Digital Electronics Objective Questions – Set 6

An 8-square eliminates

The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

The voltage levels for positive logic system

The voltage levels for negative logic system

The terms which cannot be combined further in the tabular method are called

The devices commonly used for making digital circuits are

Each term in the standard SOP form is called a

Logic circuits are

In simplification of a Boolean function of n variables, a group of 2^m adjacent 1s leads to a term with

For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

The number of cells in a 6 variable K-map is

An n variable K-map can have

The code used for labeling the cells of a K-map is

The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

OR-AND realization of a combinational circuit is equivalent to

The NOR-NOR realization is equivalent to

The implicants which will definitely occur in the final expression are called

The NAND-NAND realization is equivalent to

An 8-square is called

Minimization of logical expressions while designing digital systems helps in reducing

The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

An n variable K-map can have

A 16-square eliminates

In K-map simplification, a group of four adjacent 1s leads to a term with

The main criterion in the design of a digital circuit is reduction of

Switching circuits are

The binary number designations of the rows and columns of the K-map are in

Each term in the standard POS form is called a

AND-OR realization of a combinational circuit is equivalent to

The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to positive logic system