Learn Digital Electronics Multiple Choice Questions and Answers are available for Electrical Engineering students to clear GATE exams.
1. Each term in the standard POS form is called a
A) maxterm
B) minterm
C) literal
D) don’t care
2. The NOR-NOR realization is equivalent to
A) OR-NOT realization
B) NOT-AND realization
C) AND-OR realization
D) OR-AND realization
3. The main criterion in the design of a digital circuit is the reduction of
A) volume
B) cost
C) weight
D) size
4. Logic circuits are
A) analog circuits
B) hybrid circuits
C) none of the answers
D) digital circuits
5. The NAND-NAND realization is equivalent to
A) AND-NOT realization
B) NOT-OR realization
C) OR-AND realization
D) AND-OR realization
6. In K-map simplification, a group of four adjacent 1s leads to a term with
A) one literal less than the total number of variables
B) four literals less than the total number of variables
C) three literals less than the total number of variables
D) two literals less than the total number of variables
7. The voltage levels for the negative logic system
A) must necessarily be positive
B) may be negative or positive
C) must necessarily be negative
D) must necessarily be 0 V and –5 V
8. The number of cells in a 6 variable K-map is
A) 36
B) 64
C) 6
D) 12
9. AND-OR realization of a combinational circuit is equivalent to
A) NOR-NAND realization
B) NOR-NOR realization
C) NAND-NAND realization
D) NAND-NOR realization
10. Switching circuits are
A) none of the answers
B) analog circuits
C) digital circuits
D) hybrid circuits
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Easy question