How is the control voltage pin (pin 5) used?
What will be an ideal response?
If this pin is connected to Vcc through a variable resistor, the on time is longer, but the off time is not affected. If pin 5 is connected to ground through a variable resistor, the on time is shorter, and the off time is still not affected. If pin 5 is not to be used in the circuit, it is usually taken to ground through a small capacitor. This helps to keep circuit noise from "talking" to pin 5.
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How is dynamic braking for a DC motor accomplished?
What will be an ideal response?
IDENTIFY TEST PROCESS SYMBOLS AND DIAGRAMS
``Timely,'' as the term relates to control, means
a. as soon as possible. b. at least monthly. c. as needed. d. within twenty-four hours, as a general rule. e. every six months.
Adding length to a bimetal element is done by shaping the element. The shapes used are ____________________, ____________________, ____________________, and ____________________.
Fill in the blank(s) with the appropriate word(s).