One advantage of a PC in industrial control is that it:
A. has a reliable long life compared to relay logic
B. is very difficult for the inexperienced programmer to understand
C. is unreliable because there are no moving parts
D. All of the above
E. None of the above
Answer: Option A
A. defines the form of the instruction
B. is always machine dependent
C. is never machine dependent
D. All of the above
E. None of the above
Which of the following symbol modes are used to input of graphics to General CAD system?
A. Live and Rectangle mode
B. Arc and Circle mode
C. Dimension and Alphanumeric mode
D. All of the above
E. None of the above
A. Solid modeling
B. Wire-frame modeling
C. Surface modeling
D. FEM (Finite Element Modeling)
E. None of the above
A. should be built in a modular fashion wherever possible
B. are very difficult to change
C. are very flexible
D. (a) and (c) above
E. None of the above
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