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WorksheetsDPSD QUIZ 1
Total questions: 20
Worksheet time: 14mins
Which among the following is a combinational circuit
Flip Flop
Latch
Counter
Encoder
Full Adder can be formed by cascading two half adders
True
False
When performing X-Y in boolean algebra, borrow is generated when X is less than Y
True
False
Cannot be determined
The combinational circuit used for routing the input value to the output line based on the select signal combination
Multiplexer
Demultiplexer
Encoder
Decoder
Which among the following is the BCD representation of the decimal number 12
1100
0001 0010
1101
0001 0011
Which among the following is the BCD representation of the decimal number 12
1100
0001 0010
1101
0001 0011
How many AND gates are required to realize Y = CD + EF + G?
4
5
3
2
State the name of this logic gate....
AND
NOT
NOR
OR
One input of a NAND gate is low (logic level 0) and the other input is high (logic level 1).
The output state is?
1
0
symbol for a NAND gate is....
Which truth table is this?
XOR
NOR
NAND
NOT
Which are the UNIVERSAL GATES?
XOR Gate & NOT Gate
AND Gate & OR Gate
NAND Gate & NOR Gate
All of the above
The NOR Gate is OR Gate followed by ...............
OR Gate
NOT Gate
AND Gate
None of the above
NAND Gate is called a universal logic element, because
It is used by everybody
Any logic function can be realised by NAND Gate alone
Many digital computers use NAND Gate
All the minimisation techniques are applicable to optimum NAND Gate realisation
2) A __________ gate gives the output as 1 only if all the inputs signals are 1.
a) AND
b) OR
c) EXOR
d) NOR
3) The boolean expression of an OR gate is _______
a) A.B
b) A’B+AB’
c) A+B
d) A’B’
2’s complement of binary number 0101 is
1011
1111
1101
1110
What is the BCD representation of the binary code " 01101"
10011
10010
11100
11001
The circuit of the given figure realizes the function …………
Y = (A'+B')C + (DE)'
Y = A'+B'+C'+D'+E'
AB+C+D'E
AB+C(D+E')
What is the expression for the SUM output of a full adder?
A⊕B⊕Cin
A⊕B
A⊕Cin
(A+B)⊕Cin
