Automation System
A flip-flop:

(a) and (c)
is a sequential logic device
is a combinational logic device
remembers what was previously stored in it
None of these

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Automation System
Resolution in a CRT refers to:

the number of addressable elements on the tube
the number of phosphor dots that react when hit by the electron beam
None of these
the speed at which the monitor can accept data from the computer
the number of pixels in each square centimeter

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Automation System
A solenoid:

is widely used in industrial automation
None of these
is related to an aneroid
is spring operated
can be used only in de circuits

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