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Digital Electronics

Digital Electronics
A gate is inhibited when its inhibit input is at logic 1. The gate is

 NAND
 none of these
 AND
 OR

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Digital Electronics
In Boolean algebra A.A is equal to

 A²
 1
 A
 2A

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

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Digital Electronics
A single flip-flop can be cleared (reset) to

 Both A and B
 0
 None
 1

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Digital Electronics
Which one of the following is not a vectored interrupt?

 INTR.
 RST 6.5.
 RST 7.5.
 TRAP.

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Digital Electronics
A multiplexer is a

 1-to-N device
 N-to-1 device
 1-to-1 device
 N-to-N device

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