Automation System
What is the difference between integral and derivative control?

integral control has slower response to an error signal.
None of these
All of these
derivative control responds to a change in the rate of change in the error signal
derivative control does not eliminate offset error

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Automation System
If the transient response of a system is overdamped:

the value of the output exceeds the value of the input at times during the transient period.
the value of the output never stabilizes.
None of these
the value of the output never exceeds the value of the input during the transient period.
All of these

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Automation System
Stepping motors:

can run at varying speeds
do not require commutators
can be built to index different amounts by changing the pole configuration
can run both clockwise and counterclockwise
All of these

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Automation System
In raster-scan colour monitors, colour can be intensified by:

having each electron gun controlled by a composite signal
grouping the phosphor dots in a circular pattern
having each electron gun controlled by separate signal
None of these
using an in-line gun arrangement with a solid metal mesh

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