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Digital Electronics

Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 OR
 NAND
 none of these
 NOR

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Digital Electronics
Boolean algebra is also known as

 Switching algebra
 Gate algebra
 Transistor algebra
 Counting algebra

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 XOR, NOR, NAND.
 NOR, NAND.
 NOR, NAND, XNOR.
 OR, NOT, AND.

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Digital Electronics
What is the radix of octal number system ?

 8
 2
 16
 10

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 0. The gate is either

 an OR or an X-NOR
 an AND or a NOR
 an OR or an X-OR
 a NAND or an X-OR

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 12
 6
 10
 9

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