2, 4, 13 Exam Questions
and Complete Solutions
Graded A+
Denning [Date] [Course title]
, The number and type of I/O's cannot be changed in a fixed PLC. True or False. - Answer: True
The scan time is the required for one complete execution of the user program. True or False. - Answer:
True
Plug-in compartments allow I/O modules to be easily connected and replaced. True or False. - Answer:
True
The programming device must be connected to the controller to run the program. True or False -
Answer: False
PLC six advantages are: - Answer: 1. Increased Reliability
2. More Flexibility
3. Lower Cost
4. Communications Capability
5. Faster Response Time
6. Easier to troobleshoot
A PLC is basically a computer designed for use in electrical control applications. True or False. - Answer:
True
One disadvantage of modular I/O is its lack of flexibility. True or False. - Answer: False
Removing the programming device from the PLC will not affect the operation of the user program. True
or False. - Answer: True
The instruction set for a particular PLC lists the types of instructions supported. True or False. - Answer:
True
The number of I/O points does not affect the memory size required for a PLC installation. True or False. -
Answer: False