1.
Which of the following is not a binary number?

10101010

20202020

01010101

10101101

11111111
Solution:
Binary
number has only two digits i.e. 0 and 1
2.
Which among the following is an appropriate binary conversion for the
number 013 (which is of base 8)?

101010

11011

1011

1110

0001
Solution:
Following
are the steps to convert 013 (octal number) to binary
3.The
following image represents which logic gate?

AND

OR

NOR

NAND

NOT
4.
If ∆ represents ‘0’ and ○ represents ‘1’. What will be
the one’s complement of  ○∆∆○○∆?

011001

100110

101010

000000

111111
Solution:
○∆∆○○∆ represents
100110. For finding one’s complement we change each 1 to 0 and each
0 to 1. Hence One’s complement of 100110 will be 011001. (Note:
this is not the same question as the one asked in SBI Clerk mains.)
5.
Which of the following is a Logical Disjunction?

OR gate

AND gate

NOT gate

both(a) and (b)

All of the above
Solution:
When
two statements are combined with 'OR,' then it is a disjunction.
6.
If Ӣ represents ‘1’ and Ṉ represents ‘0’. A is the input
end of NOT logic gate and B is the only output. What will be the
output if the input is A=Ӣ?

ṈӢ

Ṉ

Ӣ

ӢṈ

ӢṈ Ӣ
7.Which
of the following symbol represents input or output in a flow chart?

a

b

c

d

e
8.
What is the range of Hexadecimal Number system?

0F

01

0Z

AZ

09
9.
If © represents ‘1’ and ∞ represents ‘0’. What will be the
one’s complement of © ∞© ∞∞©©?

0110011

1010011

0011001

0101100

1111111
10.
Convert the given Binary number to decimal: 101011
45
30
41
42
43
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