As a general rule, the 741 operational amplifier is not operated below a gain of about 100.
Answer the following statement true (T) or false (F)
False
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Bi-directional control means:
A. The computer is able to move an output in two different directions B. The technician can tell a computer to exercise an output C. The technician can reprogram the computer D. None of the above
The component of a PLC that interfaces between output field devices such as relays, motor starters, annunciators, and the like and the CPU is ____.
A. PLC rack B. input module C. output module D. power supply
What is one common application of an electric heating furnace?
A) Combining it with a split-system heat pump B) Combining it with a multisystem heat pump C) Combining it with a triple-system heat pump D) Combining it with a cool heat pump
The statement that total current entering a point must equal total current leaving that point best describes
_____. a. Ohm?s law b. Coulomb?s total current law c. The Theory of Relativity d. Kirchhoff?s current law