|
The central processing unit ___
|
|
0
|
210
|
July 26, 2022
|
|
The programming device ___
|
|
0
|
222
|
July 26, 2022
|
|
Unlike personal computers, PLCs are ___
|
|
0
|
315
|
July 26, 2022
|
|
At the start of the PLC scan the ___
|
|
0
|
294
|
July 26, 2022
|
|
When a field device contact connected to the input module closes ___
|
|
0
|
241
|
July 26, 2022
|
|
The symbol in a ladder logic diagram represents a ___
|
|
0
|
182
|
July 26, 2022
|
|
The symbol in a ladder logic diagram is ___
|
|
0
|
217
|
July 26, 2022
|
|
The programming device must be connected to the controller ___
|
|
0
|
1090
|
July 26, 2022
|
|
The control plan stored in the PLC is called ___
|
|
0
|
225
|
July 26, 2022
|
|
The power required to operate the logic circuits of the processor unit is typically ___
|
|
0
|
266
|
July 26, 2022
|
|
Field or real-world devices refer to ___
|
|
0
|
361
|
July 26, 2022
|
|
PLC proprietary architecture ___
|
|
0
|
163
|
July 26, 2022
|
|
The main difference between a PLC and relay control system is that ___
|
|
0
|
232
|
July 26, 2022
|
|
Which of the following is not an advantage that PLCs offer over the conventional ___
|
|
0
|
306
|
July 26, 2022
|
|
Modifying relay-type process control circuits usually involves changing the ___
|
|
0
|
509
|
July 26, 2022
|
|
Basically, the function of a PLC is to ___
|
|
0
|
198
|
July 26, 2022
|
|
PLCs were originally designed as replacements for ___
|
|
0
|
369
|
July 26, 2022
|
|
Digital modules are also called discrete modules
|
|
0
|
192
|
July 26, 2022
|
|
Discrete means that each input or output has two states: true (on) or false (off)
|
|
0
|
149
|
July 26, 2022
|
|
Most PLC electronic components are not sensitive to electrostatic discharge
|
|
0
|
205
|
July 26, 2022
|
|
A redundant PLC system is configured using two processors
|
|
0
|
257
|
July 25, 2022
|
|
A module inserted into the wrong slot could be damaged
|
|
0
|
165
|
July 25, 2022
|
|
I/O modules are normally installed or removed while the PLC is powered
|
|
0
|
287
|
July 25, 2022
|
|
A modular PLC that has room for several I/O modules, is capable of being customized for a particular application
|
|
0
|
220
|
July 25, 2022
|
|
Most PLC programming software will allow you to develop programs on another manufacturer's PLC
|
|
0
|
188
|
July 25, 2022
|
|
When a new program is loaded into a PLC’s memory, the old program that was ___
|
|
0
|
282
|
July 25, 2022
|
|
Information stored in a RAM memory location can be written into or read from
|
|
0
|
137
|
July 25, 2022
|
|
RAM memory is nonvolatile
|
|
0
|
137
|
July 25, 2022
|
|
A nonvolatile memory will retain its programmed contents if operating power is lost
|
|
0
|
147
|
July 25, 2022
|
|
A volatile memory will lose its programmed contents if operating power is lost
|
|
0
|
222
|
July 25, 2022
|