Automation System
Which of the following symbol modes are used to input of graphics to General CAD system?

Dimension and Alphanumeric mode
Live and Rectangle mode
All of these
None of these
Arc and Circle mode

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Automation System
An encoder:

converts an input to a binary number
None of these
is used to send telegraph signals
can have only four keys
converts a binary number to a decimal number.

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Automation System
Time proportioning control:

cannot use a TM990 micro¬computer
a and b above.
can be used on a PM550 programmable process controller
is less efficient than normal PID control
None of these

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Automation System
If the transient response is under damped:

None of these
both a and b
steady-state will be reached faster than if the system is overdamped
the value of the output will exceed the value of the input at times during the transient period
the present overshoot is zero

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