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Automation System

Automation System
If a sine wave has a frequency of 500 Hz, the period in seconds of the sine wave is:

0.003
5000
0.02
0.002.
None of these

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Automation System
Which of the following may be classified as an automation system?

automated warehouses
numerically controlled machine tools
robotics
None of these
All of these

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Automation System
Which part of the system allows the user to interact with the compiler? (a) Memory

Translator
Interpreter
None of these
Communications processor
None of these

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Automation System
Most continuous control actuators:

None of these
are used with standard continuous control loop
(b) and (c) above
are of the time proportioning type
use a 4 to 20 mA current loop input

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Automation System
The Ziegler-Nichols method:

a and b above
None of these
is a method of control
can be used to determine gain factors of a PI loop
is a graphical solution method

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Automation System
Compared to humans, machines:

can make more complex decisions based on unexpected circumstances
None of these
can work in harsher environments
(a) and (c)
make fewer errors

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