# Digital Electronics [GATE (Graduate Aptitude Test in Engineering) Instrumentation]: Questions 44 - 48 of 51

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## Question 44

Appeared in Year: *2012*

### Question

MCQ▾In the sum of products function the prime implicants are

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | ||

c. | ||

d. |

## Question 45

Appeared in Year: *2012*

### Question

MCQ▾The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B. The number of combinations for which the output is logic 1, is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 10 | |

b. | 6 | |

c. | 4 | |

d. | 8 |

## Question 46

Appeared in Year: *2014*

### Question

MCQ▾Frequency of an analog periodic signal in the range of 5 kHz – 10 kHz is to be measured with a resolution of 100 Hz by measuring its period with a counter. Assuming negligible signal and transition delays the minimum clock frequency and minimum number of bits in the counter needed, respectively, are:

### Choices

Choice (4) | Response | |
---|---|---|

a. | 1 MHz, 10-bits | |

b. | 10 MHz, 10-bits | |

c. | 10MHz, 8-bits | |

d. | 1 MHz, 8-bits |

## Question 47

Appeared in Year: *2013*

### Question

MCQ▾In the circuit shown below the op – amps are ideal. Then in volts is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 8 | |

b. | 6 | |

c. | 10 | |

d. | 4 |

## Question 48

Appeared in Year: *2012*

### Question

MCQ▾Consider the given circuit

In this circuit, the race around

### Choices

Choice (4) | Response | |
---|---|---|

a. | Does not occur | |

b. | Occurs when CLK = 0 | |

c. | Occurs when CLK = 1 and A = B = 1 | |

d. | Occurs when CLK = 1 and A = B = 0 |