Python McQs
Q.1 What is the purpose of an if statement in Python?
A. To loop through a sequence
B. To execute a block conditionally
C. To define a function
D. To handle exceptions
Q.2 Find the mistake:
user_input = input(“Enter a number: “);
print(“You entered: “, int(user_input))
A. Syntax error
B. No error
C. int() should be str()
D. input() function used incorrectly
Q.3 Identify the error:
print(“Hello World!”))
A. Missing quotation marks
B. Extra parenthesis
C. Missing parenthesis
D. No error
Q.4 Initialize a variable with “Python”, print first and last character
A. Prints “Pn”
B. Prints “Py”
C. Prints “Python”
D. Error
Pseudocode:
Q.5 Print each element in list [1, 2, 3] with a space in between
A. 123
B. 37623
C. [1, 2, 3]
D. 37623
Pseudocode:
Q.6 Ask user for number, multiply by 2, print result
A. Reads number, prints double
B. Reads string, prints same
C. Error in input
D. No output
Q.7 What is the output of
print(“Hello”, end=’@’);
print(“World”)
A. HelloWorld
B. Hello@World
C. Hello World
D. Hello@ World
Q.8 What will be the output of
print(“Python”, “Programming”, sep=”-“)
A. Python-Programming
B. Python Programming
C. PythonProgramming
D. Python,Programming
Q.9 What does the sep parameter do in the print() function?
A. Separates lines
B. Specifies separator between values
C. Separates syntax errors
D. None of these
Q.10 What is the purpose of the end parameter in the print() function?
A. To add a space at the end
B. To end the script
C. To specify the string appended after the last value
D. To break the line
Q.11 Which function in Python is used to display data as output?
A. display()
B. print()
C. show()
D. output()
Q.12 What is the default type of data returned by the input() function in Python 3.x?
A. int
B. string
C. boolean
D. list
Q.13 Which function is used to read input from the console in Python?
A. input()
B. read()
C. scan()
D. getInput()
Q.14 Find the mistake:
x = (1, 2, 3);
x[1] = 4;
print(x)
A. Tuples are immutable
B. x[1] should be x[2]
C. Syntax error
D. No error
Q.15 Identify the error in this code:
x = [1, 2, 3];
print(x)
A. Syntax error in variable x
B. Missing parenthesis in print
C. Missing bracket in x
D. No error
Q.16 Evaluate this pseudocode:
Set x = [1, 2, 3];
If x is a list, print length of x, else print “Not a list”
A. 3
B. Not a list
C. Error
D. 0
Q.17 Pseudocode:
Variable
x = “Python”;
Check if x is a string,
if yes
print “String”,
otherwise
“Not a String”
A. String
B. Not a String
C. Error
D. None
Q.18 What will be the output of the following pseudocode?
Initialize x as 10;
If x is of type int,
print “Integer”
else
print “Not Integer”
A. Integer
B. Not Integer
C. Error
D. None
Q.19 What does the following code output:
x = [1, 2, 3];
print(type(x) == list)
A. TRUE
B. FALSE
C. Error
D. None
Q.20 What is the output of the following code snippet:
print(type(“Hello, World!”))
A. <class ‘str’>
B. <class ‘int’>
C. <class ‘list’>
D. <class ‘list’>
Q.21 Which of the following is an immutable data type?
A. Lists
B. Dictionaries
C. Tuples
D. Sets
Q.22 What will be the data type of the variable x after this assignment:
x = 3.5?
A. int
B. float
C. str
D. complex
Q.23 Which of the following is not a Python built-in data type?
A. dict
B. array
C. set
D. frozenset
Q.24 What data type would you use to store a whole number in Python?
A. int
B. float
C. str
D. bool
Q.25 Which of the following is a mutable data type in Python?
A. String
B. Tuple
C. List
D. Integer
Q.26 Which of these data types does Python not natively support?
A. Lists
B. Tuples
C. Arrays
D. Dictionaries
Q.27 Python is a:
A. Low-level language
B. High-level language
C. Middle-level language
D. Machine-level language
Q.28 Which of the following is a valid Python comment?
A. <!−− −−>
B. /* */
C. #
D. //
Q.29 Which version of Python removed the print statement?
A. Python 1.x
B. Python 2.x
C. Python 3.x
D. Python 4.x
Q.30 Python is known as:
A. A compiled language
B. An interpreted language
C. A machine language
D. An assembly language
Q.31 What will be the output of the following code?
myTuple = (1, 2, 3);
print(myTuple[1])
A. 1
B. 2
C. 3
D. Error
Q.32 How is memory allocation for lists and tuples different in Python?
