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Code Converters and Multiplexers MCQs

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Practice free Code Converters and Multiplexers 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 31 questions — no login required.

Question 1easy

How many outputs are on a BCD decoder?

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Question 2easy

Use the weighting factors to convert the following BCD numbers to binary. 0101 0011 0010 0110 1000

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Question 3easy

Which digital system translates coded characters into a more useful form?

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Question 4easy

From the following list of input conditions, determine the state of the five output leads on a 74148 octal-to-binary encoder. I0 = 1 I3 = 1 I6 = 1 I1 = 1 I4 = 0 I7 = 1 I2 = 1 I5 = 1 EI = 0

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Question 5easy

What is the function of an enable input on a multiplexer chip?

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Question 6easy

The expansion inputs to a comparator are used for expansion to a(n):

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Question 7easy

How many inputs will a decimal-to-BCD encoder have?

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Question 8easy

A principle regarding most IC decoders is that when the correct input is present, the related output will switch: