The component of a PLC that interfaces between input field devices such as pushbuttons, limit switches, selector switches, and the like and the CPU is the ____.
A. PLC rack
B. input module
C. output module
D. power supply
Answer: B
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La mayoría de los códigos de construcción exigen que los puentes se instalen en filas entre las viguetas del piso a intervalos de no más de _____
a. 4' (1.2 m) b. 6' (1.8 m) c. 8' (2.4 m) d. 10' (3 m)
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Improper combustion can lead to ____.
A. excessive carbon monoxide production B. smoke condition around furnace C. wasted fuel oil D. All of the above.
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Technical skills are more important at the level of the first-line supervisor than at other
management levels.
Indicate whether the statement is true or false.
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Which of these in NOT a normal shift mode?
A) Reverse w/OD B) 2 C) Reverse D) D
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