A. Lists use more memory than tuples
B. Tuples use more memory than lists
C. Both use the same amount of memory
D. Memory usage is random and unpredictable
Q.33 What does myList[::-1] do?
A. Reverses myList
B. Copies myList
C. Removes the last element from myList
D. Sorts myList in descending order
Q.34 In Python, how can you combine two lists, list1 and list2?
A. list1 + list2
B. list1.append(list2)
C. list1.combine(list2)
D. list1.extend(list2)
Q.35 How do you access the last element of a list named myList?
A. myList[0]
B. myList[-1]
C. myList[len(myList)]
D. myList[-2]
Q.36 What is the main difference between a list and a tuple in Python?
A. Syntax
B. Data type
C. Mutability
D. Method of declaration
Q.37 Find the mistake:
while True:
print(“Looping”);
break
A. Infinite loop
B. No error
C. The loop will never break
D. Incorrect use of print statement
Q.38 Identify the error:
for i in range(5)
print(i)
A. Missing colon after range(5)
B. Missing parentheses around print
C. Syntax error in range
D. No error
Q.39 Pseudocode:
For i = 0 to 4,
print “Python”
if i is even
A. Prints “Python” twice
B. Prints “Python” three times
C. Prints “Python” four times
D. No output
Q.40 Pseudocode:
For numbers 1 to 5,
print number
if it’s odd
A. Prints 1 3 5
B. Prints 2 4
C. Prints all numbers 1 to 5
D. No output
Q.41 Pseudocode:
For each element in list [1, 2, 3],
print element
A. Prints 1 2 3
B. Prints 3 2 1
C. Prints [1, 2, 3]
D. No output
Q.42 Pseudocode:
Set x = 10;
While x > 0,
decrement x by 1,
print x
A. Prints numbers from 10 to 1
B. Prints numbers from 1 to 10
C. Prints numbers from 9 to 0
D. Infinite loop
Q.43 What will the following code print?
i = 5;
while i > 0:
print(i);
i -= 1
A. 5 4 3 2 1
B. 5 4 3 2
C. 1 2 3 4 5
D. Infinite loop
Q.44 What is the output of the following code?
for i in range(3):
print(i)
A. “0 1 2”
B. “1 2 3”
C. “0 1 2 3”
D. “Error”
Q.45 What is the difference between a for loop and a while loop in Python?
A. for is used for fixed iterations
B. while is faster than for
C. for can’t use conditional statements
D. There is no difference
Q.46 In a while loop, what happens if the condition never becomes False?
A. The loop runs forever
B. The loop stops after 10 iterations
C. Syntax error
D. The loop doesn’t start
Q.47 What does the continue statement do inside a loop?
A. Pauses the loop
B. Stops the loop
C. Skips the current iteration
D. Exits the program
Q.48 Which statement immediately terminates a loop in Python?
A. break
B. continue
C. exit
D. stop
Q.49 What is the use of a for loop in Python?
A. To repeat a block a fixed number of times
B. To check a condition
C. To declare variables
D. To handle exceptions
Q.50 Find the mistake:
if x > 5:
print(“Yes”)
elif x < 10:
print(“No”)
A. Syntax error in the if block
B. Missing colon after elif
C. Missing else between blocks
D. No error
Q.51 Identify the error:
if x > 10
print(“Greater”)
A. Missing parentheses around condition
B. No error
C. Missing colon after condition
D. Incorrect comparison operator
Q.52 Pseudocode: What is printed when the temperature is 25 degrees?
If temperature > 30,
print “Hot”,
elif temperature > 20,
print “Warm”,
else
“Cold”
A. Prints “Hot”
B. Prints “Warm”
C. Prints “Cold”
D. No output
Q.53 Pseudocode:
Check if a number is divisible by 2,
if yes
print “Even”,
otherwise
“Odd”
A. Prints “Even”
B. Prints “Odd”
C. Error
D. No output
Q.54 Pseudocode:
If age > 18,
print “Adult”,
else
print “Minor”
A. Prints “Adult”
B. Prints “Minor”
C. Prints “Age”
D. No output
Q.55 What will the following code print?
x = 10;
if x < 10:
print(“Less”);
else:
print(“Not Less”)
A. Less
B. Not Less
C. Error
D. Nothing
Q.56 What is the output of the following code?
x = 10;
if x > 5:
print(“Greater”)
A. Error
B. Greater
C. Nothing
D. Less
Q.57 What is the outcome if the elif and else blocks are missing in an if statement?
