DEPTT.= ELECTRICAL & ELECTRONICS
SEMESTER = IV TH
DELD-I
UNIT –I
Q1. Convert the following
a)
b)
c)
d)
e)
12310 =()2
138 =()2
1010011G=()2
43216 =()8
1101102 =()G
Q2. Simplify Boolean function by using K-Map
Y= ∑m (0,2,3,1,7)+ ∑d (8,10,12)
Q3. Add 647 and 487 in BCD?
Q4. Simplify the expression
a). AB’+BC+A(AB+C)’
b). A’B ‘+CB’+ABC+CA
Q5. Define gray code & BCD code?
UNIT=II
Q6. Explain half adder and full adder ?
Q7. Explain look ahead carry generator?
Q8. Explain the working of serial adder and subtractor?
Q9. Construct a 5 to 32 line decoder using four 3 to 8 line decoders?
Q10. What is priority encoder?
UNIT=III
Q11. What is race around condition & how it can be avoded?
Q12. Write steps involved in designing a sequential circuit?
Q13. Explain the T flip flop & J-K flip flop ?
Q14. What is meant by edge triggering ? Discuss the working of edge triggering
circuit?
Q15. Explain the working of S-R flip flop? Also draw state diagram?
UNIT=IV
Q16. What is a shift register and its types?
Q17. Explain Johnson counter?
Q18. What is Ring Counter?
Q19. Draw diagram of MOD 8 ripple counter and waveforms at output of flip
flops. Why is it called a divide by 8 counter?
Q20. Compare the performance of Asynchronous and Synchronous counter?
UNIT=V
Q21. What is RAM?
Q22. Explain dual slope A to D converter?
Q23. Explain ROM and its working . how is it different from PLA?
Q24. Explain the working of successive approximation type A to D ?
Q25. Explain the working of Binary weighted D to A?