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- 1. Multiple Choice
A multiplexer has
one input and one output
one input and many output
many input and one output
many inputs and many outputs
- 2. Multiple Choice
A multiplexer can be used as
Counter
Shift register
Combinational circuit
7-segment display
- 3. Multiple Choice
A multiplexer with 3-bit data select inputs is a
4:1 multiplexer
8:1multiplexer
16:1multiplexer
32:1multiplexer
- 4. Multiple Choice
A demultiplexer has
One data input and two or more than two data outputs
One data output and two or more than two data inputs
One data output and a number of data input and a number of select inputs
One data output and a number of select inputs
- 5. Multiple Choice
A 4 x 1 MUX is used to implement a 3-input Boolean function as shown in figure. The Boolean function F (A, B, C) implemented is
F (A, B, C) = Σ (1, 2, 4, 6)
F (A, B, C) = Σ (2, 4, 5, 6)
F (A, B, C) = Σ (1, 2, 6)
F (A, B, C) = Σ (1, 5, 6)
- 6. Multiple Choice
Two input multiplexer would have
1 select line
2 select lines
4 select lines
3 select lines
- 7. Multiple Choice
A multiplexer is also called as a
Coder
parallel adder
Data selector
NOR gate
- 8. Multiple Choice
Integrated circuit number 74151 has
8x1 multiplexers
3x8 decoder
2x1 mux
4bit counter
- 9. Multiple Choice
which of the following circuits can be used as parallel to serial converter?
Multiplexer
Demultiplexer
Digital counter
Decoder
- 10. Open Ended
For the multiplexer above, determine the output Y for the following input states:
D0=1, D1=0, D2=0, D3=1, S0=0, S1=1
- 11. Multiple Choice
The device shown here is most likely a ________
Comparator
Demultiplexer
Inverter
Multiplexer
- 12. Multiple Choice
For the device shown here, assume the D input is LOW, both S inputs are LOW and the input is LOW. What is the status of the Y’ outputs?
All are HIGH
All are LOW
All but Y0 are LOW
All but Y0 are HIGH
- 13. Multiple Choice
which of the following circuits can be used as parallel to serial converter?
Multiplexer
Demultiplexer
Digital counter
Decoder
- 14. Multiple Choice
Why is a demultiplexer called a data distributor?
The input will be distributed to one of the outputs
One of the inputs will be selected for the output
The output will be distributed to one of the inputs
Single input gives single output
- 15. Multiple Choice
In 1-to-4 demultiplexer, how many select lines are required?
2
3
4
5
- 16. Multiple Choice
In a multiplexer the output depends on its ____________
Data Inputs
Select Inputs
Select Outputs
Data Output
- 17. Multiple Choice
How many select lines are required for a 1-to-8 demultiplexer?
2
3
4
5
- 18. Multiple Choice
What is the status of the inputs S0, S1, S1, S2 of the 74151 eight line multiplexer in order for the output Y to be a copy of input I5?
S0=0, S1=1, S2=0
S0=0, S1=0, S2=1
S0=1, S1=1, S2=0
S0=1, S1=0, S2=1
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