a) remain the same b) become half c) become double d) become four times.

a) b) BC c) d) AB.

a) b) c) zero d)

a) 2 b)3 c)4 d) 5.

a) A+B+C+D b) c) 1 d) 0.  

a) 123 b) 312 c) 213 d) 132.

a) OR gates only b) AND gates, OR gates and NOT gates c) OR gates and NOT gates d) none of these.

a) 0.5 b) 1 c) 0.25 d) 0.1.

a) input b) clock pulse c) output d) none of these.