Python MCQ and Answers – Strings

This collection of Python Multiple Choice Questions and Answers (MCQs): Quizzes & Practice Tests with Answer focuses on “Variables And Operators”.

1. What is the output of the following code?

print("x"+"yz")

A x

B yz

C xyz

D yzx

The + operator is used to concatenate two or more strings in Python.

2. What is the output of the following code?

str="4/2"
print("str")

A 2

B 4/2

C str

D Compilation error

In the above code, “str” is written within double quotes so it will print str as output.

3. Which of the following will raise an error if `str = "hello"`?

A print(str[3])

B str[2]="a"

C print(str[0:9])

D Both B and C

Strings are immutable. So, they cannot be modified.

4. What is the output of `print("hello"[2:])`?

A he

B hel

C lo

D llo

In the above code we have applied the Slice operation on the string.

5. What is the output of the following code?

str = "StackHowTo"
print(str[5:8])

A StackHow

B HowTo

C How

D StackHowTo

In the above code we have applied the Slice operation on the string.

6. What is the output of the following code?

str1 = "StackHowTo"

str2 = str1.replace('o','O')

print(str2)

A StackHOwTo

B StackHOwTO

C StackHowTo

D StackHowTO

In the above code replace() function is used to replace all the existing “o” by “O” in the given string.

7. Which of the following operators cannot be used when handling strings?

A *

B –

C +

D All of the above

+ operator is used to concatenate and * operator is used to multiply strings.

8. What is the output of the following code?

print('Stack' 'HowTo')

A StackHowTo

B Stack HowTo

C Stack

D Compilation error

String disconnected by whitespace are permited. They are concatenated.

9. What is the output of the following code?

str ="Hello"

str.upper()

print(str)

A Hello

B HELLO

C hello

D Compilation error

str.upper() returns the uppercase of str. But, it doesn’t change the string. So, it will output the original string.

10. What will return the following code?

str = "blue, green, yellow, red"

str.find("green")

A It returns the 1st index position of the 1st occurrence of “green” in str.

B It returns the last index position of the last occurrence of “green” in str.

C It returns the last index position of the 1st occurrence of “green” in str.

D It returns the 1st index position of the 1st occurrence of “green” in str.

It returns the 1st index position of the 1st occurrence of “green” in str.

1. What is the output of the following code?

2. What is the output of the following code?

3. Which of the following will raise an error if str = "hello"?

4. What is the output of print("hello"[2:])?

5. What is the output of the following code?

6. What is the output of the following code?

7. Which of the following operators cannot be used when handling strings?

8. What is the output of the following code?

9. What is the output of the following code?

10. What will return the following code?

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3. Which of the following will raise an error if `str = "hello"`?

4. What is the output of `print("hello"[2:])`?