CBSE Guess > Papers > Important Questions > Class XI > 2013 > Computer Science > Computer Science By Mr. Prabhuji Gupta
CBSE CLASS XI
Flow Of Control
Q 1 What kind of actions can statements perform ?
Q 2 When is a null or empty statement required ?
Q 3 How is a block statement written ?
Q 4 What does iteration mean?
Q 5 What is the syntax of the if statement ?
Q 6 What is the following segment checking ?
if (ch=’ ‘)
Spaces ++;
Q 7 Give an example of a test condition comparing it with a literal using If construct?
Q 8 Explain the if –else statement?
Q 9 What is the result of if condition ending with ; semicolon.
Q 10 What is nested if ?
Q 11 Mention two differences between if and conditional operator?
Q 12 What is the Nested if structure?
Q 13 Explain the update expression in the for loop?
Q 14 Give the output of the following code:
int i=10;
for(i=10;i>=7;i- -)
cout<< i << endl;
Q 15 Give the output of the following code.
int i=1;
for(;;)
{
cout << i++ << ” “ ;
if(i>5)
break;
}
Q 16 List the variations of the While loop?
Q 17 In the following segment, can the loop mentioned, be used as time delay loop ?
Lwait=0;
while(++Lwait<500000) ;
Q 18 Display the output of the following program.
int i=10;
while(i>=6)
{
cout << i < < endl ;
i - -;
i - -;
}
Q 19 How can the statements of a program be executed ?
Q 20 Elaborate the structure of a Switch statement?
Q 21 State any three difference between switch statement and if-else statement ?
Q 22 Give examples of 3 test conditions which work with If.
a) comparing a literal
b) comparing 2 variables
c) testing truth value of a variable
Q 23 Explain S1, R and R2 in the following for loop statement? for(S1;R;R2)
Q 24 List any 3 variations in the for loop?
Q 25 What is the difference between if-else and switch ?
Q 26 Write a program to evaluate the factorial of a number ?
Submitted By Mr. Prabhuji Gupta
Email: [email protected]
