Power Switching Circuits

For a three plate switching circuit, the feed cable is run from the switchboard and daisy chained directly to the light fittings.

• True

• False

On a 3 Heat Switch, which setting has the elements in Parallel?

• Low

• Medium

• High

On a 3 Heat Switch, which setting has the elements in Series?

• Low

• Medium

• High

On a 3 Heat Switch, which setting has 1 element in Circuit?

• Low

• Medium

• High

Which two (2) of these are examples where a three heat switch may be used?

• Coffee Machine

• Space Heater

• Toaster

• Electric Blanket

Which two (2) of these are examples where a Simmerstat may be used?

• Coffee Machine

• Electric Cooker

• Toaster

• Refrigerator

On a Contactor, which Terminals are used for the Latching Contact that keeps the Contactor engaged after you release your finger?

• The A1 and A2 terminals

• The NC terminals

• The NO terminals

• The L1 and T1 terminals

Which two of these are types of internal switches that PLCs may contain?

• Capacitors

• Circuit breakers

• Relays

• Transistors

• Contactors

The flow of the internal programmable relay control circuit goes in what direction?

• Top to bottom and right to left.

• Random or arbitrary direction.

• Right to left and bottom to top.

• Left to right and top to bottom.

Which five of these are hardware components of a typical PLC?

• Central Processing Unit (CPU), Input/Output (I/O) Modules, Power Supply, Memory, Communication Modules
• Monitor, Router, Modem, Switch, Firewall
• Software, Display, Keyboard, Mouse, Printer
• Ethernet cable, USB cable, HDMI cable, VGA cable, Power cable