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Department of Computer Application
Digital Electronics
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Question 1 : The decimal equiation of a number of base 8 can be found by
Option-1 :multiplying by10
Option-2 :multiplying by 8
Option-3 :deviding by 10
Option-4 :deviding by 8
Question 2 : The formula for finding r's complement is
Option-1 :r power n -N
Option-2 :r power -1-N
Option-3 :r power n-r power n-N
Option-4 :r power n-a
Question 3 : No complement is basically used to fecilitate
Option-1 :addition
Option-2 :subtruction
Option-3 :division
Option-4 :multiplication
Question 4 : In the subtruction with 2's complement ,if then carry then the carry is
Option-1 :added to the result
Option-2 :ignored
Option-3 :subtraction from the result
Option-4 :result is madenegetive
Question 5 : I's complement of 10000 is
Option-1 :1111
Option-2 :1
Option-3 :0
Option-4 :0001
Question 6 : 2's complement of 0000is
Option-1 :0001
Option-2 :1111
Option-3 :1
Option-4 :0
Question 7 : Hexa decimal nomber system is of base
Option-1 :10
Option-2 :2
Option-3 :16
Option-4 :8
Question 8 : The hexa decimal escivelent of (15)8 is
Option-1 :F
Option-2 :G
Option-3 :D
Option-4 :E
Question 9 : the octal equivalent of (15)10 is
Option-1 :A
Option-2 :F
Option-3 :16
Option-4 :17
Question 10 : (1010 decimal 110)2=( _ ) 8
Option-1 :(12.6)8
Option-2 :(13.6)8
Option-3 :(9.5)8
Option-4 :(10.9)8
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