12th Class Computer Science Chapter 11 Short Questions with Answers Online Preparation

Question # 1

Define Selection Structure.

Ans 1: Selection Structure : ASelection Structure chooses which statement or a block of statements is to execute.
Types : In C, there are two basic selection statements:
- If-else
- Switch

Question # 2

What is the output of the following statement , if grade='B'?If (grade = ='A' || grade == 'B' && grade =='C')Printf ("Fail");ElsePrintf ("Pass");

Ans 1: Output : Pass

Question # 3

Describe sequence structure.

Ans 1: Sequence Structure: In case of sequence structure , instruction are executed in the same order in which they are specified in the program.

Question # 4

Write use of if,else if statements.

Ans 1: Nested if statement can become quite complex, if there are more than three alternatives and indentation in not consistent, it may be difficult to determineThe logical structure of the if statement. In such situations,if statements with multiple alternatives (if-else-if) can be a good option.The general of if -else statements is as follows:Syntax The general form of if -else -if statement is as follows:If (condition1,) statement,;Else if (condition2) statement2; " " "Else if (conditionn) statementni) Else statementki

Question # 5

Trace the output.Void main ( ){Int p, q, r;P =10;Q =3;R= 2;If ((p+q)< 14 &&(r < q-3))Printf ("%d",r);ElsePrintf (%d",p);Getch ( ) ;}

Ans 1: Output: P =10

Question # 6

Find Errors.
#include (Stdio.n);
#include <conio.c>
Void main ()
{
If (16>10) then printf ("%C","Pakistan");
Getch( );

Ans 1: Errors:
- 1st error is wrong libraries have been used.
- 2nd error is bracket and terminator has been used with library.
- 3rd error is word then has been use in If statement.

Question # 7

What is the use of Switch Statement?

Ans 1: Rules of Using Switch Case: There are the following rules of using switch case in C program:
- Case label must be unique.
- Case labels must end with Colon .
- Case labels must have constants/ constant expression.
- Switch case should have at most one default label.

Question # 8

Write the syntax of "if -else "statement.

Ans 1: Syntax :
If (condition)
{ block of if (true case )
}

Else
{ block of else (false true ) }

Question # 9

Trace the error in the following code.
Void main (void);
{
Int a , b;
A= -10
B = 40
If (a< 0);
B=SQRT (a);
Printf ("result = %f", b );
Getch( );
}

Ans 1: Errors:
- 1st errors is ; terminator sign has been used with Main starting which is not allowed.
- 2nd error terminatorsign has been not used in statements where variable are being defined.
- 3rd eror is terminator sign has been used with If statement which is not allowed .

Question # 10

Find error from the following .
Int y;z;
If(y = = z)
Printf ("yes)"

Ans 1: Error :
- 1st error is method to declare variable is wrong
- 2nd error is terminator has not been used in printf statement

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ICS Part 2 Computer Science Chapter 11 Short Questions Test With Answer

Online Short Questions For Chapter 11 "ICS Part 2 Computer Science Chapter 11 Short Questions Preparation "

Computer Science - ICS Part 2 Computer Science Chapter 11 Short Questions Preparation

Define Selection Structure.

What is the output of the following statement , if grade='B'?If (grade = ='A' || grade == 'B' && grade =='C')Printf ("Fail");ElsePrintf ("Pass");

Describe sequence structure.

Write use of if,else if statements.

Trace the output.Void main ( ){Int p, q, r;P =10;Q =3;R= 2;If ((p+q)< 14 &&(r < q-3))Printf ("%d",r);ElsePrintf (%d",p);Getch ( ) ;}

Find Errors.#include (Stdio.n);#include <conio.c>Void main (){If (16>10) then printf ("%C","Pakistan");Getch( );

What is the use of Switch Statement?

Write the syntax of "if -else "statement.

Trace the error in the following code.Void main (void);{Int a , b;A= -10B = 40If (a< 0);B=SQRT (a);Printf ("result = %f", b );Getch( );}

Find error from the following .Int y;z;If(y = = z)Printf ("yes)"

Prepare Complete Set Wise Questions For Chapter 11 "ICS Part 2 Computer Science Chapter 11 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

ICS Part 2 Computer Science Chapter 11 Short Questions Preparation - Set 1

Define Selection Structure.

What is the output of the following statement , if grade='B'?If (grade = ='A' || grade == 'B' && grade =='C')Printf ("Fail");ElsePrintf ("Pass");

Describe sequence structure.

Write use of if,else if statements.

