Class 12 Computer Science Unit Test Paper<\/p>\n
Unit Test \u2013 I ( 2021-22)<\/p>\n
Q.1\u00a0 a) Name the Python Library modules which need to be imported to invoke the following functions :- (1)<\/p>\n
i) sqrt<\/p>\n
ii) random<\/p>\n
b) Rewrite the following code in python after removing all syntax error(s). Underline each corrections done in the code. (2)<\/p>\n
<\/p>\n
250 = Number\r\nWHILE Number <=1000:\r\n If Number=>750:\r\n print Number\r\n Number =Number+100\r\n elseif:\r\n print Number * 2\r\n Number = + 50<\/pre>\nAnswer:<\/p>\n
Number =250\r\nwhile Number <=1000:\r\n if Number <=750:\r\n print (Number)\r\n Number = Number+100\r\n else:\r\n print (Number * 2)\r\n Number = + 50<\/pre>\n<\/p>\n
c) Find and write the output of the following python code : (2 x 2 = 4)
\ni)<\/p>\nM1='CoMpUTER'\r\nM2='BUgS'\r\nM3=''\r\nfor I in range (0,len(M2)+1):\r\n if M1[I]>='A' and M1<='M':\r\n M3=M3+M1[I]\r\n elif M1[I]>='N' and M1<='Z':\r\n M3=M3+M2[I]\r\n else:\r\n M3=M3+'*'\r\nprint (M3)<\/pre>\n<\/p>\n
Answer:<\/p>\n
CoMpU<\/pre>\nii)<\/p>\n
def Changer(P,Q=10):\r\n P=P\/Q\r\n Q=P%Q\r\n print (P,'#',Q)\r\n return P\r\nA=250\r\nB=25\r\nA=Changer(A,B)\r\nprint (A,\"$\",B)\r\nB=Changer(B)\r\nprint (A,\"$\",B)\r\nA=Changer(A)\r\nprint (A,'$',B)\r\n<\/pre>\n<\/p>\n
Answer:<\/p>\n
10.0 # 10.0\r\n10.0 $ 25\r\n2.5 # 2.5\r\n10.0 $ 2.5\r\n1.0 # 1.0\r\n1.0 $ 2.5<\/pre>\nd) How many times will the following for loop execute and what\u2019s the output ? (1)<\/p>\n
Numbers = [9, 18, 27, 36]\r\nfor Num in Numbers:\r\n for N in range (1, Num%8):\r\n print (N,\"#\", end=\"\")\r\nprint()<\/pre>\n<\/p>\n
Answer:<\/p>\n
1 #1 #2 #1 #2 #3 #<\/pre>\nQ. 2 Write the functions for the following :- (3 x 2 = 6)<\/p>\n
a) Swapper(Numbers) to swap the first half of the contents of a list Numbers with second half of the content of list Numbers and display the swapped values.
\nFor example:
\nNumbers=[35,67,89,23,12,45]
\nAfter swapping [23,12,45,35,67,89]<\/p>\nb) How Many(ID,Val) to count and display number of times the value Val is present in the list ID.
\nFor example:
\nID contains [45,65,78,45,23,12,45] and Val contains 45
\nThe function should display
\n45 found 3 times<\/p>\nc) Count 3 and 7 (N) to find and display the count of all those numbers which are between 1 and N, which are either divisible by 3 or by 7.
\nFor example:
\nIf the value of N is 15
\nThe sum is 7
\nAs (3,6,7,9,12,14,15 in between 1 to 15 either divisible of 3 or 7)<\/p>\n<\/p>\n
Q. 3 Answer the following :- (2 x 3=6)<\/p>\n
a) Write the names of any four data types available in Python.<\/p>\n