How can CPUs differentiate between coils and contacts with respect to the timer command?
What will be an ideal response?
The CPU can interpret a timer command to be a coil instead of a contact when, directly following the command, the time of the timer is entered instead of a tie command such as AND or OR.
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What was the downside to RS232?
What will be an ideal response?
When verifying a position tolerance ____________________, a measurement system that provides a numerical value for a measurement is typically used.
Fill in the blank(s) with the appropriate word(s).
Most R-134a refrigeration systems use ________ oil for lubrication.
A) PAG B) SAE 30 C) POE D) Mineral
As part of the paranoia and anxieties generated by the Cold War, which of the following groups were incarcerated in medical institutions on claims that they threatened national security?
a. socialists and communists b. homosexuals and the mentally ill c. pacifists and conscientious objectors d. feminists and civil rights leaders