Question # 1
Sum term ( Max term ) is implemented
using _ _ _ _ _ _ _ _ gates
OR
AND,
NOT,
OR - AND
Question # 2
Excess - 8 code assigns _ _ _ _ _ _ _ to “ -
8 ”
1110,
1100,
1000,
0000
Question # 3
The maximum value , represented by a
single hexadecimal digit is _ _ _ _ _
E
F
G
H
Question # 4
The values that exceed the specified
range can not be correctly represented
and are considered as _ _ _ _ _ _ _ _
Overflow,
Carry,
Parity ,
Sign value
Question # 5
TTL based devices work with a dc
supply of _ _ _ _ Volts
+ 10 ,
+ 5
+ 3 ,
3 . 3
Question # 6
Caveman number system is Base _ _ _ _ _
_ number system
2
5
10
16
Question # 7
In Caveman number system the value
“ 2 ” is represented by symbol _ _ _ _ _ _ _
_
"!"
"^"
"&"
">"
Question # 8
If we multiply “ 723 ” and “ 34 ” by
representing them in floating point
notation i .e . by first , converting them
in floating point representation and
then multiplying them, the value of
mantissa of result will be _ _ _ _ _ _ _ _
24 .582 ,
2 . 4582,
24582,
0 . 24582
Question # 9
The output of the expression F= A .B .C
will be Logic _ _ _ _ _ _ _ _ when A = 1 , B = 0 ,
C= 1 .
Undefined
One
Zero
No Output as input is invalid.
Question # 10
The Extended ASCII Code (American
Standard Code for Information
Interchange ) is a _ _ _ _ _ code
2 - bit,
7 bit ,
8 bit ,
16 bit
Question # 11
Which of the number is not a
representative of hexadecimal system
1234
ABCD
1001
DEFH
Question # 12
The decimal “ 10 ” will have an octal
equivalent _ _ _ _ _ _ _ _
9
10
11
12
Question # 13
In 32 - bit Single - Precision Floating
Point format representation the range
of exponent value is from _ _ _ _ _ _ _ _ to
_ _ _ _ _ _ _ _
+ 127 to - 126
+ 255 to – 254
+ 128 to - 127
+ 256 to - 255
Question # 14
The hexadecimal value “ FD” is
equivalent to binary value _ _ _ _ _ _ _ _ _ _
_ _
11011111
11111101
11001110
00010111
Question # 15
The OR Gate performs a Boolean _ _ _ _
_ _ _ function
Addition
Subtraction
Multiplication
Division
Question # 16
_ _ _ _ _ _ _ _ _ is a single input gate
NOT
The first Least Most digit in decimal
number system has
Has position 0 and weight equal to 1
Has position 1 and weight equal to 0
Has position 1 and weight equal to 10
Has position 0 and weight equal to 10
Question # 17
Suppose we want to transmit the data
“ 10001101 ” , and an “ Odd - Parity ” bit
scheme is used to detect errors, the
parity bit added to this data will be _ _
_ _
“ 0 ” ,
“ 1 ” ,
Both “ 0 ” and “ 1 ” can be used
Parity bit is not needed in this case .
Question # 18
The 4 - bit 2 ’ s complement
representation of “ - 7 ” is _ _ _ _ _ _ _ _ _ _
_ _ _
0111,
1111,
1001,
0110
Question # 19
_ _ _ _ _ _ _ _ is invalid number of cells in
a single group formed by the adjacent
cells in K - map
2
8
12
16
Question # 20
The decimal “ 10 ” will have an octal
equivalent _ _ _ _ _ _ _ _
9
10
11
12
Question # 21
The cell marked 6 in 4 - variable K - Map
represent minterm 6 or the maxterm 6
having the following binary value of
variables A , B , C and D .
A= 1 , B = 1 , C = 0 , D = 0
A= 0 , B = 1 , C = 1 , D = 0
A= 0 , B = 0 , C = 1 , D = 1 (not confirm)
A= 1 , B = 0 , C = 0 , D = 1
Question # 22
The output of an XOR gate is zero (0 )
when _ _ _ _ _ _ _ _ _ _ I ) All the inputs are
zero II ) Any of the inputs is zero III)
Any of the inputs is one IV) All the
inputs are one
I Only
IV Only
I and IV only
II and III only
Question # 23
_ _ _ _ _ _ _ _ _ is the example of
Commutative Law for Multiplication
AB = BA
A+ B = B+ A
AB + C = A + BC
A( B + C ) = B (A + C )
Question # 24
The 4 - variable K - Map has _ _ _ _ _ _ _ _
rows and _ _ _ _ _ _ _ _ _ _ _ columns of
cells.
2 , 2
2 , 4
4 , 2
4 , 4
Question # 25
A standard SOP form has _ _ _ _ _ _ _ _ _ _
terms that have all the variables in the
domain of the expression.
Sum
Product
Max
Composite
Question # 26
Decimal number system is Base _ _ _ _ _ _
number system
10
Question # 27
1011+ 101 = _ _ _ _ _ _
10000
00001
10011
11001
Question # 28
A standard POS form has _ _ _ _ _ _ _ _ _ _
terms that have all the variables in the
domain of the expression
sum
product
min
composite
Question # 29
A. (B + C ) = A .B + A. C is the expression
of _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Demorgan ’ s Law
Commutative Law
Distributive Law
Associative Law
Question # 30
NOR Gate can be used to perform the
operation of AND, OR and NOT Gate
True
False
Question # 31
A certain number is represented in 15 -
digit decimal number format as
“ 364538761287354” , the exponent of
the number is _ _ _ _ _ _ _ _ _ _
36
64
35
54
Question # 32
Consider A= 1 ,B = 0 , C= 1 . A, B and C
represent the input of three bit NAND
gate the output of the NAND gate will
be _ _ _ _ _
0
1
undefine
Question # 33
1011 – 101 = _ _ _ _ _ _ _ _
1100
0110
0011
0110
Question # 34
A + B = B + A is _ _ _ _ _ _ _ _ _ _
Demorgan ’ s Law
Distributive
Commutative
asssociative
Question # 35
The range of Excess - 8 code is from _ _
_ _ _ _ to _ _ _ _ _ _
+ 7 to - 8
+ 8 to - 7
+ 9 to - 8
- 9 to + 8
Question # 36
Don’ t care conditions are marked as _ _
_ _ _ _ _ _ _ _ _ in the output column of
the function table
X
Question # 37
The decimal value “ 20 ” is equivalent to
binary value _ _ _ _ _ _ _ _ _ _
10011
11001
00101
10100
Question # 38
1011 – 101 = _ _ _ _ _ _ _ _
1100
0110
0011
1001
Question # 39
The ANSI /IEEE Standard 754 defines
a _ _ _ _ _ _ _ _ _ _ Single - Precision Floating
Point format for binary numbers .
8 - bit
16 - bit
32 - bit
64 - bit
Question # 40
The Gray code is different from the
unsigned binary code because _ _ _ _ _ _ _
_ _ _
Successive values of Gray code differ
by only one bit
Gray Code is positional code
Gray Code does not support negative
values
Gray Code ranges from “ 0 ” to “ 9 ”