A. Syntax error
B. The program will stop
C. Nothing, it’s optional
D. Runtime error
Q.58 Which of the following is a valid conditional statement in Python?
A. if a = 5:
B. if a == 5:
C. if a <> 5:
D. if (a = 5):
Q.59 What will happen if the condition in an if statement in Python evaluates to False?
A. The program will stop
B. It will execute the else block
C. It will raise an error
D. It will skip to the next if
Q.60 In Python, which keyword is used to check additional conditions if the previous conditions fail?
A. elif
B. else if
C. then
D. switch
Q.61 What does the following code do?
with open(‘file.txt’, ‘w’) as file:
file.write(“Hello World”)
A. Reads from file.txt
B. Writes “Hello World” to file.txt
C. Deletes file.txt
D. Creates a new file
Q.62 When using with open(file) as f, what does with do?
A. Ensures file is saved
B. Automatically closes the file
C. Opens file in write mode
D. Reads entire file
Q.63 Which file mode in Python allows you to read and write to a file?
A. r+
B. w+
C. a+
D. rb+
Q.64 What is the purpose of the open() function in Python?
A. To read data from URL
B. To open a new Python file
C. To open a file
D. To create a Python module
Q.65 Find the mistake:
import math;
print(math.sqr(4))
A. Incorrect module
B. Incorrect function name
C. Wrong number of arguments
D. No error
Q.66 dentify the error:
def my_func(x, y):
return x + y;
my_func(1)
A. Missing argument
B. Syntax error
C. Logic error
D. No error
Q.67 Pseudocode:
Function that checks if a number is positive, negative, or zero
A. Prints type of number
B. Returns type of number
C. No output
D. Error
Q.68 Define a function that multiplies two numbers and returns the result
A. Returns sum
B. Returns product
C. No return
D. Syntax error
Q.69 What is the output of this code:
def add(x, y):
return x + y;
print(add(3, 4))
A. 3
B. 4
C. 7
D. Error
Q.70 What will the following function return:
def example():
return 5+5
A. 5+5
B. 10
C. 0
D. None
Q.71 What is the difference between arguments and parameters in Python functions?
A. No difference
B. Parameters define, arguments call
C. Arguments define, parameters call
D. Based on data type
Q.72 How do you import a module in Python?
A. using the import keyword
B. using the include keyword
C. using the require keyword
D. using the module keyword
Q.73 In Python, what is a module?
A. A data type
B. A built-in function
C. A file with definitions
D. A code block
Q.74 What is a function in Python?
A. A variable
B. A module
C. A block of code
D. An operator
Q.75 Find the mistake:
d = {‘a’: 1, ‘b’: 2};
print(d.get(‘c’, ‘Not Found’))
A. Syntax error in the dictionary
B. get() method used incorrectly
C. Key ‘c’ doesn’t exist
D. No error
Q.76 Identify the error:
d = {[‘first’]: 1, [‘second’]: 2}
A. Syntax error with the dictionary
B. Lists can’t be dictionary keys
C. No error
D. Dictionary keys must be strings
Q.77 Pseudocode:
Given a dictionary,
print each key-value pair
A. Prints keys only
B. Prints values only
C. Prints key-value pairs
D. Error
Q.78 Pseudocode:
Initialize dictionary with {‘a’: 1, ‘b’: 2};
Update ‘b’ value to 3;
Print dictionary
A. Prints {‘a’: 1, ‘b’: 2}
B. Prints {‘a’: 1, ‘b’: 3}
C. Error
D. No output
Q.79 What will be the result of the following code?
d = {‘a’: 1, ‘b’: 2};
d[‘c’] = 3;
print(len(d))
A. 2
B. 3
C. Error
D. 1
Q.80 What is the output of the following code?
d = {‘a’: 1, ‘b’: 2};
print(d[‘b’])
A. 1
B. 2
C. b
D. KeyError
Q.81 In Python 3.7 and later, how are elements in a dictionary ordered?
A. By the order they were added
B. In ascending order of keys
C. In descending order of keys
D. Randomly
Q.82 How can you remove a key-value pair from a dictionary?
A. Using the del statement
B. Using the remove() method
C. Using the pop() method
D. Both A and C
Q.83 What happens if you try to access a non-existent key ‘k’ in a dictionary ‘d’ using d[k]?
A. Returns None
B. Returns an empty string
C. Raises a KeyError
D. Creates a new key ‘k’ with value None
Q.84 How do you access the value associated with a key ‘k’ in a dictionary ‘d’?
