# Electronics and Communication Engineering - Digital Electronics

11.

Full adder circuit can be implemented by

 A. Multiplexers B. Half adders C. AND or OR gates D. Decoders

Explanation:

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12.

(FE35)16 XOR (CB15)16 is equal to

 A. (3320)16 B. (FE35)16 C. (FF50)16 D. (3520)16

Explanation:

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13.

If 4 in binary system is 100 then 8 will be

 A. 10 B. 100 C. 111 D. 1000

Explanation:

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14.

In the given figure A = 1, B = 1. B is now changed to a sequence 101010................The outputs X and Y will be

 A. fixed at 0 and 1 respectively B. X = 1010.......and Y = 0101........ C. X = 1010..........and Y = 1010 D. fixed at 1 and 0 respectively.

Explanation:

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15.

The ALU carrier out arithmetic and logic operations (OR AND, NOT, etc.) it processes

 A. decimal numbers B. binary numbers C. hexadecimal numbers D. octal numbers