Refer to CBSE Class 12 Computer Science CSV File MCQs provided below. CBSE Class 12 Computer Science MCQ questions with answers are available for download in Pdf. The MCQ Questions for Class 12 Computer Science with answers are aligned as per the latest syllabus and exam pattern suggested in Class 12 by CBSE, NCERT and KVS. Multiple Choice Questions for CSV File are an important part of exams for Class 12 Computer Science and if practiced properly can help you to improve your understanding of CSV File and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 12 Computer Science and also download more latest study material for all subjects
MCQ for Class 12 Computer Science CSV File
Class 12 Computer Science students should refer to the following multiple-choice questions with answers for CSV File in Class 12.
CSV File MCQ Questions Class 12 Computer Science with Answers
Question. Observe the following code and fill the blank in statement3
import csv
with _________ as f: #statement1
r = csv.______(f) #statement2
for row in ______: #statement3
print(_____) #statement4
a) F
b) r
c) r,f
d) None of the above
Answer : B
Question. To open a file c:\scores.csv for reading, we use _______ command.
a) infile = open(“c:\scores.csv”, “r”)
b) infile = open(“c:\\scores.csv”, “r”)
c) infile = open(file = “c:\scores.csv”, “r”)
d) infile = open(file = “c:\\scores.csv”, “r”)
Answer : B
Question. To read the entire content of the CSV file as a nested list from a file object infile, we use __________ command.
(a) infile.read()
(b) infile.reader()
(c) csv.reader(infile)
(d) infile.readlines()
Answer : C
Question. State True/False:
The CSV files only take comma as delimiter.
a) True
b) False
Answer : B
Question. Observe the following code and fill the blank in statement2
import csv
with _________ as f: #statement1
r = csv.______(f) #statement2for row in ______: #statement3
print(_____) #statement4
a) load
b) read()
c) reader()
d) readlines()
Answer : C
Question. The default delimiter character of CSV file is____.
a) : (colon)
b) \t (tab)
c) , (comma)
d) ; (semi-colon)
Answer : C
Question. The CSV files are ____ files.
a) Text
b) Binary
c) Data
d) Python
Answer : A
Question. State True/False :
(i) The csv files are Binary Files:
a) True
b) False
Answer : B
Question. Observe the following code and fill the blank in statement1
import csv
with _________ as f: #statement1
r = csv.______(f) #statement2
for row in ______: #statement3
print(_____) #statement4
a) open(“data.csv”)
b) f=open(“data.csv”)
c) Both A & B are Correct
d) Both A & B are incorrect
Answer : A
Question. The full form of CSV is
a) Comma Separated Values
b) Comma Separated Value
c) Comma Separated Variables
d) Comma Separate Values
Answer : A
Question. State True/False:
A CSV file is open in the same way as text file.
a) True
b) False
Answer : A
Question. The file mode to open a CSV file for reading as well as writing is _____.
a) a+
b) w+
c) r+
d) All the above.
Answer : C
Question. State True/False :
The separator character of csv files is called delimiter.
a) True
b) False
Answer : A
Question. The CSV files are popular because they are
a) capable of storing large amount of data
b) easier to create
c) preferred export and import format for databases and spread sheets
d) All the above
Answer : D
Question. The file mode to open a CSV file for appending as well as reading is _____.
a) a+
b) w+
c) r+
d) All the above.
Answer : A
Question. Which of the following statement(s) are true for csv files?
a) When you open a file for reading, if the file does not exist, an error occurs
b) When you open a file for writing, if the file does not exist, a new file is created
c) When you open a file for writing, if the file exists, the existing file is overwritten with the new file
d) All the above
Answer : D
Question. EOL character used in windows operating system in CSV file is
a) \r
b) \n
c) \r\n
d) \0
Answer : C
Question. Which of the following is not a valid mode to open CSV file?