A. d(‘k’)
B. d[k]
C. d.get(‘k’)
D. All of the above
Q.85 What is a dictionary in Python?
A. An ordered collection of elements
B. A mutable collection of key-value pairs
C. An immutable collection of items
D. A collection of unique elements
Q.86 Find the mistake:
myTuple = (1, 2, 3);
myTuple[1] = 4
A. Tuples are immutable
B. Wrong index used
C. Syntax error in tuple declaration
D. myTuple should be a list
Q.87 Identify the error:
myList = [1, 2, 3);
myList.append(4)
A. Syntax error with the list declaration
B. append() method is used incorrectly
C. No error
D. Lists cannot contain integers
Q.88 Pseudocode:
Given a tuple (1,2,3),
print each element multiplied by 2
A. Prints 2, 4, 6
B. Prints 1, 2, 3
C. Error
D. No output
Q.89 Initialize list with values [1,2,3];
Add 4 to the end;
Print list
A. Prints [1, 2, 3]
B. Prints [1, 2, 3, 4]
C. Error
D. Prints [4, 1, 2, 3]
Q.90 What is the result of the following code?
myList = [1, 2, 3];
myList[1] = 4;
print(myList)
A. [1, 2, 3]
B. [1, 4, 3]
C. Error
D. [4, 2, 3]
Q.91 What is inheritance in object-oriented programming?
A. Sharing data between classes
B. Copying methods from one class to another
C. Deriving new classes from existing classes
D. Protecting data within a class
Q.92 Identify the error in this code:
class Animal:
def init(self, name):
name = name
A. Incorrect use of the constructor
B. name should be ‘self.name’
C. The class should have more methods
D. No error
Q.93 Pseudocode:
Define a class ‘Car’
with a method ‘drive’;
Create an instance of ‘Car’;
Call ‘drive’ method
A. Error as ‘drive’ method is undefined
B. The ‘drive’ method of the ‘Car’ instance is executed
C. Nothing as ‘Car’ has no attributes
D. A new ‘Car’ object is created
Q.94 Given the class definition:
class Dog:
def init(self, name):
self.name = name,
what does Dog(‘Buddy’).name return?
A. Dog
B. name
C. Buddy
D. An error occurs
Q.95 What is polymorphism in the context of object-oriented programming?
A. Changing the functionality of methods in subclasses
B. Creating multiple classes that inherit from a single class
C. The ability of different object types to be accessed through the same interface
D. Splitting a class into multiple smaller classes
Q.96 How is a class attribute different from an instance attribute in Python?
A. Class attributes are shared by all instances
B. Instance attributes can’t be changed
C. Class attributes can’t be accessed by instances
D. No difference
Q.97 In Python, what is ‘self’ in a class method?
A. A variable that holds the class name
B. A reference to the class itself
C. A reference to the instance that calls the method
D. A placeholder for future arguments
Q.98 What is a class in Python?
A. A blueprint for creating objects
B. A function inside an object
C. A variable inside an object
D. A specific object instance
Q.99 Identify the error in this lambda expression:
lambda x, y:
if x > y
return x
else
return y
A. Incorrect syntax for if-else
B. Lambda function cannot use conditional
C. Lambda cannot return values
D. No error
Q.100 Pseudocode:
Define a lambda to square a number, use it to get the square of 5
A. Returns 25
B. Returns 10
C. Syntax error
D. No output
Q.101 What is the output of the following lambda expression?
(lambda x, y: x * y)(3, 4)
A. 7
B. 12
C. 0
D. SyntaxError
Q.102 How is a lambda function different from a regular function defined using def in Python?
A. Lambda can only have one expression
B. Lambda can return multiple values
C. Lambda functions are faster
D. Lambda functions can’t have arguments
Q.103 What is a lambda expression in Python?
A. A one-time anonymous function
B. A named, reusable function
C. A loop structure
D. A data type
Q.104 Identify the error in this code:
[x for x in range(10)
if x%2 = 0]
A. Syntax error in range function
B. Incorrect use of assignment operator
C. List comprehension is incorrectly formed
D. No error
Q.105 Pseudocode:
Create a list of lowercase letters from a list of mixed case letters, ‘A’, ‘b’, ‘C’, ‘d’, ‘E’
A. [‘A’, ‘b’, ‘C’, ‘d’, ‘E’]
B. [‘a’, ‘b’, ‘c’, ‘d’, ‘e’]
C. [‘A’, ‘C’, ‘E’]
D. [‘b’, ‘d’]
Q.106 What does the following dictionary comprehension do?
