WorksheetsCombinational Circuit
Total questions: 10
Worksheet time: 5mins
How many EXOR gates and AND gates are required to design a half adder sum circuit?
2 and 1 respectively
3 and 2 respectively
1 and 1 respectively
1 and 2 respectively
How many EXOR gates are required for FULL adder circuit?
1
2
3
4
If the inputs to a full adder are A=1, B=0, CIN=1 what will be the logic states on the outputs S and COUT?
S = 0, COUT= 0
S = 0, COUT= 1
S = 1, COUT= 0
S = 1, COUT= 1
Combinational circuit has
memory and depend only on the present input.
no memory and depend only on the present input.
no memory and depends on past and future inputs.
memory and does not depend on present input.
How many EXOR gates are required to design a FULL subtractor?
1
2
3
4
The simplest equation which implements the K-map shown below is:
X = AC + B
X= AB'
X=ABC'+ABC+AB'C
X=AB+A'B
Which of the following logic expressions represents the logic diagram shown?
X=AB'+A'B
X=(AB)'+AB
X=(AB)'+A'B'
X=A'B'+AB
The implementation of simplified sum-of-products expressions may be easily implemented into actual logic circuits using all universal ________ gates with little or no increase in circuit complexity. (Select the response for the blank space that will BEST make the statement true.)
AND
NAND
NOR
OR/AND
Which of the following statements accurately represents the two BEST methods of logic circuit simplification?
Boolean algebra and Karnaugh mapping
Karnaugh mapping and circuit waveform analysis
Actual circuit trial and error evaluation and waveform analysis
Boolean algebra and actual circuit trial and error evaluation
Which of the following combinations cannot be combined into K-map groups?
Corners in the same row
Corners in the same column
Diagonal corners
Overlapping combinations
