
k=(num>5 ? (num<= 10 ? 100:200):500);
printf(“\n%d”, num);
}

Which of the following is a scalar data type?

Unsigned integer occupies

What is the primary purpose of using functions in C programs?

How many times the following program would print (“abc”)?
main()
{
printf(“\nabc”);
main();

What is the value of x after x = (a > b) ? a : b when a = 5 and b = 3?

What is the output of the expression: 10 / 0?

The == operator is used for assignment, while the = operator is used for comparison.

What will be output if you will compile and execute the following c code?
#include "string.h"
void main(){
clrscr();
printf("%d %d",sizeof("string"),strlen("string"));
getch();
}

How do you access the elements of an array using a loop?

Which special symbol is allowed for variable declaration ____________?

Which operator is used to obtain the address of a variable in C?

Which operator is used to perform pointer arithmetic in C?

An Ampersand in scanf() before the name of a variable denotes ___________.

What is the purpose of the static keyword in C?

Which of the following instructions have only one operand?

What is the difference between &x and *x?

Which operator is used to assign a value to a variable?

What is the main difference between call by value and call by reference in C?

What will be the maximum size of a float variable in c?

Which of the following statements is FALSE?

Which logical operator in C returns true if one operands are true?

What would be the final value of ‘x’ after the execution of the following program?
#include<stdio.h>
#include<conio.h>
Void main()
{
int x = 1;
clrscr();
do while(x <=10)
{
X++;
}
While (x <=5);
Print(“\n x =%d”,x);
}

Which is/are the disadvantage(s) of C language?

Which of the following functions is used to read a character from the standard input in C?

Find out on which line no . you will get an error ?
Line 1: void main ( )
Line 2: {
Line 3: print(“\n Hello World”)
Line 4: }

.What will be output if you will compile and execute the following c code?
int extern x;
void main()
printf("%d",x);
x=2;
getch();
}
int x=23;

A pointer is

The break statement causes an exit

What is constant?

What will be the output of the following program?
main()
{
int i = 5;
printf(“%d”, i=++i==6);
}

printf (“%d”, printf (“tim”));

Only one function may be named main().

A variable which is visible only in the function in which it is defined, is called

How to add standard input or output header file in C program

what will be output of following expression x=15-2*(6+18)/3+6

a -=b is equivalent to ________________.

Which of the following is not a feature of C language? [ ]

A Link is............

The underscrore can be used anywhere in an identifer.

What is the result of x & 7 when x = 13 (binary: 1101)?

Explain the difference between prefix and postfix increment/decrement operators (++x vs x++).

Consider the following program
main ( )
{ float a = 0.5, b = 0.7;
if (b < 0.8)
if (a < 0.5) printf (“ABCD”);
else printf (“PQR”);
else printf (“JKLF);
}
The output is

5 Find the output of the following program?
#include<stdio.h>
#include<conio.h>
void main()
{
int i=4,z=12;
clrscr();
if(i=5 || z>50)
printf("\n Samosa");
else
printf("\n Dosa");
getch();
}

What is the logical operator equivalent of ~x?

What is the correct way to declare a function pointer in C?

What is the output of the following program segment?
main()
{
int i = 1;
do
{ printf(“%d..”, i);
} while(i--);
}

Which of the following is not a valid C variable name?

Every line in a C program should end with a semicolon.

What will be the output of the following C code?
#include <stdio.h>
int main(){
int x = 10, *ptr;
ptr = &x;
*ptr = 20;
printf("%d", x);
}

What does the expression *ptr mean if ptr is a pointer variable?

What is the significance of the void keyword in a function declaration?

Which operator is used to get address of the variable?

What is the syntax for calling a function in C?

Which of the following operator has the highest precedence?

A switch statement is used to______

Which is the correct way to declare a pointer?

{ } are used to group statements together as in a function, or in the body of a loop. Such a
grouping is known as _________________.

Choose the correct answer

_____ and _____ are used to test more than one condition

The operator && is used for ________.

What is the index of the last element in an array of size 10?

What is the default mechanism for passing arguments in C?

 What is the correct way to swap the values of two variables x and y using the comma operator?

main() {
long i = 30000;
printf(“%d”, i); }

the output is

What is the output of the following program ?
void main() {
int x=40;y=30;z=80;
if(x<y<z)
printf(“\n Hello world”);
else
printf(“\nGood by”);

}

What does the sizeof operator return in C?

Which loop iterates a fixed number of times?

What is the return type of a function that doesn't return any value?

What is the correct way to pass an array to a function in C?

Which is the valid range of “int” data type?

What is the purpose of the strncat function in C?

#include<stdio.h>
#include<conio.h>
void main()
{
int i=4,z=12;
clrscr();
if(i=5 && z>50)
printf("\n Let us C");
else
printf("\n Let us Not C");
getch();
}

What is recursion in C, and what is its potential drawback?

Functions used in programs that are defined by programmers are called

Which operator is used to increment a variable by 1?

Which of the following data type will throw an error on modulus operation(%)?

What is the result of a * b + c / d without parentheses?

Output of the program given below is
int i;
main()
{
printf(“%d”, i);
}

what will be the output of the following program?
main()
{
int a=300,b,c;
if (a>=400)
b=300;
c=200;
printf(“\n%d%d”,b,c);
}

ANSI C treat the variables name and Name to be same.

What is the purpose of the "auto" keyword in a function parameter list?

main() is where the program begins its execution.

What is the difference between pre-increment and post-increment operators within a function argument?