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Digital Electronics

Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 AND
 NOR
 OR
 XOR

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code encoder
 code decoder
 code converter
 coder

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Digital Electronics
The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are

 Inclined at 30°.
  Parallel.
 Inclined at 60°.
 Perpendicular.

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

 none of these
 OR
 NAND
 NOR

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 X-NOR gate
 NAND gate
 NOR gate
 X-OR gate

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Digital Electronics
The momentary change in the output/state of the flip-flops is known as

 tri-state
 trigger
 unstable state
 inverter

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MORE MCQ ON Digital Electronics

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