| 31. | The A/D converter whose conversion time is independent of the number of bits is |
| Discuss |
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Answer: (c).Parallel conversion
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| 32. | A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be |
| Discuss |
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Answer: (a).15 ns
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| 33. | Words having 8-bits are to be stored into computer memory. The number of lines required for writing into memory are |
| Discuss |
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Answer: (d).8
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| 34. | In successive-approximation A/D converter, offset voltage equal to 1/2 LSB is added to the D/A converter’s output. This is done to |
| Discuss |
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Answer: (b).Reduce the maximum quantization error.
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| 35. | How many flip flops are required to construct a decade counter |
| Discuss |
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Answer: (c).4
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| 36. | Which TTL logic gate is used for wired ANDing |
| Discuss |
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Answer: (a).Open collector output
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| 37. | The MSI chip 7474 is |
| Discuss |
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Answer: (c).Dual edge triggered D flip-flop (TTL)
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| 38. | When the set of input data to an even parity generator is 0111, the output will be |
| Discuss |
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Answer: (b).0
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| 39. | How many flip-flops are required to construct mod 30 counter |
| Discuss |
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Answer: (a).5
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| 40. | The number of control lines for 16 to 1 multiplexer is |
| Discuss |
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Answer: (b).4
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