Overview 1_sem1_2324_E

What does the AC/DC/DC symbol on the PLC CPU mean?

• Output power/input power/PLC power supply

• PLC power supply/output power/input power

• PLC power supply/input power/output power

• All are wrong.

What is this symbol called?

• Output coil

• Normally Open contact

• Normally Closed contact

In the relay, what is the main purpose of the coil?

• Increase the current

• Reduce the voltage

• Generates the magnetic field

• Protects the relay from overcurrent

Choose the symbol that is similar to this diagram.

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PLC is the acronym for?

• Programmable Local Computer

• Personal Logic Controller

• Personal Logic Computer

• Programmable Logic Controller

STL Programming (Statement list)?

• Graphic style, ladder type, same as electrical control panel wiring design

• It is a high-level programming language similar to Pascal

• Graphical style, depicting the process of signal flow between function blocks, similar to wiring an electronic circuit

• Contains a series of instructions. Each instruction is on one line, similar to machine language

In the water level storage tank, the manual mode program controls the water level by monitoring the _________ switch input

• Low sensor switch

• High sensor switch

• Both a and b

• None of the above

The programmable logic controllers are used in __________

• Glass and paper industry

• Process automation plants

• Cement manufacturing

• All of the above

The control logic in a programmable logic controller can be programmed by _____

• FBD , ladder logic

• Sequential logic

• Structured text

• All of the above

In modular type PLC, the PLC’s are classified into _______

• Relay output PLC

• Transistor output PLC

• Triac output PLC

• All of the above