Trace the output.Void main ( ){Int p, q, r;P =10;Q =3;R= 2;If ((p+q)< 14 &&(r < q-3))Printf ("%d",r);ElsePrintf (%d",p);Getch ( ) ;}

Find Errors.#include (Stdio.n);#include <conio.c>Void main (){If (16>10) then printf ("%C","Pakistan");Getch( );

What is the use of Switch Statement?

Write the syntax of "if -else "statement.

Trace the error in the following code.Void main (void);{Int a , b;A= -10B = 40If (a< 0);B=SQRT (a);Printf ("result = %f", b );Getch( );}

Find error from the following .Int y;z;If(y = = z)Printf ("yes)"

ICS Part 2 Computer Science Chapter 11 Short Questions Preparation - Set 2

Find Error.Int price= 10If (price! =10)price=0

Trace the output of the following code.Inta = 4, b=2, c,=5;If (a>b)A= 5;If (c==a)A= 6;Printf("%d",a);

Determine the output of the following code.Inta a, b;B= 20; a=10;If (b< =a)Printf ("No")ElsePrintf ("yes")

Trace the error in the following code.Void main (void);{Int x, y, zIf (x> y);Printf ("X is largest");ElsePrintf("Y is largest")Getch ( );}

What is the use of Switch Statement?

Predict the output for the following code.Int a, b,c;A= 10;B= 3;If (a %b == 1) C= 0;ElseC=1;Printf ("%d",c)

Trace the erroe in the following code.Void main ( ){Int x = 0If (x = 1 )Printf ("hello");ElsePrintf ("bye")}

List types of control structure.

Find error in the following segment .Float y 3.14;If (y == 3)Printf ("Errors");

Write down output of the following code.Void main ( ){int x= 10;If (x! = 10)Printf ("Hello");ElsePrintf ("World");}

ICS Part 2 Computer Science Chapter 11 Short Questions Preparation - Set 3

Trace Error :Void main ( ){Int a =2 ;If (a ==1)Printf ("ok);ElsePrintf ( "cancel");Getch( );

What will be output of the following ?Int x=5, y=10;If (x>y )Y =2;

Trace the error:Int a = 2If (a=1 printf( "OK);ElsePrintf ("Cancel")

List types of control structure.

Trace the errors from the following code segments.Void main ();{int x= 10;Int y = 15;If (x =y)Printf ("x is equal");ElsePrintf ("x is not equal")}

Trace the error.Void main ( ){Int a, bA = -10B = 40If (a<0) ; b= sqrt (a);Printf ("Result = %f",b);Getch( ); }

Trace the error in the following code.#include <stdio.h>Void main( );{If (16<18) thenPrintf ("%c",ok);Getch ( );}

Trace the error in the following code.Void main (void);{Int x, y,zIf (x> y);Printf ("Xis largest");ElsePrintf("Y is largest")Getch( );}

What is the error in the following codes?Int x= 10, y=20;IF (X >10&Y<30)PRINTF ("%D",X+Y);

Find out errors:#include <stdio>Void main( )[If (50>20) thenPrintf ("Islamic Country ");Getch( )}

ICS Part 2 Computer Science Chapter 11 Short Questions Preparation - Set 4

What is the output of the following code?Int m, n;M = 0;N= m;If;(m = =n)Printf ("BWP");Elseprintf("LHR");

Find output of the following code .Int a = 1,b =6;If (a +b <7);{Printf ("%d",a);}Else{Printf {"%d",b);}

Predict the output for the following code.Int a, b,c;A= 10;B= 3;If (a %b == 1) C= 0;ElseC=1;Printf ("%d",c)

Write the syntax of if-else statement .

Trace the error in the following code.Void main (void);{Int x, y,zIf (x> y);Printf ("Xis largest");ElsePrintf("Y is largest")Getch( );}

Trace the error from the following code.Void main ( ){Int a =2;If (a =1);Printf ("ok");ElsePrintf ("No");}

Trace the output.If (1==2)Printf ("hello");EldePrintf( "hello");ElsePrintf ("correct it");

Write down output of the following code.Void main ( ){int x= 10;If (x! = 10)Printf ("Hello");ElsePrintf ("World");}

Write use of if,else if statements.

Define Selection Structure.

ICS Part 2 Computer Science Chapter 11 Short Questions Preparation - Set 5

Find output.Int p= 3, q = 5;If ((p>q)|| (q! =s))P = p+1;ElseP = p*2;Printf ("p =%d",p);

Trace the error.Int a ; b= 5If (a<b)Printf ("\nA is less than b");

Trace the error in the following code.Void main (void);{Int a , b;A= -10B = 40If (a< 0);B=SQRT (a);Printf ("result = %f", b );Getch( );}

Trace the error.Void main ( ){Int a, bA = -10B = 40If (a<0) ; b= sqrt (a);Printf ("Result = %f",b);Getch( ); }

Define nested -if statement.