a) a
b) w
c) ab
d) r
Answer : C
Question. Observe the following code and fill the blank in statement4
import csv
with _________ as f: #statement1
r = csv.______(f) #statement2
for row in ______: #statement3
print(_____) #statement4
a) r
b) row
c) f
d) csv
Answer : B
CSV file: import csv module, open / close csv file, write into a csv file using csv.writerow() and read from a csv file using csv.reader( )
Question. The file mode to open a csv file for appending as well reading is ……..
a) w
b) w+
c) a
d) a+
Answer : D
Question. The character that separates values in csv files is called the ………
a) delimit
b) delimiter
c) delimited
d) delimits
Answer : B
Question. To add data to an existing csv file, the mode of the file should be ……..
a) w
b) w+
c) a
d) a+
Answer : C
Question. Every record in a CSV file is stored in reader object in the form of a list using which method?
a) writer()
b) append()
c) reader()
d) list()
Answer : C
Question. The file mode to open a csv file for reading as well writing is ………
a) r
b) rw
c) r+
d) rb
Answer : C
Question. CSV stands for …….
a) Cursor Separated Variables
b) Comma Separated Values
c) Cursor Separated Values
d) Cursor Separated Version
Answer : B
Question. To specify a different delimiter while writing into csv file, ……. argument is used with csv.writer().
a) delimit
b) delimiter
c) delimited
d) delimits
Answer : B
Question. The default delimiter of csv file is ……………
a) comma
b) colon
c) semicolon
d) hyphen
Answer : A
Question. Which module is used for working with CSV files in Python?
a) random
b) statistics
c) csv
d) math
Answer : C
Question. To cancel the EOL translation in csv file while writing the data ………… argument is used with open().
a) newline
b) next
c) open
d) EOL
Answer : A
CASE STUDY QUESTIONS (R)
Krishna of class 12 is writing a program to read the details of Sports performance and store in the csv file “Sports.csv” delimited with a tab character. As a programmer, help him to achieve the task.
import ___________ # Line 1
f = open(“Sports.csv”,”a”)
wobj = csv.______________ (f, delimiter = „\t‟) # Line 2
wobj.writerow( [„Sport‟, „Competitions‟, „Prizes Won‟] )
ans = „y‟
i = 1
while ans == „y‟:
print(“Record :”, i)
sport = input(“Sport Name :”)
comp = int(input(“No. of competitions participated :”))
prize = int(input(“Prizes won:”))
record = ____________________ # Line 3
wobj.______________ (rec) # Line 4
i += 1
ans = input(“Do u want to continue ? (y/n) :”)
f.___________ # Line 5
Question. Name the module he should import in Line 1
a) .tcs
b) .tmp
c) .bin
d) .csv
Answer : D
Question. To create a sequence of user data in Line 3
a) [prize,comp,sport]
b) [comp,prize,sport]
c) [sport, comp, prize]
d) none of the above
Answer : C
Question. To create an object to enable to write in the csv file in Line 2
a) open
b) writer
c) file
d) read
Answer : B
Question. To write a record onto the writer object in Line 4
a) write
b) writerow
c) writeline
d) writelines
Answer : B
Deepesh works as a programmer with Delta Technologies. He has been assigned the job of generating the salary of all employees using the file “employee.csv”. He has written a program to read the CSV file “employee.csv” which will contain details of all the employees. He has written the following code. As a programmer, help him to successfully execute the given task.
import______ # Line 1
def readCsvEmp( ): # to read data from the CSV file
with ______(’employees.csv’, newline=”) as f: # Line 2
reader = csv.______ (f) # Line 3
data_list = ______(reader) # Line 4
______ (data_list) # Line 5
Question. Name the module he should import in Line 1.
a) import csv
b) csv import
c) import
d) export csv
Answer : A
Question. Fill in the blank in Line 3 to read the data from a csv file.
a) read
b) readline
c) reader
d) writer
Answer : C
Question. Write the method that he should use to open the file to read data from it.
a) read
b) open
c) close
d) append
Answer : B
Question. Fill in the blank in Line 4 with the method to convert the data read from the file into list.
