| 81. | There are________________ basic types of flip-flop based on clock trigger. |
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Answer: (d).4
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| 82. | The characteristic equation of any flip-flop describes the __________________ of the next state in terms of the present state and inputs. |
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Answer: (b).Behavior
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| 83. | The normal data inputs to a flip-flop (D, S and R, J and K, T) are referred to as ________________ inputs. |
| Discuss |
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Answer: (c).Synchronous
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| 84. | Asynchronous inputs, just like synchronous inputs, can be engineered to be ______________. |
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Answer: (d).Both b and c
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| 85. | ___________ and Clear should not be 0 at the same time; otherwise, both the outputs will be 1, which is known as invalid state. |
| Discuss |
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Answer: (a).Preset
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| 86. | Which table indicates the input conditions of the flip-flops necessary to cause all possible next state transitions of a flip-flop? |
| Discuss |
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Answer: (c).Flip- flop excitation
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| 87. | When a circuit is self- correcting? |
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Answer: (d).If there are no cycles among its unused states
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| 88. | A PLA consists of two-level____________ circuits on a single chip. |
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Answer: (a).AND-OR
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| 89. | In which of the following types of counters, the flip-flops do not change states at exactly the same time? |
| Discuss |
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Answer: (c).Asynchronous ripple counter
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| 90. | The number of states through which the counter goes is also known as ____________. |
| Discuss |
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Answer: (d).MOD number
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