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Lesson 12
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MCQ from PREVIOUS YEARS PSU EXAMINATIONS

Likhitha Darsi
GATE EE AIR-382,DISC FROM IIT MADRAS, interviewed by BARC,IOCL,PGCIL,APGDC Junior Executive in AAI Interested in reading books and watching

U
Unacademy user
great course mam .......
  1. MCSs ON BOOLEAN AL GEBRA, LOGIC GATES AND K- MAPS DARSI LI KH THA


  2. correct ? ouing .hon is n UL 0 a) NAND gate AT-A-) olp= Invested (c) AND gate A ole of gate will be C (A) If one of in Fto an EX NOR gate is xed to logic!


  3. (0) Three sels of simu Haneous equations are given A0 AC ; The souon of the above canaions oi beC> SoluTon o An AND ate (a) gives high outh only when all;lps are low (b) Equivalent to series suoitching arcuilt (e) Im lements logicaddition d) Equivalentto barallel btdhirg en all s are lo al lps are l Equivalent t Seies o


  4. (9) Th9ee square waves x,y and Z as shown in digure below an e tr be ANDED . The frequency of AND6p olp will be 0 0.25 SD 0-1 t(ms) mS m S equenc = 025 0.5 0.75 1.o 1-35 l-So 2xlo3 2-0 tcm) 500Hz 500 Hz ax1p3 3 oSXo3