Automation System - Section 5 | Multiple Questions and Answers

26.	The program execution time:

	A.	must be slower than the fastest mechanical operation that is to be controlled
	B.	will vary depending on the language used
	C.	cannot be changed once the program is written
	D.	All of the above

27.	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

28.	An operating system:

	A.	is required to run a microprocessor system
	B.	provides a structure with which to develop application programs
	C.	is useful because standard modules can be used
	D.	both (b) and (c)

29.	When one must sell a project to management, the most important document he or she can produce is a:

	A.	method for financing the project
	B.	summary of the problem
	C.	project evaluation
	D.	procedure for purchase