The minimum number of kitchen-area small appliance circuits required by the NEC® in a residence is _____
A) one
B) two
C) three
D) four
Answer: B
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Answer the following statement(s) true (T) or false (F)
1. The input/output section, or I/O section, is the major reason that PLCs are so versatile when used with process machines or driven equipment. 2. Discrete I/O modules are types of modules that only accept digital or ON- and OFF-type signals. 3. Status lights are provided for each output point to indicate when that point has been turned OFF. 4. The analog output module changes Binary or BCD values generated in the PLC logic into analog signals using an RTD. 5. While it is important that the controller and programming unit be installed or mounted in a control center or other central location, the use of remote I/O racks allows the input and output modules to be installed close to the actual operating equipment.
Why is the generic name of a plant a noun, and the species name an adjective?
What will be an ideal response?
Which of the following soldering methods is recommended when repairing wiring in electronic engine wiring harnesses?
A. use soldering gun to apply heat to the wire, then apply solder to the wire B. use soldering gun to melt solder, then drizzle onto wire. C. use a propane torch to heat wire, then apply solder D. use a heat gun to heat wire, then apply solder to terminal
The frequency of AC voltage is defined as ________
A) the number of cycles per second B) the peak voltage of the voltage C) the period of the voltage