129) Which of the following conditions must be met to avoid race around problem ?

130) Match List I with List II and select the correct answer form the codes given below the list
List I
A. A shift register can be
B. A multiplexer
C. A decoder can
List II
1.for parallel to serial conversion
2.to generate memory can be used chip select
3.for parallel to serial conversion

131) With the use of an electronic counter six capsules are to be filled in bottles automatically. In such a counter what will be the number of flip-flops required ?

132) A pulse train can be delayed by a finite number of clock periods using

133) How many illegitimate states has synchronous mod-6 counter ?