Problem Solving And Python Programming Set 9

Computer Science Engineering (CSE),

Information Technology Engineering (IT),

Electrical Engineering,

Civil Engineering,

Mechanical Engineering,

Programming Languages

Practice Mode Previous Next
On This Page

This set of Problem Solving and Python Programming Multiple Choice Questions & Answers (MCQs) focuses on Problem Solving And Python Programming Set 9

Q1 | Which of the following functions does not necessarily accept only iterables as arguments?
  • enumerate()
  • all()
  • chr()
  • max()
Answer: chr()
Explaination:
the functions enumerate(), all() and max() accept iterables as arguments whereas the function chr() throws an error on receiving an iterable as an argument. also note that the function chr() accepts only integer values.
Q2 | Which of the following functions accepts only integers as arguments?
  • ord()
  • min()
  • chr()
  • any()
Answer: chr()
Explaination:
the function chr() accepts only integers as arguments. the function ord() accepts only strings. the functions min() and max() can accept floating point as well as integer arguments.
Q3 | Suppose there is a list such that: l=[2,3,4]. If we want to print this list in reverse order, which of the following methods should be used?
  • reverse(l)
  • list(reverse[(l)])
  • reversed(l)
  • list(reversed(l))
Answer: list(reversed(l))
Explaination:
the built-in function reversed() can be used to reverse the elements of a list. this function accepts only an iterable as an argument. to print the output in the form of a list, we use: list(reversed(l)). the output will be: [4,3,2].
Q4 | )
  •   -12345.0 (5 blank spaces before the number)
  • -12345.0
  • error
  • -12345.000000000…. (infinite decimal places)
Answer: -12345.0
Explaination:
the function float() will remove all the blank spaces and convert the integer to a floating point number. hence the output will be: -12345.0.
Q5 | Which of the following functions will not result in an error when no arguments are passed to it?
  • min()
  • divmod()
  • all()
  • float()
Answer: float()
Explaination:
the built-in functions min(), max(), divmod(), ord(), any(), all() etc throw an error when no arguments are passed to them. however there are some built-in functions like float(), complex() etc which do not throw an error when no arguments are passed to them. the output of float() is 0.0.
Q6 | )
  • f
  • 0xf
  • 0xf
  • 0xf
Answer: 0xf
Answer: 0xf
Answer: 0xf
Explaination:
the function hex() is used to convert the given argument into its hexadecimal representation, in lower case. hence the output of the function hex(15) is 0xf.
Q7 | Which of the following functions does not throw an error?
  • ord()
  • ord(‘ ‘)
  • ord(”)
  • ord(“”)
Answer: ord(‘ ‘)
Explaination:
the function ord() accepts a character. hence ord(), ord(”) and ord(“”)
Q8 | , 4, 6])
  • 4
  • 3
  • error
  • 6
Answer: 4
Explaination:
the function len() returns the length of the number of elements in the iterable. therefore the output of the function shown above is 4.
Q9 | Which of the following is the use of function in python?
  • functions are reusable pieces of programs
  • functions don’t provide better modularity for your application
  • you can’t also create your own functions
  • all of the mentioned
Answer: functions are reusable pieces of programs
Explaination:
functions are reusable pieces of programs. they allow you to give a name to a block of statements, allowing you to run that block using the specified name anywhere in your program and any number of times.
Q10 | Which keyword is used for function?
  • fun
  • define
  • def
  • function
Answer: def
Explaination:
none.
Q11 | printMax(3, 4)
  • 3
  • 4
  • 4 is maximum
  • none of the mentioned
Answer: 4 is maximum
Explaination:
here, we define a function called printmax that uses two parameters called a and b. we find out the greater number using a simple if..else statement and then print the bigger number.
Q12 | print(maximum(2, 3))
  • 2
  • 3
  • the numbers are equal
  • none of the mentioned
Answer: 3
Explaination:
the maximum function returns the maximum of the parameters, in this case the numbers supplied to the function. it uses a simple if..else statement to find the greater value and then returns that value.
Q13 | Which of the following is a feature of DocString?
  • provide a convenient way of associating documentation with python modules, functions, classes, and methods
  • all functions should have a docstring
  • docstrings can be accessed by the     doc      attribute on objects
  • all of the mentioned
Answer: all of the mentioned
Explaination:
python has a nifty feature called documentation strings, usually referred to by its shorter name docstrings. docstrings
Q14 | What are the two main types of functions?
  • custom function
  • built-in function & user defined function
  • user function
  • system function
Answer: built-in function & user defined function
Explaination:
built-in functions and user defined ones. the built-in functions are part of the python language. examples are: dir(), len() or abs(). the user defined functions are functions created with the def keyword.
Q15 | Where is function defined?
  • module
  • class
  • another function
  • all of the mentioned
Answer: all of the mentioned
Explaination:
functions can be defined inside a module, a class or another function.
Q16 | What is called when a function is defined inside a class?
  • module
  • class
  • another function
  • method
Answer: method
Explaination:
none.
Q17 | Which of the following is the use of id() function in python?
  • id returns the identity of the object
  • every object doesn’t have a unique id
  • all of the mentioned
  • none of the mentioned
Answer: id returns the identity of the object
Explaination:
each object in python has a unique id. the id() function returns the object’s id.
Q18 | Which of the following refers to mathematical function?
  • sqrt
  • rhombus
  • add
  • rhombus
Answer: sqrt
Explaination:
functions that are always available for usage, functions that are contained within external modules, which must be imported and functions defined by a programmer with the def keyword.
Q19 | print x
  • 9
  • 3
  • 27
  • 30
Answer: 27
Explaination:
a function is created to do a specific task. often there is a result from such a task. the return keyword is used to return
Q20 | Python supports the creation of anonymous functions at runtime, using a construct called
  • lambda
  • pi
  • anonymous
  • none of the mentioned
Answer: lambda
Explaination:
python supports the creation of anonymous functions (i.e. functions that are not bound to a name) at runtime, using a construct called lambda. lambda functions are restricted to a single expression. they can be used wherever normal functions can be used.
Q21 | print z(8)
  • 48
  • 14
  • 64
  • none of the mentioned
Answer: 48
Explaination:
the lambda keyword creates an anonymous function. the x is a parameter, that is passed to the lambda function. the parameter is followed by a colon character.
Q22 | Does Lambda contains return statements?
  • true
  • false
Answer: false
Explaination:
lambda definition does not include a return statement. it always contains an expression which is returned. also note that we can put a lambda definition anywhere a function is expected. we don’t have to assign it to a variable at all.
Q23 | Lambda is a statement.
  • true
  • false
Answer: false
Explaination:
lambda is an anonymous function in python. hence this statement is false.
Q24 | Lambda contains block of statements.
  • true
  • false
Answer: false
Explaination:
none.
Q25 | f(2, 30, 400)
  • 432
  • 24000
  • 430
  • no output
Answer: 432
Explaination:
none.
Previous Next