# Digital Electronics

## Logic gates MCQ SET-3

Logic Gates MCQ Set-3 Question with Answer 1. A gate is enabled when its enable input is at logic 0. The gate is (A) NOR (B) AND (C) NAND (D) None of these Show Answer Answer : (A) NOR 2. A gate is inhibited when its inhibit input is at logic 1. The gate is …

## Logic gates MCQ SET-2

Logic Gates MCQ Set-2 Question with Answer 1. The output of a NOR gate is high (A) Only when all the inputss are low (B) Only when all the inputs are high (C) Only when at least one input is high (D) Only when at least one input is low Show Answer Answer : (A) …

## Logic gates MCQ SET-1

Logic Gates MCQ Set-1 Question with Answer 1. A combinational circuit can be designed using only (A) AND Gates (B) OR Gates (C) OR and X-NOR gates (D) NOR gates Show Answer Answer : (D) NOR gates 2. A combinational circuit can be designed using only (A) AND gates (B) OR gates (C) OR and …

## Binary Codes MCQ SET-2

Binary Codes MCQ SET-2 Question with Answer 1. For 2-bit error detection, the minimum distance of that code must be (A) 2 (B) 3 (C) 4 (D) 6 Show Answer Answer : (B) 3 2. The 7-bit Hamming code is used to transmit (A) 3 data bits (B) 4 data bits (C) 7 data bits …

## Binary Codes MCQ SET-1

Binary Codes MCQ SET-1 Question with Answer 1. The code used in digital systems to represent decimal digits, letter, and other special characters such as +,-,.,*, etc. is (A) Hexadecimal (B) Octal (C) Natural BCD (D) ASCII Show Answer Answer : (D) ASCII 2. The codes in which each successive corde word differs from the …

## NUMBER SYSTEM MCQ SET-2

Number System MCQ SET-2 Question With Answer 1. How many 1s are present in the binary representation of 15*256+5*16+3? (A) 8 (B) 9 (C) 10 (D) 11 Show Answer Answer : (A) 8 2. If √61 = 7, the base of the number system is (A) 7 (B) 8 (C) 9 (D) 6 Show Answer …

## Number System MCQ SET-1

Number System MCQ SET-1 Question With Answer 1. Knowledge of binary number system is required for the designers of computers and other digital systems because (A) It is easy to learn binary number system (B) It is easy to learn Boolean algebra (C) It is easy to use binary codes (D) The devices used in …

## Basic Digital Electronics MCQ

Basic Digital Electronics MCQ Question and Answer 1. Logic Circuits are (A) Analog Circuits (B) Digital Circuits (C) Hybrid Circuits (D) None of These Show Answer Answer : B (Digital circuits) 2. Switching Circuits are (A) Analog Circuits (B) Digital Circuits (C) Hybrid Circuits (D) None of These Show Answer Answer : B (Digital Circuits) …

## What is Intel 8085 Microprocessor

What is Microprocessor ? Microprocessor is a programmable, multipurpose, clock driven electronics device. It takes some input and process it according to present program and give a suitable output. Sometimes Microprocessor is also called CPU(Central Processing Unit). Microprocessor consists of an ALU, register array, and a control unit. ALU performs arithmetical and logical operations on …

## DEM MCQ 2018

Digital Electronics & Microprocessor (DEM MCQ) Multiple Choice Questions and Answers 1. Truth table is used to express : A) Boolean expression B) Boolean map C) Boolean matrix D) Boolean addition Show Answer Answer : A Explanation : None 2. 1’s complement of 11001010 is given by : A) 11001011 B) 11001001 C) 00110101 D) …