Combinational Circuits – IQ – 1

1. Define combinational logic ?
When logic gates are connected together to produce a specified output for certain specified combinations of input variables, with no storage involved, the resulting circuit is called combinational logic. 

2. Explain the design procedure for combinational circuits ?
(1) The problem definition.
(2) Determine the number of available input variables & required O/P variables. 
(3) Assigning letter symbols to I/O variables.
(4) Obtain simplified Boolean expression for each O/P.
(5) Obtain the logic diagram. 

3. Define multiplexer ? 
 Multiplexer is a digital switch. If allows digitalinformation from several sources to be routed onto a single output line. 

4. Define Decoder ? 
A decoder is a multiple – input multiple output logic circuit that converts coded inputs into coded outputs where the input and output codes are different. 

5. What is binary decoder ? 
A  decoder is a combinational circuit that converts binary information from n input lines to a maximum of 2n out puts lines. 

6. Define Encoder ? 
An encoder has 2n input lines and n output lines. In encoder the output lines generate the binary code corresponding to the input value. 

7. What is priority Encoder ? 
A priority encoder is an encoder circuit that includes the priority function. In priority encoder,  if 2 or more inputs are equal to 1 at the same time, the input having the highest priority will take precedence. 

8. What do you mean by comparator ?
A comparator is a special combinational circuit designed primarily to compare the relative magnitude of two binary numbers. 

Combinational Circuits – Mcq
Combinational Circuits – Notes
Combinational Circuits – IQ

Be a Part of The New & Next

MCQs fb  MCQs G+

Share the Knowledge

GATE Total InfoGATE 2019 BooksFree Notes
IES Total InfoIES 2019 BooksFree Mock tests
JAM Total InfoJAM 2019 BooksEngg Diploma
PSUs Total InfoM Tech Total InfoUGC NET Total Info

General Knowledge Books

McqSeries.com is an online forum for multiple choice questions. This forum would be really-really helpful for those candidates who are preparing for examination conducted by Union Public Service Commission (like Civil Services Examination, Engineering Services Examination, Special Class Railway Apprentice, National Defence Academy, Combined Defence Services, etc.), Staff Selection Commission (like Combined Graduate Level, Junior Engineer, Food Corporation of India etc.), various public sector units (like DRDO, DMRC, BARC, BSNL, ONGC, etc.), Graduate Aptitude Test in Engineering, Indian Institute of Technology Entrance Examination etc. and many other national and state level examination.

Leave a Reply

Your email address will not be published. Required fields are marked *

Shares
GATE, IES & PSUs Total Information & GuidanceCheck Here!
Copy Protected by Chetan's WP-Copyprotect.