Automation System
The program execution time:

All of these
None of these
must be slower than the fastest mechanical operation that is to be controlled
will vary depending on the language used
cannot be changed once the program is written

ANSWER DOWNLOAD EXAMIANS APP

Automation System
Light sensors:

cannot be used a s limit switches.
work in direct sunlight
never use infrared light as light source
come in a wide variety of mounting styles
None of these

ANSWER DOWNLOAD EXAMIANS APP