a) list
b) sets
c) dictionary
d) tuple
Answer : A
Kumar is writing a program to create a CSV file “student.csv” which will contain rollno, name and age of some students. He has written the following code. As a programmer, help him to successfully execute the given task
import ________________ # Line 1
f=open(‘student.csv’,’w’,newline=””)
p=csv._________(f) # Line 2
ch=’y’
while ch==’y’:
l=[]
rollno=int(input(‘enter rollno’))
name=input(‘enter name’)
age=int(input(‘enter age’))
l.append(rollno)
l.append(name)
l.append(age)
p.___________(l) # Line 3
ch = input (‘want to continue y/n?’)
if ch==’y’:
continue
else:
break
f.__________()
f=open(‘student.csv’,’r+’)
c=list(csv.reader(f))
for i in c:
k=i[2]
if int(k)>15:
print(i)
f.close()
Question. Name the module he should import in Line 1
a) import csv
b) csv import
c) import
d) export csv
Answer : A
Question. The method which is to be used in line 3 to writes a row of data into the specified file
a) p.writerow(l)
b) p.writerows(l)
c) p.writer()
d) p.writerow(l)
Answer : D
Question. which function is used in Line 2 to create a writer object
a) p=tsv.writer(f)
b) p=psv.writer(f)
c) p=csv.writer(f)
d) p=dsv.writer(f)
Answer : C
Question. Fill in the blank in Line 4 to close the file.
a) f.close()
b) f.open()
c) close.f()
d) f.read()
Answer : A
Legend sports wanted to store the number of prizes for each sport as a SPORTS.CSV file. As a programmer help them to complete the task successfully.
import _______________ #Line 1
fh=___________________ # Line 2
swriter = ______________(fh) #Line 3
ans=‟y‟
i=1
while ans==‟y‟:
print(“Record”,i)
sport=input(“Sport name”)
prizes=int(input(“Enter prizes won”))
__________ # Line 4
i=i+1
ans=input(“Want to enter records”)
fh._________________#Line 5
Question. Name the module to be imported in Line 1.
a) .tsv
b) .csv
c) .py
d) .bin
Answer : B
Question. Write the correct statement to write the data into file in line 3.
a) writerows( )
b) writerow( )
c) writer( )
d) swriter = csv.csvwriter(fh)
Answer : D
Question. Fill in line 2 to open the CSV file.
a) fh = open(“sports.csv”,”w”)
b) fh=read(“sports.csv”,”w”)
c) fh = file(“sports.csv”,”w”)
d) fh = append(“sports.csv”,”w”)
Answer : A
Question. Write the statement to write the records given as input from user in line 4.
a) swriter([sport,prizes])
b) swriter.writrrow([sport,prizes])
c) swriter_writrrow([sport,prizes])
d) swriterwritrrow([sport,prizes])
Answer : B
Puneeta is storing the data of her gift store in a csv file named gift.csv which will store Gift_code and Gift_name of items of her gift store. She has written the following code .As a programmer help her to successfully execute her program in python:
import ___________ # Line 1
def writeFile(Gift_code,Gift_name):
F=open(“gift.csv”,‟___‟) #Line 2
FW=csv.________(F) #Line 3
FW.writerow([Gift_code,Gift_name)
F.close()
#CSV file for reading
def readFile():
with ________(„gift.csv‟,‟r‟) as newF #Line 4
FR=csv.reader(newF)
for row in FR:if row[0]==101:
print(row)
newF.close()
writeFile(101,”Photoframe”)
writeFile(102,”Soft Toys”)
writeFile(103,”Flower Pot”)
readFile() #Line 5
Question. Name the module she should import in line 1.
a) .tmp
b) .bin
c) .tsc
d) .csv
Answer : D
Question. Fill in the blanks in Line 3 to write data to csv file gift.csv
a) close()
b) open()
c) writer()
d) append()
Answer : C
Question. In which mode Puneeta should open the file to add data in it?
a) “a”
b) “ab”
c) “r”
d) “w”
Answer : A
Question. Fill in the blank in Line 4 to open the csv file from the disk
a) close
b) open
c) write
d) read
Answer : B
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CBSE Class 12 Computer Science CSV File MCQs
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