TCS NQT Questions on Loops Quiz– 1

Question 1

Time: 00:00:00
The output of the code below is ?
#include <stdio.h>
int a;
void main()
{
if (a)
printf(“Hello”);
else
printf(“world”);
}

Hello

Hello

world

world

compile time error

compile time error

none

none

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Global variables are automatically initialized to 0.

A. Hello

the correct answer is none

Start

Question 2

Time: 00:00:00
The output of the code below is

#include <stdio.h>
void main()
{
int a = 5;
if (true);
printf(“hello”);
}

It will display hello

It will display hello

It will throw an error

It will throw an error

No Output

No Output

Depends on Compiler

Depends on Compiler

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

If condition shouldn’t end with semicolon

\"true\" is taken as an undeclared variable by the compiler thus it shows an error.

B

B Error

Start

Question 3

Time: 00:00:00
The output of the code below is
#include <stdio.h>
void main()
{
int a = 0;
if (a == 0)
printf(“hi”);
else
printf(“how are u”);
printf(“hello”);
}

hi

hi

how are you

how are you

hello

hello

hihello

hihello

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Start

Question 4

Time: 00:00:00
The following code ‘for(;;)’ represents an infinite loop. It can be terminated by.

break

break

exit(0)

exit(0)

abort()

abort()

all of the mentioned

all of the mentioned

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Start

Question 5

Time: 00:00:00
The correct syntax for running two variable for loop simultaneously is.

a) for (i = 0; i < n; i++) for (j = 0; j < n; j += 5)

a) for (i = 0; i < n; i++) for (j = 0; j < n; j += 5)

for (i = 0, j = 0;i < n, j < n; i++, j += 5)

for (i = 0, j = 0;i < n, j < n; i++, j += 5)

for (i = 0; i < n;i++){}

for (i = 0; i < n;i++){}

for (j = 0; j < n;j += 5){}

for (j = 0; j < n;j += 5){}

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

B

Start

Question 6

Time: 00:00:00
Which for loop has range of similar indexes of ‘i’ used in

for (i = 0;i < n; i++) ?

for (i = n; i>0; i--)

for (i = n; i>0; i--)

for (i = n; i >= 0; i--)

for (i = n; i >= 0; i--)

for (i = n-1; i>0; i--)

for (i = n-1; i>0; i--)

for (i = n-1; i>-1; i--)

for (i = n-1; i>-1; i--)

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Start

Question 7

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
void main()
{
int x = 0;
for (x < 3; x++)
{
printf(“Hello”);
}
}

Compile time error

Compile time error

Hello is printed thrice

Hello is printed thrice

Nothing

Nothing

Varies

Varies

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

for (;x < 3; x++) ; need

Start

Question 8

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
void main()
{
double x = 0;
for (x = 0.0; x < 3.0; x++)
printf(“Hello”);
}

Run time error

Run time error

Hello is printed thrice

Hello is printed thrice

Hello is printed twice

Hello is printed twice

Hello is printed infinitely

Hello is printed infinitely

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Start

Question 9

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
int main()
{
do{
printf(“Inside while loop “);
}while (0);
printf(“Outside loop\n”);
}

Inside while loop

Inside while loop

Inside while loop Outside loop

Inside while loop Outside loop

Outside loop

Outside loop

Infinite loop

Infinite loop

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Start

Question 10

Time: 00:00:00
The output of this C code is?

#include <stdio.h>
int main()
{
int i = 0;
do {
i++;
printf(“Inside while loop\n”);
} while (i < 3);
}

Inside while loop will be printed thrice.

Inside while loop will be printed thrice.

Outside while loop

Outside while loop

Depends on the compiler

Depends on the compiler

Compile time error

Compile time error

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Start

["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]

Buy TCS NQT Paid Materials

Paid Materials TCS NQT

Join TCS NQT Online Classes

Personalized Analytics only Availble for Logged in users

Analytics below shows your performance in various Mocks on PrepInsta

Your average Analytics for this Quiz

Rank

-

Percentile

0%

Completed

0/0

Accuracy

0%

Comments