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Chapter 4 PLC Exam 1 Questions and Complete Solutions Graded A+
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Chapter 4 PLC Exam 1 Questions and Complete Solutions Graded A+
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Chapter 4 PLCExam 1 Questions
and Complete
Solutions Graded
A+
Denning [Date] [Course title]
, Integrated programming devices are typically found on nano-PLCs - Answer: true
Personal computers (PCs) are the most common programming devices used with PLCs. - Answer: true
Input devices typically operate at lower voltages than those used by the CPU of a PLC - Answer: false
An output component typically operates at a voltage lower than the operating voltage of a PLC CPU -
Answer: false
PCs are used as programming devices on all sizes of PLCs - Answer: true
the two types of form factors used with PLCs are fixed and modular - Answer: true
Housekeeping and overhead is the section of the operating cycle during which a PLC performs memory
management and updates timers and counters - Answer: true
All PLCs have three common sections regardless of the manufacturer, model, or size - Answer: false
Pushbuttons, selector switches, limit switches, and proximity switches are common input devices. -
Answer: true
The standard unit of memory for a PLC is the byte - Answer: false
PLC components are not typically interchangeable between manufacturers - Answer: true
EEPROM is used in PLCs to provide power failure backup for the RAM memory. - Answer: true
CPUs are rated according to program memory size and scan time - Answer: true
The number and type of I/Os cannot be changed in a fixed PLC. - Answer: true
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