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Dlc ( Digital Logic Circuits )
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Q.1
Why latches are called a memory devices?
it has capability to stare 8 bits of data
it has internal memory of 4 bit
it can store one bit of data
it can store infinite amount of data
Q.2
There are _____ Minterms for 3 variables (a, b, c).
0
2
8
1
Q.3
The word demultiplex means
one into many
many into one
distributor
one into many as well as distributor
Q.4
The expression Y=AB+BC+AC shows the _______ operation.
ex-or
sop
pos
nor
Q.5
Metal links are made up of ___________
polycrystalline
magnesium sulphide
nichrome
silicon dioxide
Q.6
Wat is the gray code for this binary code: 1010?
1121
1211
1111
1011
Q.7
What is the Length of ASCII
8 bit
12 bit
7 bit
4 bit
Q.8
Convert 75.into hexadecimal
4B.A
2B.A
41B.A
14B.A
Q.9
Full form of ASCII
American standard code for information interchange
African super code for innovation interchange
American super code for innovation interchange
African standard code for information interchange
Q.10
In a clocked SR latch the outputs of the latch change when:
Clock is 0
Clock is 1
Does not depend on clock
None of the above
Q.11
Decoder is a
combinational circuit
sequential circuit
complex circuit
gate
Q.12
A collection of flip-flops used to move data(bits) within a register is a _______.
Shift Register
Bit Register
Flip Register
Q.13
A "universal" basic memory device used in banks called registers
J-K Flip-Flop
D-Type Flip-Flop
S-R Flip-Flop
Q.14
What is a Flip-Flop?
a 2 state device which offers basic memory for sequential logic operations, heavily used in banks called "registers"
a logic device used to invert a value
a storage device that works with non binary numbers
Q.15
A flip flop can store
1 bit
2 bits
4 bits
8 bits
Q.16
Which device has one input and many outputs
flip flop
multiplexer
demultiplexer
counter
Q.17
Which of the following circuits can be used as parallel to serial converter?
Multiplexer
Demultiplexer
Digital counter
Decoder
Q.18
An AND gate has 7 inputs.How many input words are in its truth table?
16
32
64
128
Q.19
OR-AND realisation is equivalent to
SOP
POS
K-map
None of these
Q.20
AND-OR realisation is equivalent to
SOP
POS
K-map
None of these
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