Which of the number is not a
representative of hexadecimal system
Select correct option :
“ 1234 ”
“ ABCD”
“ 1001 ” correct
“ DEFH”
High level Noise Margins ( VNH ) of
CMOS 5 volt series circuits is
_____________
Select correct option :
0 . 3 V
0 . 5 V
0 . 9 V correct
3 . 3 V
To get the answer “ 1 ” in Boolean
addition of three variables , ________
Select correct option :
All three variables must be 1
One of the variables must be 1 correct
All three variables must be 0
Any two variables must be 1
The 3 - variable Karnaugh Map ( K- Map )
has _______ cells for min or max terms
Select correct option :
4
8 correct
12
16
________ is invalid number of cells in a
single group formed by the adjacent
cells in K - map
Select correct option :
2 correct
8
12
16
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 _____
Select correct option :
Zero
One
Undefined
No output as input is invalid
The Binary number 1011 .101 has an
Integer part represented by _____ and
a fraction part ____ separated by a
decimal point .
Select correct option :
1011, 101 correct
101, 1011
101, 1101
10111, 11
1011+ 101 = ______
Select correct option :
10000 correct
00001
10011
11001
Adding two octal numbers “ 36 ” and
“ 71 ” result in ________
Select correct option :
213
123
127 correct
345
The first Least Most digit in decimal
number system has
Select correct option :
Has position 0 and weight equal to 1
not sure
Has position 1 and weight equal to 0
Has position 1 and weight equal to 10
Has position 0 and weight equal to 10
Sum term ( Max term ) is implemented
using ________ gates
Select correct option :
OR correct
AND
NOT
OR - AND
The OR Gate performs a Boolean
_______ function
Select correct option :
Addition correct
Subtraction
Multiplication
Division
Adding two octal numbers “ 36 ” and
“ 71 ” result in ________
Select correct option :
213
123
127 correct
345
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 ________
Select correct option :
24 .582
2 . 4582
24582 not sure
0 . 24582
NOR Gate can be used to perform the
operation of AND, OR and NOT Gate
Select correct option :
TRUE correct
FALSE
The three fundamental gates are
___________
Select correct option :
AND, NAND, XOR
OR , AND, NAND
NOT, NOR , XOR
NOT, OR , AND correct
A SOP expression having a domain of 3
variables will have a truth table having
____ combinations of inputs and
corresponding output values .
Select correct option :
2
4
8 correct
16
The 4 - variable K - Map has ________
rows and ___________ columns of cells .
Select correct option :
2 , 2
2 , 4
4 , 2
4 , 4 correct
NAND gate is form by connecting
_________
Select correct option :
AND Gate and then NOT Gate correct
NOT Gate and then AND Gate
AND Gate and then OR Gate
OR Gate and then AND Gate
