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WorksheetsUNIT II
Total questions: 15
Worksheet time: 8mins
The output is dependent only on present input?
Combinational Circuits
Analog circuits
Flip flop
Sequential circuits
The combination of two half adders is _____________
Comparator
Half adder
Full adder
Smitt trigger
The device shown here is most likely a ________
Comparator
Multiplexer
Inverter
Demultiplexer
The gates required to build a half adder are __________
EX-OR gate and NOR gate
EX-OR gate and OR gate
EX-OR gate and AND gate
EX-NOR gate and AND gate
A full-adder has a Cin = 0. What are the sum ( S) and the carry (Cout) when A = 1 and B = 1?
S= 0, Cout = 0
S= 0, Cout = 1
S= 1, Cout = 0
S= 1, Cout = 1
The binary numbers A = 1100 and B = 1001 are applied to the inputs of a comparator.
What are the output levels?
A > B = 1, A < B = 0, A < B = 1
A > B = 0, A < B = 1, A = B = 0
A > B = 1, A < B = 0, A = B = 0
A > B = 0, A < B = 1, A = B = 1
How many data select lines are required for selecting eight inputs?
4
3
2
1
How many inputs must a full-adder have?
2
3
4
5
If the number of n selected input lines is equal to 2^m then it requires _____ select
lines
2
m
n
2n
How many select lines would be required for an 8-line-to-1-line multiplexer?
2
4
8
3
4 to 1 MUX would have ___________
a.
2 inputs
3 inputs
4 inputs
5 inputs
The two input MUX would have ____________
1 select line
2 select line
3 select line
4 select line
Which of the following is the best example of a combinational logic circuit?
Counters
Multiplexers
Flip Flops
Shift Registers
In K-map, which of the following order sequence is correct for the input values representation?
(00, 01, 10, 11)
(00, 10, 01, 11)
(00, 01, 11, 10)
(00, 10, 11, 01)
How many bits are used to perform an addition operation in Half adder (HA)?
3
2
4
6
