# 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

Digital Electronics

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

Digital Electronics

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

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