Dec 27, 2013

DL Practice Questions-Part 1

In this Post I am going to put 5 questios from Digital Logic.I will be posting the solutions tomorrow.Have a small practice.If you like the questions post in the comments so that I can increase the frequency and no.of questions.

Digital Logic Practice Questions - 1

1. Find the number of flip flops that will be complemented in a 10-bit binary ripple counter to reach the next count after 1110001011?
  1. 3
  2. 4
  3. 1
  4. Data Insufficient

2. How many 16 x 4 RAMs are required to achieve a memory with a capacity of 64K and a word length of 8 bits?
  1. 8K
  2. 4K
  3. 16K
  4. None

3. An n-bit twisted ring counter (Johnson’s ring counter) can have how many different output states?
  1. 10
  2. 1024
  3. 20
  4. 1000

4. How many Boolean functions on two independent Boolean variables a and b are dependent on either a or b or both?
  1. 16
  2. 15
  3. 14
  4. 13

5. Determine the minimum number of input NOR gates needed to realize the four variable function f(A, B, C, D) = ∑(0,1,2,6,8,9,10,11,14,15). Inputs are available in both prime and non prime form.
  1. 3
  2. 4
  3. 5
  4. 6


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