Download Aptitude Crack
img not found img not found

Digital Arithmetic Operations and Circuits

Q1:

For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:

A the same as if the carry-in is tied LOW since the least significant carry-in is ignored.

B that carry-out will always be HIGH.

C a one will be added to the final result.

D the carry-out is ignored.

ANS:C - a one will be added to the final result.

For Example, consider two 4-bit Numbers: A = 1100 and B = 1000; Cin =1 (as given).

Add A & B.
1100
1000
-------
10100

Now Cin added to the final result.
10100
-----1
--------
10101.

Hence, option C is correct.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.