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Computer Science - Automation System

Exercise : Automation System - Section 3
41.
An operating system:
can help reduce software development time
provides ability for other programmers to understand the software structure
is useless in most control applications
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
A programmable controller:
can be used on more than one machine during its lifetime.
can be reprogrammed in the field
requires considerable training before it can be used
(a) and (b) above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
A LISP environment consists of a language, a programming environ¬ment, and:
random-access storage
a processor
a large address
a set of functions
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
What Is a process variable?
A manipulated variable
A controlled variable
A process parameter that changes value
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Time proportioning control:
can be used on a PM550 programmable process controller
is less efficient than normal PID control
cannot use a TM990 micro¬computer
a and b above.
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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