Automation System – Section 3

46. What is the process lag?

A. The time it takes for the sensor to respond to a changed.
B. The lag in the error signal when the setpoint is changed.
C. The time it takes for the mass of the process to respond to an input change.
D. All of the above
E. None of the above

Correct Answer:  C. The time it takes for the mass of the process to respond to an input change.

47. 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?

A. 18.0
B. 133.36
C. 149.88
D. 1275.41
E. None of the above

Correct Answer:  B. 133.36

48. The two types of relays in a PC are:

A. an output relay and a control relay
B. a control relay and a retentive relay
C. a retentive relay and a non-retentive relay
D. All of the above
E. None of the above

Correct Answer:  A. an output relay and a control relay

49. A common way to take x, y coordinates off a drawing is to use a

A. light pen
B. digitizer
C. Direct view storage tube (DVST)
D. Tablet
E. None of the above

Correct Answer:  B. digitizer

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