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c.  negative edge-triggered device
                         d.  pulse-triggered device.

                 11.  An astable multivibrator


                         a.  generates a continuous flow of pulses
                         b.  is a flip-flop
                         c.  generates a single short pulse
                         d.  always is in one of the two stable states.

                 12.  A monstable multivibrator is also called a

                         a.  flip-flop
                         b.  clock
                         c.  one shot multivibrator
                         d.  free running multivibrator.


               Answers to Multiple Choice Questions



                1. (d)                 2. (b)                  3. (a)                 4. (c)
                5. (b)                 6. (a)                  7. (b)                 8. (a)

                9. (d)                 10. (d)                 11. (a)                12. (c)
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