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- This is a FREE online test. DO NOT pay money to anyone to attend this test.
- Total number of questions :
**20**. - Time alloted :
**30**minutes. - Each question carry 1 mark, no negative marks.
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- All the best :-).

1. | How many binary bits are necessary to represent 748 different numbers? |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Digital Concepts Discuss about this problem : Discuss in Forum |

2. | SMT stands for small-to-medium technology. |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Digital Concepts Discuss about this problem : Discuss in Forum |

3. | The systems shown in the given figure transfer data ________. |
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Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Digital Concepts Discuss about this problem : Discuss in Forum |

4. | Convert binary 11001111 to hexadecimal. |
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Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Number Systems and Codes Discuss about this problem : Discuss in Forum |

5. | Zeros may be added to the left of the MSB to produce even groups of 4 bits when converting from binary to hexadecimal. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Number Systems and Codes Discuss about this problem : Discuss in Forum |

6. | In binary, the decimal number 93 converts to ________ digits. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Number Systems and Codes Discuss about this problem : Discuss in Forum |

7. | Which of the following gates has the exact inverse output of the OR gate for all possible input combinations? |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Logic Gates Discuss about this problem : Discuss in Forum |

8. | How many 2-input NOR gates does it take to produce a 2-input NAND gate? |
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Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Combinational Logic Analysis Discuss about this problem : Discuss in Forum |

9. | A digital circuit that converts coded information into a familiar or non-coded form is known as an encoder. |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Combinational Logic Circuits Discuss about this problem : Discuss in Forum |

10. | In VHDL, each instance of a component is given a name followed by a semicolon and the name of the library primitive. |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Flip-Flops Discuss about this problem : Discuss in Forum |

11. | The postponed symbol () on the output of a flip-flop identifies it as being ________. |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Flip-Flops Discuss about this problem : Discuss in Forum |

12. | Which of the following procedures could be used to check the parallel loading feature of a counter? |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Counters Discuss about this problem : Discuss in Forum |

13. | To design a divide-by-200 counter using synchronous counters, two 4-bit counters could be cascaded together to form an 8-bit counter. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Counters Discuss about this problem : Discuss in Forum |

14. | The refresh period for capacitors used in DRAMs is ________. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Memory and Storage Discuss about this problem : Discuss in Forum |

15. | The output of this circuit is always ________. |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Programmable Logic Device Discuss about this problem : Discuss in Forum |

16. | An ALU is a multipurpose device capable of providing several different logic operations. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Digital Arithmetic Operations and Circuits Discuss about this problem : Discuss in Forum |

17. | One of the first steps in any HDL project is to define its scope by naming each input and output. |
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Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Digital System Projects Using HDL Discuss about this problem : Discuss in Forum |

18. | In the stepper motor, the half-step sequence is used when ________. |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Digital System Projects Using HDL Discuss about this problem : Discuss in Forum |

19. | What is the difference between the 74HC00 series and the 74HCT00 series of CMOS logic? |
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Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Logic Families and Their Characteristics Discuss about this problem : Discuss in Forum |

20. | Which of the following buses is primarily used to carry signals that direct other ICs to find out what type of operation is being performed? |
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Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Microprocessor Fundamentals Discuss about this problem : Discuss in Forum |

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