Chapter 6 : Flow of Control | Chapterwise Important MCQs Question for Class 11th computer science

Multiple Choice Questions

Question 1

In a Python program, a control structure:

1. directs the order of execution of the statements in the program ✓
2. dictates what happens before the program starts and after it terminates
3. defines program-specific data structures
4. manages the input and output of control characters

Question 2

An empty/null statement in Python is

1. go
2. pass ✓
3. over
4. ;

Question 3

The order of statement execution in the form of top to bottom, is known as ………. construct.

1. selection
2. repetition
3. sequence ✓
4. flow

Question 4

The ………. construct allows to choose statements to be executed, depending upon the result of a condition.

1. selection ✓
2. repetition
3. sequence
4. flow

Question 5

The ………. construct repeats a set of statements a specified number of times or as long as a condition is true.

1. selection
2. repetition ✓
3. sequence
4. flow

Question 6

Which of the following statements will make a selection construct?

1. if ✓
2. if-else ✓
3. for
4. while

Question 7

Which of the following statements will make a repetition construct?

1. if
2. if-else
3. for ✓
4. while ✓

Question 8

In Python, which of the following will create a block in a compound statement ?

1. colon
2. statements indented at a lower, same level ✓
3. indentation in any form
4. { }

Question 9

What signifies the end of a statement block or suite in Python ?

1. A comment
2. }
3. end
4. A line that is indented less than the previous line ✓

Question 10

Which one of the following if statements will not execute successfully ?

1. if (1, 2) :
       print(‘foo’)
2. if (1, 2)
       print(‘foo’) ✓
3. if (1, 2) :
   print(‘foo’) ✓
4. if (1) :
       print( ‘foo’ )

Question 11

What does the following Python program display ?

x = 3                                
if x == 0:                          
    print ("Am I here?", end = ' ')   
elif x == 3:                         
    print("Or here?", end = ' ')
else :                               
    pass                             
print ("Or over here?")

1. Am I here?
2. Or here?
3. Am I here? Or here?
4. Or here? Or over here? ✓
5. Am I here? Or over here?

Question 12

If the user inputs : 2<ENTER>, what does the following code snippet print?

x = float(input())
if(x==1):
    print("Yes")
elif (x >= 2):
    print("Maybe")
else:
    print ("No")

1. Yes
2. No
3. Maybe ✓
4. Nothing is printed
5. Error

Question 13

Consider the following code segment:

a = int(input("Enter an integer: "))
b = int(input("Enter an integer: "))
if a <= 0:
   b = b +1
else:
   a = a + 1
if a > 0 and b > 0: 
   print ("W") 
elif a > 0:
   print("X") 
if b > 0:
   print("Y") 
else:
   print("Z")

What letters will be printed if the user enters 0 for a and 0 for b ?

1. Only W
2. Only X
3. Only Y ✓
4. W and X
5. W, X and Y

Question 14

Consider the following code segment:

a = int(input("Enter an integer: "))
b = int(input("Enter an integer: "))
if a <= 0:
   b = b +1
else:
   a = a + 1
if a > 0 and b > 0: 
   print ("W") 
elif a > 0:
   print("X") 
if b > 0:
   print("Y") 
else:
   print("Z")

What letters will be printed if the user enters 1 for a and 1 for b ?

1. W and X
2. W and Y ✓
3. X and Y
4. X and Z
5. W, X and Y

Question 15

Consider the following code segment:

a = int(input("Enter an integer: "))
b = int(input("Enter an integer: "))
if a <= 0:
   b = b +1
else:
   a = a + 1
if a > 0 and b > 0: 
   print ("W") 
elif a > 0:
   print("X") 
if b > 0:
   print("Y") 
else:
   print("Z")

What letters will be printed if the user enters 1 for a and -1 for b?

1. W and X
2. X and Y
3. Y and Z
4. X and Z ✓
5. W and Z

Question 16

Consider the following code segment:

a = int(input("Enter an integer: "))
b = int(input("Enter an integer: "))
if a <= 0:
   b = b +1
else:
   a = a + 1
if a > 0 and b > 0: 
   print ("W") 
elif a > 0:
   print("X") 
if b > 0:
   print("Y") 
else:
   print("Z")

What letters will be printed if the user enters 1 for a and 0 for b ?

1. W and X
2. X and Y
3. Y and Z
4. X and Z ✓
5. W and Z

Question 17

Consider the following code segment:

a = int(input("Enter an integer: "))
b = int(input("Enter an integer: "))
if a <= 0:
   b = b +1
else:
   a = a + 1
if a > 0 and b > 0: 
   print ("W") 
elif a > 0:
   print("X") 
if b > 0:
   print("Y") 
else:
   print("Z")

What letters will be printed if the user enters -1 for a and -1 for b?

1. Only W
2. Only X
3. Only Y
4. Only Z ✓
5. No letters are printed

Question 18

What values are generated when the function range(6, 0, -2) is executed ?

1. [4, 2]
2. [4, 2, 0]
3. [6, 4, 2] ✓
4. [6, 4, 2, 0]
5. [6, 4, 2, 0, -2]

Question 19

Which of the following is not a valid loop in Python ?

1. for
2. while
3. do-while ✓
4. if-else ✓

Question 20

Which of the following statement(s) will terminate the whole loop and proceed to the statement following the loop ?

1. pass
2. break ✓
3. continue
4. goto