Sample Question Paper:
M3-R5: Programming and Problem Solving Through Python
PART ONE (Answer all the questions)
1. Each question below gives a multiple choice of answers. Choose the most appropriate one and enter in the “tear-off” answer sheet attached to the question paper, following instructions therein. (1x10)
(a) Algorithm
(b) Flowchart
(c) Pseudocode
(d) All of these
1.2_______ is a procedure or step by step process for solving a problem.
(a) Algorithm
(b) Flowchart
(c) Pseudocode
(d) All of these
1.3 The ______ symbol is used at the beginning of a flow chart.
(a) Circle
(b) Rectangle
(c) Diamond
(d) None of these
1.4 What will be the output of the following code: Print type(type(int))
(a) type ‘int’
(b) type ‘typpe’
(c) error
(d) 0
1.5 what is the output of the following code: L=[‘a’,’b’,’c’,’d’] Print “”.join[l]
(a) Error
(b) None
(c) abcd
(d) [‘a’,’b’,’c’,’d’]
1.6 np.eye() is used for creating:
(a) Identity Matrix
(b) Upper triangle Matrix
(c) Lower Triangle Matrix
(d) None of the above
1.7 What is the output of the code print(9//2)
(a) 4.5
(b) 4.0
(c) 4
(d) Error
1.8 What is the output of the following program : i = 0 while i< 3: print i i++ print i+1
(a) 0 2 1 3 2 4
(b) 0 1 2 3 4 5
(c) Infinite loop
(d) 0 1 2 3
1.9Debugging is used to:
(a) Find errors from the program
(b) Check the functionality of the program
(c) Black box testing
(d) All of the above
1.10 The function which reads one line from standards input and returns it as a string (removing the trailing newline)
(a) raw_input
(b) input
(c) eval
(d) accept
2. Each statement below is either TRUE or FALSE. Choose the most appropriate one and ENTER in the “tear-off” sheet attached to the question paper, following instructions therein. (1x10)
2.1 Numpy is a tool for data visualization.
2.2 The break statement is used for exiting from the loop to the statement following the close of the loop.
2.3 The scope rule in Python are summarized as ELGB (enclosed, local, global, built-in).
2.4 Strings in Python are mutable.
2.5 The symbol used for both input and output is
2.6 if list1=[10,20,30], then operation list1*2 returns [20,40,60].
2.7 The symbol used for conditional statement in a flow chart is .
2.8 You cannot obtain a value in a dictionary using a key for a single element.
2.9 It is mandatory to have __main__ function in python.
2.10 Python allows you to assign a single value to multiple variables simultaneously.
3. Match words and phrases in column X with the closest related meaning/ word(s)/phrase(s) in column Y. Enter your selection in the “tear-off” answer sheet attached to the question paper, following instructions therein. (1x10)
4. Each statement below has a blank space to fit one of the word(s) or phrase(s) in the list below. Enter your choice in the “tear-off” answer sheet attached to the question paper, following instructions therein. (1x10)
A *
B Range
C pass
D Get
E Input
F random
G @
H eval
I list
J Convert
K int
L { }
M Continue
N ( )
O [ ]
P Module
Q Dictionary
4.1 The __________ command is used to take input from the keyboard.
4.2 The __________function is used to convert a string value to int.
4.3 The function used to evaluate the value of a string is _________
4.4 The _____________ function takes the parameter filename and the mode during file processing. .
4.5 List structure in python where elements are stored in ___________ parenthesis.
4.6 The __________ statement lets the program go through the piece of code without performing any action.
4.7 _________ operator repeats a list for the given number of items.
4.8 _________ is a set of functions you want to include in your application.
4.9 The structure having keys and values is called ____________.
4.10 The _________ function generates a sequence of numbers from 1 to n.
PART TWO (Answer any FOUR questions)
5.
a). Make a flow chart to input any number and find its factorial and print.
b). Explain the role of linker and loader in compilation.
c). Write a flowchart that finds the sum of series:
s=1+x/1!+2x/2!+3x/3!+ upto n terms d. What is a NumPy array. How they are different from lists?
(5+2+5+3 )
6.
a). Write a recursive function to find the sum of digits of a number.
b). Write a program that takes a sentence as input from the user and returns the frequency of each letter .Use a variable of dictionary type to maintain the count.
c). Program to check whether a string is palindrome or not.
(5+5+5)
7
a). Take an array of 2 rows and three columns, populate it and find the transpose.
b). Explain the following with example:
1. LEGB rule
2. Seek() function
3. Tell()
4. String slicing
5. List comprehension
(5+10)
8
a). Write a function that takes data to be stored in the file f1 as interactive input till user responds with nothing as input. Each character taken as input rom the user must be capitalized and stored in file f1.
b). Write a function that reads the contents of the file myfile.txt and counts the number of alphabets, lowercase letters, uppercase letters, digits and no of words.
c). Take two NumPy arrays having two dimensions. Concatenate the arrays on axis 1.
( 6+6+3)
9
a). Write a recursive function to count the sum of digits of a number
b). Write a program that takes m as an input parameter and creates a list of m lists such that xth list contains first three multiples of x.
c). Store the monthly earnings of a year of a store splitting up the earnings by quarter into a list of lists. Retrieve the earnings of every month in a loop and display the quarter with maximum earnings.
(5+5+5)
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