Python loops

Question 1

Types of python loops

Answer 1

1. While loops

2. For loops

Question 2

While loops repeatedly execute a statement or block of statements as long as the condition is _____

Answer 2

TRUE

Question 3

When the condition is _____ the loop terminates and the line immediately after the loop in a program is executed

Answer 3

FALSE

Question 4

Python uses indentation as its method of _______ statements

Answer 4

to indicate a block/grouping of code

Question 5

All the statements indented by the same number of character spaces after a programming construct are considered to be part of a single _____ of code

Answer 5

block

Question 6

count = 0
while (count < 3):
count = count + 1

Identify the

a) initializing of the counter variable
b) checking of condition
c) update
d) sentinel

Answer 6

a) initialize count - count =0
b) check condition - while (count<3)
c) update - count = count +1
d) sentinel - 3

Question 7

count = 0
while (count < 3):
count = count + 1
print(“Hello Geek”)

What would be the output?

Answer 7

Hello Geek
Hello Geek
Hello Geek

Question 8

The _____ clause is only executed when your while condition becomes false

Answer 8

else

Question 9

____ loops are used for sequential traversal. For example: traversing a list or string or array etc.

Answer 9

For

Question 10

In Python, the counter is not the letter __

Answer 10

C

Question 11

The _____ function gives a sequence of numbers based on the start and stop index given

Answer 11

Range

Question 12

In case the start index is not given, the index is considered as __, and it will increment the value by 1 till the stop index.
(range function)

Eg. for i in range(10):
print(i, end =” “)

Answer 12

0

Question 13

range(5)

What would the output be?

Answer 13

0,1,2,3,4

Question 14

n = 4
for i in range(0, n):
print(i)

What is printed?

Answer 14

Output
0
1
2
3

Question 15

_______ iterations are for when you DON’T know how many times to do the action. They require you to initialize, check and update on your own

Answer 15

unbounded

Question 16

d = 12
while d>9
       print (d,"...getting smaller")
       d = d-1
print ("Dat number is too small now.")

What is the output?

Where is the variable initialized?

What is the counter?

Where is the counter being updating?

Identify the sentinel

Answer 16

12…getting smaller
11…getting smaller
10…getting smaller
Dat number is too small now.

variable initialized - d = 12

counter - d

counter updating - d = d-1

sentinel - 9

Question 17

In python there is no end while.

How can you indicate that the loop is finish?

Answer 17

Stop indenting

Question 18

Define sentinel

Answer 18

the value that allows you to end the loop

Question 19

In the range there are two values, one to _____the loop and one to identify the ______of the loop PLUS ONE.

Answer 19

start

end

Question 20

for x in range (2,6)
print(x)

Where does it starts and stops?

What is the output ?

Answer 20

start - 2
stops - 5

Output 
2
3
4
5

Question 21

for letter in “STAR”:
print (“Give me a: ,letter, “!”)

OUTPUT
Give me a: S!
Give me a: T!
Give me a: A!
Give me a: R!

this shows for loops through the letters in a ______

Answer 21

String

Question 22

For i in (10)
print “LOVE”

Which number does this loop starts and stops?
How many times will LOVE be printed?

Answer 22

start - 0
stop -9

10 ten

Question 23

for i in range (5):
print( i + 1)

What is the output?

Answer 23

1
2
3
4
5