{x: x*x for x in range(5)
if x%2 == 0}
A. Squares of all numbers from 0 to 4
B. Squares of odd numbers from 0 to 4
C. Squares of even numbers from 0 to 4
D. Cubes of even numbers from 0 to 4
Q.107 What will this list comprehension produce:
[x**2 for x in range(5)]
A. [0, 1, 2, 3, 4]
B. [1, 4, 9, 16, 25]
C. [0, 1, 4, 9, 16]
D. [1, 2, 3, 4, 5]
Q.108 What is the key difference between list comprehensions and generator expressions?
A. The syntax used
B. The type of brackets used
C. List comprehensions produce lists, while generator expressions produce generators
D. Execution speed
Q.109 What is a list comprehension in Python?
A. A concise way to create lists
B. A method to iterate through lists
C. A type of Python comprehension
D. A special function for lists
Q.110 Find the mistake: try:
x = 1 / “0”
except ValueError:
print(“Type error occurred”)
A. Wrong exception type is caught
B. Should be ZeroDivisionError
C. It will raise a TypeError
D. No error
Q.111 Identify the error in this code:
try:
x = 1 / 0
except:
print(“An error occurred”)
A. Division by zero is not handled properly
B. Generic exception should not be used
C. Syntax error in try statement
D. No error
Q.112 Pseudocode:
Try to open a file, read its contents;
if file not found,
print error message
A. File contents are displayed
B. Error message is printed
C. No output
D. File is created and then read
Q.113 What will be the output of the following code?
try: x = 1 / 0 except ZeroDivisionError:
print(“Error”)
A. 0
B. 1
C. Error
D. No output
Q.114 When is the else clause in a try-except block executed?
A. Always after the try block
B. When no exceptions are raised
C. When an exception is handled
D. It is never executed
Q.115 Which exception is raised by Python when a file you try to open does not exist?
A. FileNotFoundError
B. IOError
C. OSError
D. ValueError
Q.116 In Python, what is the purpose of the try statement?
A. To test a block of code for errors
B. To execute code regardless of errors
C. To generate an error
D. To declare variables
Q.117 Find the mistake:
with open(‘data.txt’, ‘r’) as file:
data = file.readlines();
print(data[2])
A. Wrong function used
B. Error in print statement
C. Index error
D. No error
Q.118 Identify the error:
file = open(‘data.txt’, ‘r’);
data = file.read();
file.close()
A. File not closed properly
B. Incorrect mode for reading
C. No error
D. Error in file.read()
Q.119 Pseudocode:
Open ‘data.txt’, read each line, print each line
A. Prints name of the file
B. Prints contents of data.txt
C. Error
D. No output
Q.120 What is the result of this code?
f = open(‘file.txt’, ‘r’);
print(f.readline())
A. Prints entire file
B. Prints the first line of file.txt
C. Error
D. Prints ‘file.txt’
Q.121 Why is PEP 8 important in Python development?
A. It provides guidelines for error handling
B. It outlines the standard coding conventions
C. It defines the core functionality of Python
D. It lists Python’s reserved words
Q.122 What is PEP in the context of Python?
A. A Python enhancement proposal
B. A Python error protocol
C. A Python environment path
D. A Python executable program
Q.123 Identify the error in this code:
import os;
os.rmdir(‘mydir’) assuming ‘mydir’ contains files and subfolders.
A. Incorrect module imported
B. os.rmdir() cannot delete non-empty directories
C. Wrong syntax for removing directories
D. No error
Q.124 What does os.listdir(‘.’) do?
A. Lists all Python files in the current directory
B. Creates a new directory
C. Lists all files and directories in the current directory
D. Deletes the current directory
Q.125 How does the os.path.join() function benefit file path construction?
A. Increases file access speed
B. Ensures correct path format for the operating system
C. Encrypts the file path
D. Splits the file path into components
Q.126 Which function in the OS module is commonly used to change the current working directory?
A. os.change_directory()
B. os.chdir()
C. os.setcwd()
D. os.update_directory()
Q.127 What is the primary use of the OS module in Python?
A. Networking
B. Web development
C. Interacting with the operating system
D. Data analysis
Q.128 What is the key benefit of using requirements.txt in a Python project?
A. For documenting the code
B. To list all the packages and their versions used in the project
C. To improve the performance of the project
D. For version control
Q.129 Which tool is used to install Python packages?
A. git
B. virtualenv
C. pip
D. setuptools
Q.130 What is the purpose of a virtual environment in Python programming?