Trace the error from the following code.Void main ( ){Int a =2;If (a =1);Printf ("ok");ElsePrintf ("No");}

Find the output of the following code#include <stdiio.h>Void main ( ){Char grade ='c';If (grade ='a' || grade= 'b' & &grade ='c'Printf ("FAIL");ElsePrints ("pass");}

Write use of if,else if statements.

Find Errors.
#include (Stdio.n);
#include <conio.c>
Void main ()
{
If (16>10) then printf ("%C","Pakistan");
Getch( );

Trace the error in the following code.
Void main (void);
{
Int a , b;
A= -10
B = 40
If (a< 0);
B=SQRT (a);
Printf ("result = %f", b );
Getch( );
}

Find error from the following .
Int y;z;
If(y = = z)
Printf ("yes)"

Find Errors.
#include (Stdio.n);
#include <conio.c>
Void main ()
{
If (16>10) then printf ("%C","Pakistan");
Getch( );

Trace the error in the following code.
Void main (void);
{
Int a , b;
A= -10
B = 40
If (a< 0);
B=SQRT (a);
Printf ("result = %f", b );
Getch( );
}

Find error from the following .
Int y;z;
If(y = = z)
Printf ("yes)"

Find Error.
Int price= 10
If (price! =10)
price=0

Trace the output of the following code.
Inta = 4, b=2, c,=5;
If (a>b)
A= 5;
If (c==a)
A= 6;
Printf("%d",a);

Determine the output of the following code.
Inta a, b;
B= 20; a=10;
If (b< =a)
Printf ("No")
Else
Printf ("yes")

Predict the output for the following code.
Int a, b,c;
A= 10;
B= 3;
If (a %b == 1)
C= 0;
Else
C=1;
Printf ("%d",c)

Trace the erroe in the following code.
Void main ( )
{
Int x = 0
If (x = 1 )
Printf ("hello");
Else
Printf ("bye")
}

Find error in the following segment .
Float y 3.14;
If (y == 3)
Printf ("Errors");

Trace Error :
Void main ( )
{
Int a =2 ;
If (a ==1)
Printf ("ok);
Else
Printf ( "cancel");
Getch( );

What will be output of the following ?
Int x=5, y=10;
If (x>y )
Y =2;

What is the error in the following codes?
Int x= 10, y=20;
IF (X >10&Y<30)
PRINTF ("%D",X+Y);

Find out errors:
#include <stdio>
Void main( )
[
If (50>20) then
Printf ("Islamic Country ");
Getch( )
}

Find output of the following code .
Int a = 1,b =6;
If (a +b <7);
{
Printf ("%d",a);
}
Else
{
Printf {"%d",b);
}

Predict the output for the following code.
Int a, b,c;
A= 10;
B= 3;
If (a %b == 1)
C= 0;
Else
C=1;
Printf ("%d",c)

Trace the output.
If (1==2)
Printf ("hello");
Elde
Printf( "hello");
Else
Printf ("correct it");

Find output.
Int p= 3, q = 5;
If ((p>q)|| (q! =s))
P = p+1;
Else
P = p*2;
Printf ("p =%d",p);

Trace the error.
Int a ; b= 5
If (a<b)
Printf ("\nA is less than b");

Trace the error in the following code.
Void main (void);
{
Int a , b;
A= -10
B = 40
If (a< 0);
B=SQRT (a);
Printf ("result = %f", b );
Getch( );
}

Find the output of the following code
#include <stdiio.h>
Void main ( )
{
Char grade ='c';
If (grade ='a' || grade= 'b' & &grade ='c'
Printf ("FAIL");
Else
Prints ("pass");
}

Track the errors .
Int p= 20;
If( price == 20 )
Price = 0;
Else
Price =2,

Find out errors:
#include <stdio>
Void main( )
[
If (50>20) then
Printf ("Islamic Country ");
Getch( )
}

Trace the output.
If (1==2)
Printf ("hello");
Elde
Printf( "hello");
Else
Printf ("correct it");

Trace Error :
Void main ( )
{
Int a =2 ;
If (a ==1)
Printf ("ok);
Else
Printf ( "cancel");
Getch( );

Trace the error.
Int a ; b= 5
If (a<b)
Printf ("\nA is less than b");