Automation System
If the present value in a timer in the TI510 is 8, how many milliseconds is required from the time the timer is started until the output is enabled?

None of these
133.36
149.88
18
1275.41

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Automation System
Digital signals:

can have three possible levels
have a sinusoidal shape.
have a frequency measured in units of hertz
None of these
are assigned values of 1 or 0 depending on the voltage level

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Automation System
Time proportioning control:

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

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