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Important Digital Logic and Design Short Questions

Chapter: 11
Question 1:
What does a 0 in a K-map represent for a Standard POS expression?
Answer: A 0 in a K-map for a Standard POS expression represents a maxterm that is present in the expression.
Chapter: 11
Question 2:
How are 1s filled in a K-map for a Standard POS expression?
Answer: 1s are filled in the cells of the K-map that do not correspond to the maxterms of the expression.
Chapter: 11
Question 3:
How can a Standard POS expression with maxterms 1, 2, 5, and 7 be represented on a 3-variable K-map?
Answer: It can be represented by placing 0s at maxterm locations 1, 2, 5, and 7 and 1s at the remaining cells.
Chapter: 11
Question 4:
What is the simplification result of a POS expression having 3 maxterms (0, 4, 3) on a 3-variable K-map?
Answer: The simplified POS expression is (B + C).(A + B + C).
Chapter: 11
Question 5:
What is the simplification of a POS expression with 4 maxterms (0, 5, 6, 7) on a 3-variable K-map?
Answer: The simplified POS expression is (A + B + C).(A + C).(A + B).
Chapter: 11
Question 6:
How do groups of 0s in a K-map for POS expressions differ from groups of 1s in SOP expressions?
Answer: Groups of 0s in POS expressions are used to form sum terms, while groups of 1s in SOP expressions are used to form product terms.
Chapter: 11
Question 7:
What is the result of mapping a POS expression with 8 maxterms on a 4-variable K-map?
Answer: The simplified POS expression is (A + C).(C + D).(B + C + D).
Chapter: 11
Question 8:
How can you convert between POS and SOP expressions using a K-map?
Answer: Convert between POS and SOP by grouping 1s for SOP and 0s for POS on the K-map.
Chapter: 11
Question 9:
What does a group of 2 cells in a 5-variable K-map represent?
Answer: A group of 2 cells in a 5-variable K-map represents a product term involving 4 variables.
Chapter: 11
Question 10:
How are Karnaugh maps used for simplifying expressions with multiple outputs?
Answer: Karnaugh maps are used to simplify expressions by creating individual K-maps for each output and combining the results.