A. Version control
B. To isolate project-specific dependencies
C. Web development
D. Data analysis
Q.131 Identify the error in this code for reading a CSV file:
import csv;
reader = csv.reader(open(‘file.csv’, ‘wb’))
A. The file mode should be ‘rb’, not ‘wb’
B. csv.reader does not take a file object
C. The file ‘file.csv’ does not exist
D. Incorrect use of the csv module
Q.132 What does the following code do?
import json; json.loads(‘{“name”: “John”, “age”: 30}’)
A.Creates a JSON file
B. Parses a JSON string into a Python dictionary
C. Serializes a Python dictionary to JSON
D. Throws an error
Q.133 When working with Excel files in Python, which library is commonly used to read and write .xlsx files?
A. Pandas
B. Numpy
C. OpenPyXL
D. CSV
Q.134 In Python, which module is used to work with CSV files?
A. csv
B. json
C. excel
D. fileio
Q.135 What is JSON primarily used for in Python?
A. Web development
B. Data serialization and communication between different systems
C. Numeric computations
D. File compression
Q.136 Identify the issue in this regex:
re.findall(r”[A-Z+]”, “Python+C+Java”)
A. Incorrect use of escape character
B. Wrong pattern for matching uppercase letters
C. ‘+’ should not be escaped
D. No issue
Q.137 What will the following Python code return?
re.search(r”\d{3}”, “The code 123 is valid”)
A. ‘123’
B. <re.Match object; span=(9, 12), match=’123′>
C. None
D. ‘The code 123 is valid’
Q.138 What does the regular expression ^a…s$ match?
A. Any seven-letter string starting with ‘a’ and ending with ‘s’
B. Any string starting with ‘a’ and ending with ‘s’
C. Any five-letter string starting with ‘a’ and ending with ‘s’
D. Any string containing ‘a’ and ‘s’
Q.139 Which module in Python provides support for regular expressions?
A. sys
B. re
C. os
D. json
Q.140 What is a regular expression used for in Python?
A. Error handling
B. Data serialization
C. Pattern matching and text manipulation
D. Memory management
Q.141 When should you choose multiprocessing over threading in Python?
A. For I/O-bound tasks
B. For quick tasks
C. For CPU-bound tasks
D. When memory usage is a concern
Q.142 What is the main difference between threading and multiprocessing in Python?
A. Threading is faster
B. Multiprocessing uses more memory
C. Threading involves parallel execution
D. Multiprocessing involves separate memory spaces for each process
Q.143 How do generators differ from standard functions?
A. Generators can’t take arguments
B. Generators don’t return values
C. Generators yield values, maintaining state between each yield
D. Generators execute faster
Q.144 What is a generator in Python?
A. A type of collection
B. A tool for creating iterators
C. A function that returns a single value
D. A module
Q.145 How do decorators contribute to cleaner code in Python?
A. By reducing the need for global variables
B. By providing a syntax for error handling
C. By allowing code reuse and adding functionality to existing code
D. By optimizing memory usage
Q.146 What is a decorator in Python?
A. A function that modifies the functionality of another function
B. A function that creates new functions
C. A syntax for defining anonymous functions
D. A tool for debugging functions
Q.147 Identify the issue in this inheritance scenario:
class Bird(Animal):
def fly(self):
pass, class Penguin(Bird):
def fly(self):
print(“Can’t fly”)
A. Birds don’t have a ‘fly’ method by default
B. Penguins shouldn’t inherit from ‘Bird’
C. fly’ method in ‘Penguin’ contradicts ‘Bird’
D. No issue present
Q.148 Pseudocode:
Create a base class ‘Shape’, derived classes ‘Circle’, ‘Square’; Implement method ‘area’ in both
A. Error, as ‘area’ cannot be implemented in ‘Shape’
B. Circle’ and ‘Square’ can’t inherit from ‘Shape’
C. area’ method behaves differently in ‘Circle’ and ‘Square’
D. ‘Shape’ should not have an ‘area’ method
Q.149 Given a class Animal and a subclass Dog, which method demonstrates polymorphism?
A. Animal.speak() and Dog.speak() have different implementations
B. Dog has the same attributes as Animal
C. Dog uses a method from Animal without changing it
D. Animal has a method not present in Dog
Q.150 How does polymorphism enhance code reusability?
A. By allowing methods to perform different tasks based on the object
B. By using the same method in multiple classes
C. By changing the functionality of inherited methods
D. By encapsulating code in modules
