Demultiplexer - Decoders - MCQs with answers

Demultiplexer - Decoders - MCQs with answers


Q1. Which method of combination circuit implementation is widely adopted with maximum output functions and minimum requirement of ICs?

a. Multiplexer Method
b. Decoder Method
c. Encoder Method
d. Parity Generator Method

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ANSWER: b. Decoder Method



Q2. What is the normal operating condition of decoder corresponding to input & output states?

a. E= 0 & Outputs at '0' logic state
b. E = 1 & Outputs at '1' logic state
c. E= 0 & Outputs at '1' logic state
d. E= 1 & Outputs at '0' logic state

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ANSWER: a. E= 0 & Outputs at '0' logic state



Q3. Why are the enale lines specifically used for connecting two or more IC packages in accordance to its application in decoder circuit?

a. It allows the reduction of digital function into similar function with more inputs & outputs

b. It allows the expansion of digital function into similar function with more inputs & outputs

c. It allows the reduction of digital function into different function with more inputs & outputs

d. It allows the expansion of digital function into different function with more inputs & outputs

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ANSWER: b. It allows the expansion of digital function into similar function with more inputs & outputs


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