MSI Logic Circuits MCQs

38 questionsTechnical-McqsPage 3 of 5

Practice free MSI Logic Circuits multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 38 questions — no login required.

Question 19easy
The device that generates a coded output from a single active numeric input line is ________.
Question 20easy
The 74139 dual four-line demultiplexer functions as a decoder if ________.
Question 21easy
In HDL, the operation of the DEMUX is exactly described using a ________.
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Question 22easy
When an application, such as an encoder, calls for a unique response from a circuit corresponding to a combination of its input variables, the two methods that best serve this purpose are the ________ and the ________.
Question 23easy
A(n) ________ is a logic circuit that accepts a set of inputs that represents a binary number, and activates only the output that corresponds to that input number.
Question 24easy
A 1-of-8 octal decoder has eight outputs and decodes an input of ________ bit(s).
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Question 25easy
An everyday illustration of a multiplexer is ________.
Question 26easy
The binary value of the BCD number 1000 0001 (81) is ________.
Question 27easy
A decimal-to-BCD encoder has ________ data inputs.